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19-2111; Rev 0; 8/01
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
General Description
The MAX4358 is a 32 16 highly integrated video crosspoint switch matrix with input and output buffers and On-Screen Display (OSD) Insertion. This device operates from dual 3V to 5V supplies or from a single +5V supply. Digital logic is supplied from an independent single +2.7V to +5.5V supply. Individual outputs can be switched between an input video signal source and OSD information through an internal, dedicated fast 2:1 mux (40ns switching times) located before the output buffer. All inputs and outputs are buffered, with all outputs able to drive standard 75 reverse-terminated video loads. The switch matrix configuration and output buffer gain are programmed through an SPI/QSPITM-compatible, three-wire serial interface and initialized with a single update signal. The unique serial interface operates in two modes facilitating both fast updates and initialization. On power-up, all outputs are initialized in the disabled state to avoid output conflicts in large-array configurations. Superior flexibility, high integration, and space-saving packaging make this nonblocking switch matrix ideal for routing video signals in security and video-ondemand systems. The MAX4358 is available in a 144-pin TQFP package and specified over an extended -40C to +85C temperature range. The MAX4358 evaluation kit is available to speed designs.
Features
o 32 16 Nonblocking Matrix with Buffered Inputs and Outputs o Operates from a 3V, 5V, or +5V Supply o Fast Switching (40ns) 2:1 OSD Insertion Mux o Each Output Individually Addressable o Individually Programmable Output Buffer Gain (AV = +1V/V or +2V/V) o High-Impedance Output Disable for Wired-OR Connections o 0.1dB Gain Flatness to 12MHz o Minimum -62dB Crosstalk, -110dB Isolation at 6MHz o 0.05%/0.1 Differential Gain/Differential Phase Error o Low 195mW Power Consumption (0.38mW per point)
MAX4358
Ordering Information
PART MAX4358ECE TEMP RANGE -40C to +85C PIN PACKAGE 144 TQFP
Pin Configuration appears at end of data sheet.
Applications
Security Systems Video Routing Video-On-Demand Systems
IN0
Functional Diagram
OSDFILL1 OSDFILL0 OSDFILL15
MAX4358 AV* ENABLE/DISABLE OUT0
Typical Operating Circuit
IN1 32 x 16 SWITCH MATRIX
CAMERAS
2:1 OSD MUX
AV*
OUT1
IN0 IN1 OUT0 MONITOR IN31 OUT1
IN2
AV*
OUT2
IN31 RESET POWER-ON RESET THERMAL SHUTDOWN
AV*
OUT15
MAX4358
OSDFILL0
DISABLE ALL OUTPUTS
512 16
16 VCC VEE AGND VDD DGND DOUT
MONITOR
DECODE LOGIC DIN SCLK UPDATE CE SERIAL INTERFACE LATCHES MATRIX REGISTER 112 BITS UPDATE REGISTER 16 BITS
OSD GENERATOR
OSDKEY0 OSDFILL1 OSDKEY1 OUT15 MONITOR
AOUT *AV = +1V/V OR +2V/V
OSDFILL15 OSDKEY15
A0-A3 MODE OSDKEY0 OSDKEY15 OSDKEY1
SPI/QSPI are trademarks of Motorola, Inc. ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage (VCC - VEE) .....................................+11V Digital Supply Voltage (VDD - DGND) ...................................+6V Analog Supplies to Analog Ground (VCC - AGND) and (AGND - VEE) ..................................... +6V Analog Ground to Digital Ground .........................-0.3V to +0.3V IN__, OSDFILL__ Voltage Range .... (VCC + 0.3V) to (VEE - 0.3V) OUT__ Short-Circuit Duration to AGND, VCC, or VEE ....Indefinite SCLK, CE, UPDATE, MODE, A_, DIN, DOUT, RESET, AOUT, OSDKEY__..........(VDD + 0.3V) to (DGND - 0.3V) Current Into Any Analog Input Pin (IN_, OSDFILL_).........50mA Current Into Any Analog Output Pin (OUT_).....................75mA Continuous Power Dissipation (TA = +70C) 144-Pin TQFP (derate 28.6mW/C above +70C).........2.23W Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) ................................ +300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 5V
(VCC = +5V, VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_= 0, VOSDFILL_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.)
PARAMETER Operating Supply Voltage Range Logic Supply Voltage Range SYMBOL VCC VEE VDD to DGND (VEE + 2.5V) < VIN_ < (VCC - 2.5V), AV = +1V/V, RL = 150 (VEE + 2.5V) < VIN_ < (VCC - 2.5V), AV = +1V/V, RL = 10k Gain (Note 1) AV (VEE + 3.75V) < VIN_ < (VCC - 3.75V), AV = +2V/V, RL = 150 (VEE + 3.75V) < VIN_ < (VCC - 3.75V) AV = +2V/V, RL = 10k (VEE + 1V) < VIN_ < (VCC - 1.2V), AV = +1V/V, RL = 10k Gain Matching (Channel to Channel) Temperature Coefficient of Gain TCAV RL = 10k AV = +1V/V RL = 150 Input Voltage Range VIN_ RL = 10k AV = +2V/V RL = 150 VEE + 3 VEE + 3.75 VCC - 3.1 VCC 3.75 VEE + 2.5 VCC - 2.5 V VEE + 1 RL = 10k RL = 150 CONDITIONS Guaranteed by PSRR test MIN 4.5 2.7 0.97 0.995 TYP MAX 10.5 5.5 1 UNITS V V
0.99
0.999
1 V/V
1.92 1.94 0.95
1.996 2.008 0.994 0.5 0.5 10
2.08 2.06 1 1.5 2
% ppm/C
VCC - 1.2
2
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
DC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 5V (continued)
(VCC = +5V, VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_= 0, VOSDFILL_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.)
PARAMETER SYMBOL RL = 10k Output Voltage Range VOUT RL = 150 Input Bias Current Input Resistance Output Offset Voltage Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode DC Power-Supply Rejection Ratio IB RIN_ VOFFSET ISC ZOUT IOD PSRR (VEE + 1V) < VIN_ < (VCC - 1.2V) AV = +1V/V AV = +2V/V Sinking or sourcing, RL = 1 (VEE + 1V) < VIN_ < (VCC - 1.2V) (VEE + 1V) < VOUT_ < (VCC - 1.2V) 4.5V < (VCC - VEE) < 10.5V Outputs enabled, TA = +25C Outputs enabled Outputs disabled Quiescent Supply Current IEE Outputs enabled, TA = +25C Outputs enabled Outputs disabled IDD 55 4 60 105 60 VEE + 2.5 4 10 5 10 40 0.2 0.004 70 110 160 185 80 160 185 80 8 mA 1 20 40 VCC - 2.5 11 V A M mV mA A dB CONDITIONS MIN VEE + 1 TYP MAX VCC - 1.2 UNITS V
ICC
RL =
RL =
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
DC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 3V
(VCC = +3V, VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, VOSDFILL_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.)
PARAMETER Operating Supply Voltage Range Logic Supply Voltage Range SYMBOL VCC - VEE VDD to DGND (VEE + 1V) < VIN_ < (VCC - 1.2V), AV = +1V/V, RL = 150 (VEE + 1V) < VIN_ < (VCC - 1.2V), AV = +1V/V, RL = 10k Gain (Note 1) AV (VEE + 2V) < VIN_ < (VCC - 2.1V), AV = +2V/V, RL = 150 (VEE + 2V) < VIN_ < (VCC - 2.1V) AV = +2V/V, RL = 10k Gain Matching (Channel to Channel) Temperature Coefficient of Gain TCAV RL = 10k AV = +1V/V RL = 150 Input Voltage Range VIN_ RL = 10k AV = +2V/V RL = 150 RL = 10k Output Voltage Range VOUT RL = 150 Input Bias Current Input Resistance Output Offset Voltage IB RIN VOFFSET (VEE + 1V) < VIN_ < (VCC - 1.2V) AV = +1V/V AV = +2V/V VEE + 1 4 10 5 10 20 40 VCC 1.2 11 A M mV VEE + 2 VEE + 1 VEE + 2 VEE + 1 VEE + 1 RL = 10k RL = 150 1.92 1.985 2.08 CONDITIONS Guaranteed by PSRR test MIN 4.5 2.7 TYP MAX 10.5 5.5 UNITS V V
0.94
0.983
1
0.96
0.993
1 V/V
1.94
2.00 0.5 0.5 10
2.06 1.5 2
% ppm/C
VCC 1.2 VCC 1.2 V VCC 2.1 VCC 2.1 VCC 1.2 V
4
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
DC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 3V (continued)
(VCC = +3V, VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, VOSDFILL_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.)
PARAMETER Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode DC Power-Supply Rejection Ratio SYMBOL ISC ZOUT IOD PSRR ICC Quiescent Supply Current CONDITIONS Sinking or sourcing, RL = 1 (VEE + 1V) < VIN_ < (VCC - 1.2V) (VEE + 1V) < VOUT_ < (VCC - 1.2V) 4.5V < (VCC - VEE) < 10.5V RL = RL = Outputs enabled Outputs disabled IEE IDD Outputs enabled Outputs disabled 60 MIN TYP 40 0.2 0.004 75 95 50 90 45 3 mA 1 MAX UNITS mA A dB
MAX4358
DC ELECTRICAL CHARACTERISTICS--SINGLE SUPPLY +5V
(VCC = +5V, VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = VOSDFILL_ = +1.75V, AV = +1V/V, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.)
PARAMETER Operating Supply Voltage Range Logic-Supply Voltage Range SYMBOL VCC VDD to DGND (VEE + 1V) < VIN < (VCC - 2.5V), AV = +1V/V, RL = 150 Gain (Note 1) AV (VEE + 1V) < VIN < (VCC - 1.2V), AV = +1V/V, RL = 10k RL = 10k RL = 150 TCAV RL = 10k Input Voltage Range VIN AV = +1V/V RL = 150 AV = +1V/V, RL = 10k AV = +1V/V, RL = 150 VEE + 1 VEE + 1 VEE + 1 VEE + 1 CONDITIONS Guaranteed by PSRR test MIN 4.5 2.7 0.94 0.94 0.995 0.995 0.5 0.5 10 VCC 1.2 VCC 2.5 VCC 1.2 V VCC 2.5 V TYP MAX 5.5 5.5 1 V 1 3 3 % ppm/ C UNITS V V
Gain Matching (Channel to Channel) Temperature Coefficient of Gain
Output Voltage Range
VOUT
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
DC ELECTRICAL CHARACTERISTICS--SINGLE SUPPLY +5V (continued)
(VCC = +5V, VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = VOSDFILL_ = +1.75V, AV = +1V/V, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.)
PARAMETER Input Bias Current Input Resistance Output Offset Voltage Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode DC Power-Supply Rejection Ratio SYMBOL IB RIN VOFFSET ISC ZOUT IOD PSRR ICC Quiescent Supply Current IEE IDD VEE + 1V < VIN - < VCC - 1.2V AV = +1V/V Sinking or sourcing, RL = 1 (VEE + 1V) < VIN- < (VCC - 1.2V) (VEE + 1V) < VOUT- _< (VCC - 1.2V) 4.5V < VCC - VEE < 5.5V RL = RL = Outputs enabled, TA = +25C Outputs disabled Outputs enabled, TA = +25C Outputs disabled 50 CONDITIONS MIN TYP 4 10 10 35 0.2 0.004 65 85 35 80 30 4 mA 1 40 MAX 11 UNITS A M mV mA A dB
6
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
LOGIC-LEVEL CHARACTERISTICS
(VCC - VEE) = +4.5V to +10.5V, VDD = +2.7V to +5.5V, AGND = DGND = 0, VIN_ = VOSDFILL_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Input Voltage High Level Input Voltage Low Level Input Current High Level Input Current Low Level Output Voltage High Level Output Voltage Low Level Output Current High Level Output Current Low Level SYMBOL VIH VIL IIH IIL VOH VOL IOH IOL VDD = +5.0V VDD = +3V VDD = +5.0V VDD = +3V VI > 2V VI < 1V Excluding RESET RESET Excluding RESET RESET -1 -30 -1 -300 4.7 2.7 0.01 -20 0.01 -235 4.9 2.9 0.1 0.1 1 1 1 1 4 8 4 8 0.3 0.3 1 CONDITIONS MIN 3 2 0.8 0.6 1 TYP MAX UNITS V V A A V V mA mA
MAX4358
ISOURCE = 1mA, VDD = +5V ISOURCE = 1mA, VDD = +3V ISINK = 1mA, VDD = +5V ISINK = 1mA, VDD = +3V VDD = +5V, VO = +4.9V VDD = +3V, VOUT = +2.7V VDD = +5V, VO = +0.1V VDD = +3V, VO = +0.3V
AC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 5V
(VCC = +5V, VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = VOSDFILL_ = 0, RL = 150 to AGND, and TA = +25C, unless otherwise noted.)
PARAMETER Small-Signal -3dB Bandwidth Medium-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Small-Signal 0.1dB Bandwidth Medium-Signal 0.1dB Bandwidth Large-Signal 0.1dB Bandwidth SYMBOL BWSS BWMS BWLS BW0.1dB-SS BW0.1dB-MS BW0.1dB-LS CONDITIONS VOUT_ = 20mVp-p VOUT_ = 200mVp-p VOUT_ = 2Vp-p VOUT_ = 20mVp-p VOUT_ = 200mVp-p VOUT_ = 2Vp-p VOUT_ = 2V step, AV = +1V/V Slew Rate SR VOUT_ = 2V step, AV = +2V/V 160 AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V MIN TYP 95 70 90 70 40 50 15 15 15 15 12 12 150 V/s MAX UNITS MHz MHz MHz MHz MHz MHz
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
AC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 5V (continued)
(VCC = +5V, VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = VOSDFILL_ = 0, RL = 150 to AGND, and TA = +25C, unless otherwise noted.)
PARAMETER Settling Time Switching Transient (Glitch) (Note 3) AC Power-Supply Rejection Ratio Differential Gain Error (Note 4) Differential Phase Error (Note 4) Crosstalk, All Hostile Off-Isolation, Input-to-Output Input Noise Voltage Density Input Capacitance Disabled Output Capacitance Capacitive Load at 3dB Output Peaking Output Impedance ZOUT f = 6MHz Output enabled Output disabled en CIN Amplifier in disable mode SYMBOL tS 0.1% CONDITIONS VOUT_ = 0 to 2V step AV = +1V/V AV = +2V/V f = 100kHz f = 1MHz RL = 1k RL = 150 RL = 1k RL = 150 f = 6MHz f = 6MHz BW = 6MHz AV = +1V/V AV = +2V/V MIN TYP 60 60 50 50 70 68 0.01 0.05 0.03 0.1 -62 -110 73 5 3 30 3 4k MAX UNITS ns mV dB % degrees dB dB VRMS pF pF pF
AC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 3V
(VCC = +3V, VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_= VOSDFILL_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
PARAMETER Small-Signal -3dB Bandwidth Medium-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Small-Signal 0.1dB Bandwidth Medium-Signal 0.1dB Bandwidth Large-Signal 0.1dB Bandwidth SYMBOL BWSS BWMS BWLS BW0.1dB-SS BW0.1dB-MS BW0.1dB-LS VOUT_ = 20mVp-p VOUT_ = 200mVp-p VOUT_ = 2Vp-p VOUT_ = 20mVp-p VOUT_ = 200mVp-p VOUT_ = 2Vp-p CONDITIONS AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V MIN TYP 90 65 90 65 30 35 15 15 15 15 12 12 MAX UNITS MHz MHz MHz MHz MHz MHz
8
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
AC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES 3V (continued)
(VCC = +3V, VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_= VOSDFILL_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS VOUT_ = 2V step AV = +1V/V VOUT_ = 2V step AV = +2V/V Settling Time Switching Transient (Glitch) (Note 3) AC Power-Supply Rejection Ratio Differential Gain Error (Note 4) Differential Phase Error (Note 4) Crosstalk, All Hostile Off-Isolation, Input to Output Input Noise Voltage Density Input Capacitance Disabled Output Capacitance Capacitive Load at 3dB Output Peaking Output Impedance
ZOUT
MAX4358
MIN
TYP 120
MAX
UNITS
Slew Rate
SR
V/s 120 AV = +1V/V AV = +2V/V AV = +1V/V AV = +2V/V 60 60 15 20 60 40 0.03 0.2 0.08 0.2 -63 -112 73 5 3 30 ns mV dB % degrees dB dB VRMS pF pF pF
tS 0.1%
VO = 0 to 2V step
f = 100kHz f = 1MHz RL = 1k RL = 150 RL = 1k RL = 150 f = 6MHz f = 6MHz en CIN_ Amplifier in disable mode BW = 6MHz
f= 6MHz
Output enabled Output disabled
3 4k
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
AC ELECTRICAL CHARACTERISTICS--SINGLE SUPPLY +5V
(VCC = +5V, VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = VOSDFILL_ = 1.75V, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
PARAMETER Small-Signal -3dB Bandwidth Medium-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Small-Signal 0.1dB Bandwidth Medium-Signal 0.1dB Bandwidth Large-Signal 0.1dB Bandwidth Slew Rate Settling Time Switching Transient (Glitch) AC Power-Supply Rejection Ratio Differential Gain Error (Note 4) Differential Phase Error (Note 4) Crosstalk, All Hostile Off-Isolation, Input-toOutput Input Noise Voltage Input Capacitance Disabled Output Capacitance Capacitive Load at 3dB Output Peaking Output Impedance ZOUT f = 6MHz Output enabled Output disabled en CIN_ Amplifier in disable mode f = 100kHz f = 1MHz RL = 1k RL = 150 RL = 1k RL = 150 f = 6MHz f = 6MHz BW = 6MHz SYMBOL BWSS BWMS BWLS BW0.1dB-SS BW0.1dB-MS BW0.1dB-LS SR tS 0.1% CONDITIONS VOUT_ = 20mVp-p VOUT = 200mVp-p VOUT = 1.5Vp-p VOUT = 20mVp-p VOUT_ = 200mVp-p VOUT_ = 1.5Vp-p VOUT_ = 2V step, AV = +1V/V VOUT_ = 0 to 2V step MIN TYP 90 90 38 12 12 12 100 60 25 70 69 0.03 0.15 0.06 0.2 -63 -110 73 5 3 30 3 4k MAX UNITS MHz MHz MHz MHz MHz MHz V/s ns mV dB % degrees dB dB VRMS pF pF pF
10
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
SWITCHING CHARACTERISTICS
((VCC - VEE) = +4.5V to +10.5V, VDD = +2.7V to +5.5V, DGND = AGND = 0, VIN_ = VOSDFILL_ = 0 for dual supplies, VIN_ = VOSDFILL_ = +1.75V for single supply, RL = 150 to AGND, CL = 100pF, AV = +1V/V, and TA = TMIN - TMAX, unless otherwise noted. Typical values are at TA = +25C. )
PARAMETER Delay: UPDATE to Video Out Delay: UPDATE to AOUT Delay: OSDKEY_ to Output Delay: SCLK to DOUT Valid Delay: Output Disable Delay: Output Enable Setup: CE to SCLK Setup: DIN to SCLK Hold Time: SCLK to DIN Minimum High Time: SCLK Minimum Low Time: SCLK Minimum Low Time: UPDATE Setup Time: UPDATE to SCLK Hold Time: SCLK to UPDATE Setup Time: MODE to SCLK Hold Time: MODE to SCLK Minimum Low Time: RESET Delay: RESET SYMBOL tPdUdVo tPdUdAo tPdOkVo/ tPdOfVo tPdDo tPdHOeVo tPdLOeVo tSuCe tSuDi tHdDi tMnHCk tMnLCk tMnLUd tSuHUd tHdHUd tSuMd tHdMd tMnLRst tPdRst 10k pulldown to AGND Rising edge of UPDATE to falling edge of SCLK Falling edge of SCLK to falling edge of UPDATE Minimum time from clock edge to MODE with valid data clocking Minimum time from clock edge to MODE with valid data clocking 100 100 100 100 100 100 100 100 100 300 600 CONDITIONS VIN = 0.5V step MODE = 0, time to AOUT = low after UPDATE = low VOUT = 0.5V step VDD = +5V VDD = +3V MIN TYP 200 30 40 60 30 300 200 200 800 800 100 MAX 450 200 UNITS ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns
Logic state change in DOUT on active SCLK edge VOUT = 0.5V, 1k pulldown to AGND Output disabled, 1k pulldown to AGND, VIN = 0.5V
Note 1: Associated output voltage may be determined by multiplying the input voltage by the specified gain (AV) and adding output offset voltage. Gain is specified for IN_ and OSDFILL_ signal paths. Note 2: Logic level characteristics apply to the following pins: DIN, DOUT, SCLK, CE, UPDATE, RESET, A3-A0, MODE, AOUT, and OSDKEY_. Note 3: Switching transient settling time is guaranteed by the settling time (tS) specification. Switching transient is a result of updating the switch matrix. Note 4: Input test signal: 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0 to 100IRE). IRE is a unit of video-signal amplitude developed by the International Radio Engineers: 140IRE = 1.0V. Note 5: All devices are 100% production tested at +25C. Specifications over temperature limits are guaranteed by design.
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Symbol Definitions
SYMBOL Ao Ce Ck Di Do Md Oe Rst Ud Vo H Hd L Mn Mx Pd Su Tr W TYPE Signal Signal Signal Signal Signal Signal Signal Signal Signal Signal Property Property Property Property Property Property Property Property Property DESCRIPTION Address Valid Flag (AOUT) Clock Enable (CE) Clock (SCLK) Serial Data In (DIN) Serial Data Output (DOUT) MODE Output enable Reset Input (RESET) UPDATE Video Out (OUT) High- or Low-to-High transition Hold Low- or High-to-Low transition Minimum Maximum Propagation delay Setup Transition Width
Naming Conventions:
* All parameters with time units are given "t" designation, with appropriate subscript modifiers. * Propagation delays for clocked signals are from active edge of clock. * Propagation delay for level sensitive signals is from input to output at 50% point of a transition. * Setup and Hold times are measured from 50% point of signal transition to 50% point of clocking signal transition. * Setup time refers to any signal that must be stable before active clock edge, even if signal is not latched or clocked itself. * Hold time refers to any signal that must be stable during and after active clock edge, even if signal is not latched or clocked. * Propagation delays to unobservable internal signals are modified to setup and hold designations applied to observable IO signals.
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Timing Diagram
DATA AND CONTROL TIMING Ce: CE tSuCe Ck: SCLK tMnHCk tMnLCk Di: DIN Do: DOUT tPdDo Ud: UPDATE tMnLUd tHdUd tWTrVo Vo: OUT_ Ao: AOUT tPdUdAo tPdHOeVo Oe: OUTPUT ENABLE tPdLOeVo tPdRstVo tMulRst Hi-Z tPdUdVo Hi-Z tSuUd tSuDi tHdDi tHdCe TIMING PARAMETER DEFINITIONS NAME tHdDi tMnHCk tMnLCk tMnLUd tSuHUd Not Valid tHdHUd Not Valid tPdDiDo tMnMd tMxTr tMnLRst tPdRstVo DESCRIPTION Hold Time: Clock to Data In Min High Time: Clk Min Low Time: Clk Min Low Time: Update Setup Time: UPDATE to Clk with UPDATE High Setup Time: UPDATE to Clk with UPDATE Low Hold Time: Clk to UPDATE with UPDATE high Hold Time: Clk to UPDATE with UPDATE Low Asynchronous Delay: Data In to Data Out Min Low Time: MODE Max Rise Time: Clk, Update Min Low Time: Reset Delay: Reset to Video Output
Rst: RESET
TIMING PARAMETER DEFINITIONS NAME DESCRIPTION tPdUdVo Delay: Update to Video Out tPdUdAo Delay: UPDATE to Aout Delay: OSD Key to Video Output tPdOkVo tPdOfVo Delay: OSD Fill to Video Output Delay: Clk to Data Out tPdDo tPdHOeVo Delay: Output Enable to Video Output tPdLOeVo tSuCe tSuDi (High: Disable) Delay: Output Enable to Video Output (Low: Enable) Setup: Clock Enable to Clock Setup Time: Data In to Clock
OSD: KEY AND FILL TIMING IN_ VIDEO SOURCE (SELECTED INPUT)
Of: OSDFILLi Ok: OSDKEYi OUTi tPdHOkVo
VIDEO OUTPUT (WITH SUPERIMPOSED OSD) tPdLOkVo tPdLOfVo
Figure 1. Timing Diagram
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Dual Supplies 5V
(VCC = +5V and VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc01
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc02
SMALL-SIGNAL FREQUENCY RESPONSE
RL = 150 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 AV = +2V/V AV = +1V/V
MAX4358 toc03
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7
RL = 150 AV = +2V/V
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7
RL = 150 AV = +1V/V
3
AV = +2V/V
AV = +1V/V
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc04
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc05
SMALL-SIGNAL FREQUENCY RESPONSE
RL = 1k AV = +1V/V 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 AV = +2V/V
MAX4358 toc06
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7
RL = 1k AV = +2V/V
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7
RL = 1k AV = +1V/V
3
AV = +2V/V
AV = +1V/V
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
LARGE-SIGNAL GAIN FLATNESS vs. FREQUENCY
MAX4358 toc07
LARGE-SIGNAL GAIN FLATNESS vs. FREQUENCY
MAX4358 toc08
LARGE-SIGNAL FREQUENCY RESPONSE (AV = +1V/V)
2 1 NORMALIZED GAIN (dB) 0 1 2 3 4 5 6 7 CL = 15pF CL = 30pF
MAX4358 toc09
0.7 0.6 0.5 NORMALIZED GAIN (dB) 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 -0.3 0.1 1 10 FREQUENCY (MHz) 100 AV = +2V/V AV = +1V/V
0.3 0.2 0.1 NORMALIZED GAIN (dB) 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7
RL = 1k
3 CL = 45pF
AV = +1V/V
AV = +2V/V
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
14
______________________________________________________________________________________
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Typical Operating Characteristics--Dual Supplies 5V (continued)
(VCC = +5V and VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE (AV = +2V/V)
2 1 NORMALIZED GAIN (dB) 0 1 2 3 4 5 6 7 0.1 1 10 FREQUENCY (MHz) 100 1000 CL = 15pF CL = 30pF CL = 45pF
MAX4358 toc10
MAX4358
MEDIUM-SIGNAL FREQUENCY RESPONSE (AV = +1V/V)
MAX4358 toc11
MEDIUM-SIGNAL FREQUENCY RESPONSE (AV = +2V/V)
6 5 NORMALIZED GAIN (dB) 4 3 2 1 0 -1 -2 -3 CL = 15pF CL = 30pF CL = 45pF
MAX4358 toc12
3
9 8 7 NORMALIZED GAIN (dB) 6 5 4 3 2 1 0 -1 0.1 1 10 FREQUENCY (MHz) 100 CL = 15pF CL = 30pF CL = 45pF
7
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
CROSSTALK vs. FREQUENCY
MAX4358 toc13
CROSSTALK vs. FREQUENCY
AV = +2V/V
MAX4358 toc14
DISTORTION vs. FREQUENCY
AV = +1V/V -10 -20 DISTORTION (dBc) -30 -40 -50 -60 -70 -80 -90 -100 3ND HARMONIC 2ND HARMONIC
MAX4358 toc15
-40 AV = +1V/V -50 CROSSTALK (dB) -60 -70 -80 -90 -100 0.1 1 10 FREQUENCY (MHz) 100
-40 -45 -50 CROSSTALK (dB) -55 -60 -65 -70 -75 -80 -85 -90
0
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
DISTORTION vs. FREQUENCY
MAX4358 toc16
ENABLED-OUTPUT IMPEDANCE vs. FREQUENCY
MAX4358 toc17
DISABLED OUTPUT IMPEDANCE vs. FREQUENCY
MAX4358 toc18
0 -10 -20 DISTORTION (dBc) -30 -40 -50 -60 -70 -80 -90 -100
AV = +2V/V
1000
1M 100k OUTPUT IMPEDANCE () 10k 1k 100 10
OUTPUT IMPEDANCE ()
100
2ND HARMONIC
10
3ND HARMONIC
1
0.1 0.1 1 10 FREQUENCY (MHz) 100 1000 0.1 1 10 FREQUENCY (MHz) 100 1000
1 0.1 1 10 FREQUENCY (MHz) 100 1000
______________________________________________________________________________________
15
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Dual Supplies 5V (continued)
(VCC = +5V and VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
OFF ISOLATION vs. FREQUENCY
MAX4358 toc19
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX4358 toc20
INPUT VOLTAGE NOISE vs. FREQUENCY
MAX4358 toc21
-40 -50 OFF ISOLATION (dB) -60
-50
1000
-55
PSRR (dB)
-70 -80 -90 -100
-60
VOLTAGE NOISE (nVHz) 10k 100k 1M FREQUENCY (Hz) 10M 100M
100
-65
-70 -110 -120 100k -75 1M 10M FREQUENCY (Hz) 100M 1G 10 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
LARGE-SIGNAL PULSE RESPONSE (AV = +1V/V)
LARGE-SIGNAL PULSE RESPONSE (AV = +2V/V)
MAX4358 toc22
MAX4358 toc23
MEDIUM-SIGNAL PULSE RESPONSE (AV = +1V/V)
MAX4358 toc24
INPUT 1V/div
INPUT 500mV/div
INPUT 100mV/div
OUTPUT 1V/div
OUTPUT 1V/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
MEDIUM-SIGNAL PULSE RESPONSE (AV = +2V/V)
MAX4358 toc25
SWITCHING TIME (AV = +1V/V)
MAX4358 toc26
SWITCHING TIME (AV = +2V/V)
MAX4358 toc27
INPUT 50mV/div
VUPDATE 5V/div
VUPDATE 5V/div
OUTPUT 100mV/div
VOUT 500mV/div
VOUT 1V/div
20ns/div
20ns/div
20ns/div
16
______________________________________________________________________________________
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Typical Operating Characteristics--Dual Supplies 5V (continued)
(VCC = +5V and VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
MAX4358
SWITCHING TRANSIENT (GLITCH) (AV = +1V/V)
SWITCHING TRANSIENT (GLITCH) (AV = +2V/V)
OFFSET VOLTAGE DISTRIBUTION
MAX4358 toc30
MAX4358 toc28
MAX4358 toc29
300 250 200 150 100 50 0
VUPDATE 5V/div
VUPDATE 5V/div
VOUT 25mV/div
VOUT 25mV/div
20ns/div
20ns/div
-14 -12 -10 -8 -6 -4 -2
0
2
4
6
OFFSET VOLTAGE (mV)
DIFFERENTIAL GAIN AND PHASE vs. DC VOLTAGE (RL = 150)
MAX4358 toc31
DIFFERENTIAL GAIN AND PHASE vs. DC VOLTAGE (RL = 1k)
DIFF GAIN (%) 0.015 0.010 0.005 0.000 -0.005
MAX4358 toc32
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +1V/V)
MAX4358 toc33
DIFF GAIN (%)
0.08 0.06 0.04 0.02 0.00 -0.02
INPUT 1V/div
0 10 20 30 40 50 60 70 80 90 100 0.15 0.10 0.05 0.00 -0.05 0 10 20 30 40 50 60 70 80 90 100 IRE 0.05 0.04 0.03 0.02 0.01 0.00 -0.01 DIFF PHASE () DIFF PHASE ()
0 10 20 30 40 50 60 70 80 90 100
OUTPUT 1V/div
0 10 20 30 40 50 60 70 80 90 100 IRE
20ns/div
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +2V/V)
MAX4358 toc34
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +1V/V)
MAX4358 toc35
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +2V/V)
MAX4358 toc36
INPUT 500mV/div
INPUT 100mV/div
INPUT 50mV/div
OUTPUT 1V/div
OUTPUT 100mV/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
______________________________________________________________________________________
17
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Dual Supplies 5V (continued)
(VCC = +5V and VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
GAIN vs. TEMPERATURE
0.15 NORMALIZED GAIN (dB) 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -50 -25 0 25 50 75 100 TEMPERATURE (C) AV = +1V/V AV = +2V/V
MAX4358 toc37
RESET DELAY vs. CRESET
MAX4358 toc38
OSD SWITCHING TRANSIENT (100IRE LEVEL SWITCH) (AV = +2V/V)
0.20
10 1 100m RESET DELAY (s) 10m 1m 100 10 1 100n 10n 1p 10p 100p 1n
MAX4358 toc39
VOSDKEY0 5V/div
100IRE
VOUT0 500mV/div 0IRE 10n 100n 1 10 100 CRESET (F)
50ns/div
OSD SWITCHING 3.58MHz SIGNAL (AV = +2V/V)
SUPPLY CURRENT vs. TEMPERATURE
MAX4358 toc41
MAX4358 toc40
70 60 SUPPLY CURRENT (mA) 50 IEE 40 30 20 10 0 IDD -50 -25 0 25 50 75 ICC
VOSDKEY0 5V/div
VOUT0 500mV/div
50ns/div
100
TEMPERATURE (C)
18
______________________________________________________________________________________
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Typical Operating Characteristics--Dual Supplies 3V
(VCC = +3V and VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc42
MAX4358
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc43
SMALL-SIGNAL FREQUENCY RESPONSE
2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7 AV = +2V/V RL = 150 AV = +1V/V
MAX4358 toc44
3 2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7
3 2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7
RL = 150 AV = +1V/V
RL = 150 AV = +1V/V
3
AV = +2V/V
AV = +2V/V
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc45
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc46
SMALL-SIGNAL FREQUENCY RESPONSE
2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7 AV = +2V/V RL = 1k AV = +1V/V
MAX4358 toc47
3 2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7 0.1
3 2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7
3
RL = 1k AV = +2V/V
RL = 1k AV = +2V/V
AV = +1V/V
AV = +1V/V
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
LARGE-SIGNAL GAIN FLATNESS VS. FREQUENCY
MAX4358 toc48
LARGE-SIGNAL GAIN FLATNESS VS. FREQUENCY
MAX4358 toc49
LARGE-SIGNAL FREQUENCY RESPONSE (AV = +1V/V)
2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 CL = 15pF CL = 30pF CL = 45pF
MAX4358 toc50
0.9 0.8 0.7 NORMALIZED GAIN (dB) 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 0.1 1 10 FREQUENCY (MHz) 100 AV = +2V/V AV = +1V/V
0.6 0.5 0.4 NORMALIZED GAIN (dB) 0.3 0.2 0.1 0.0 -0.1 -0.2 -0.3 -0.4
RL = 1k AV = +1V/V
3
AV = +2V/V
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
______________________________________________________________________________________
19
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Dual Supplies 3V (continued)
(VCC = +3V and VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE (AV = +2V/V)
MAX4358 toc51
MEDIUM-SIGNAL FREQUENCY RESPONSE
(AV = +1V/V)
MAX4358 toc52
MEDIUM-SIGNAL FREQUENCY RESPONSE
(AV = +2V/V) 6 5 NORMALIZED GAIN (dB) 4 3 2 1 0 -1 -2 -3 CL = 15pF CL = 30pF CL = 45pF
MAX4358 toc53
3 2 1 NORMALIZED GAIN (dB) -0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 FREQUENCY (MHz) 100 CL = 15pF CL = 30pF CL = 45pF
9 8 7 NORMALIZED GAIN (dB) 6 5 4 3 2 1 0 1 CL = 30pF CL = 15pF CL = 45pF
7
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
CROSSTALK VS. FREQUENCY
MAX4358 toc54
CROSSTALK VS. FREQUENCY
MAX4358 toc55
DISTORTION VS. FREQUENCY
-10 -20 DISTORTION (dB) -30 -40 -50 -60 -70 -80 -90 -100 3RD HARMONIC AV = + 1V/V 2ND HARMONIC
MAX4358 toc56
-40 -45 -50 CROSSTALK (dB) -55 -60 -65 -70 -75 -80 -85 -90
-30 -35 -40 CROSSTALK (dB) -45 -50 -55 -60 -65 -70 -75 -80
AV = + 1V/V
AV = + 2V/V
100k
1M
10M FREQUENCY (Hz)
100M
1G
100k
1M
10M FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
FREQUENCY (Hz)
DISTORTION VS. FREQUENCY
-10 -20 DISTORTION (dB) -30 -40 -50 -60 -70 -80 -90 -100 100k 1M 10M 100M FREQUENCY (Hz) 3RD HARMONIC AV = + 2V/V 2ND HARMONIC
MAX4358 toc57
ENABLED OUTPUT IMPEDANCE VS. FREQUENCY
MAX4358 toc58
DISABLED OUTPUT IMPEDANCE VS. FREQUENCY
MAX4358 toc59
1000
1M 100k OUTPUT IMPEDANCE () 10k 1k 100 10 1
OUTPUT IMPEDANCE ()
100
10
1 0.1 0.1 1 10 FREQUENCY (MHz) 100 1000
0.1
1
10 FREQUENCY (MHz)
100
1000
20
______________________________________________________________________________________
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Typical Operating Characteristics--Dual Supplies 3V (continued)
(VCC = +3V and VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
OFF ISOLATION VS. FREQUENCY
MAX4358 toc60
MAX4358
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX4358 toc61
INPUT VOLTAGE NOISE vs. FREQUENCY
MAX4358 toc62
-40 -50 OFF ISOLATION (dB) -60
-50
1000
-55
PSRR (dB)
-70 -80 -90 -100
-60
VOLTAGE NOISE (nV/Hz)
100
-65
-70 -110 -120 100k 1M 10M FREQUENCY (Hz) 100M 1G -75 10k 100k 1M FREQUENCY (Hz) 10M 100M
10 10 100 1k 10k 100k 1M 10M FREQUENCY(Hz)
LARGE-SIGNAL PULSE RESPONSE (AV = +1V/V)
MAX4358 toc63
LARGE-SIGNAL PULSE RESPONSE (AV = +2V/V)
MAX4358 toc64
MEDIUM-SIGNAL PULSE RESPONSE (AV = +1V/V)
MAX4358 toc65
INPUT 1V/div
INPUT 500mV/div
INPUT 100mV/div
OUTPUT 1V/div
OUTPUT 1V/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
MEDIUM-SIGNAL PULSE RESPONSE (AV = +2V/V)
MAX4358 toc66
SWITCHING TIME (AV = +1V/V)
MAX4358 toc67
SWITCHING TIME (AV = +2V/V)
MAX4356 toc68
INPUT 50mV/div
VUPDATE 3V/div
VUPDATE 3V/div
OUTPUT 100mV/div
VOUT 500mV/div
VOUT 1V/div
20ns/div
20ns/div
20ns/div
______________________________________________________________________________________
21
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Dual Supplies 3V (continued)
(VCC = +3V and VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
SWITCHING TRANSIENT GLITCH (AV = +1V/V) SWITCHING TRANSIENT GLITCH (AV = +2V/V)
OFFSET VOLTAGE DISTRIBUTION
MAX4358 toc71
MAX4358 toc69
MAX4358 toc70
300 250
VUPDATE 3V/div
VUPDATE 3V/div
200 150 100
VOUT 25mV/div
VOUT 25mV/div
50 0
20ns/div
20ns/div
-15 -13 -11 -9 -7
-5 -3 -1
1
3
5
OFFSET VOLTAGE (mV)
DIFFERENTIAL GAIN AND PHASE (RL = 150)
DIFFERENTIAL GAIN (%)
DIFFERENTIAL GAIN (%)
DIFFERENTIAL GAIN AND PHASE (RL = 1k)
MAX4358 toc72
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +1V/V)
MAX4358 toc73
MAX4358 toc74
0.25 0.15 0.05 -0.05 0.25 0.15 0.05 -0.05 10 20 30 40 50 60 70 80 90 100 IRE
0.15 0.05
-0.05 0.25 0.15 0.05 -0.05 10 20 30 40 50 60 70 80 90 100 IRE
INPUT 1V/div
DIFFERENTIAL PHASE ()
DIFFERENTIAL PHASE ()
OUTPUT 1V/div
20ns/div
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +2V/V)
MAX4358 toc75
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +1V/V)
MAX4358 toc76
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF, AV = +2V/V)
MAX4358 toc77
INPUT 500mV/div
INPUT 100mV/div
INPUT 50mV/div
OUTPUT 1V/div
OUTPUT 100mV/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
22
______________________________________________________________________________________
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Typical Operating Characteristics--Dual Supplies 3V (continued)
(VCC = +3V and VEE = -3V, VDD = +3V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
OSD SWITCHING TRANSIENT (100IRE LEVEL SWITCH)
MAX4356 toc79
MAX4358
GAIN VS. TEMPERATURE
MAX4356 toc78
RESET DELAY vs. CRESET
10 1 100m RESET DELAY (s) 10m 1m 100 10 1 VOUT0 500mV/div
AV = +2V/V VOSDKEY0 3V/div
0.15 NORMALIZED GAIN (dB) 0.10 0.05 0 -0.05 -0.10 AV = +1V/V -0.15 -0.20 -50 -25 0 25 50 75 AV = +2V/V
100n 10n 100 1p 10p 100p 1n 10n 100n 1 10 100 CRESET (F) 50ns/div
TEMPERATURE (C)
OSD SWITCHING 3.58MHz SIGNAL
AV = +2V/V VOSDKEY0 3V/div
MAX4358 toc81
VOUT0 500mV/div
50ns/div
______________________________________________________________________________________
23
MAX4358 toc80
0.20
100IRE
0IRE
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Single Supply +5V
(VCC = +5V and VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc82
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc83
SMALL-SIGNAL FREQUENCY RESPONSE
2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 RL = 150
MAX4358 toc84
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 FREQUENCY (MHz) 100 RL = 150
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 RL = 150
3
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc85
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc86
SMALL-SIGNAL FREQUENCY RESPONSE
2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 RL = 1k
MAX4358 toc87
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 0.1
RL = 1k
3 2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 RL = 1k
3
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
LARGE-SIGNAL GAIN FLATNESS vs. FREQUENCY
MAX4358 toc88
LARGE-SIGNAL GAIN FLATNESS vs. FREQUENCY
0.5 0.4 NORMALIZED GAIN (dB) 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 RL = 1k
MAX4358 toc89
LARGE-SIGNAL FREQUENCY RESPONSE (AV = +1V/V)
2 1 NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 -5 -6 -7 CL = 15pF CL = 30pF CL = 45pF
MAX4358 toc90
0.9 0.8 0.7 NORMALIZED GAIN (dB) 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -0.1 0.1 1 10 FREQUENCY (MHz) 100
0.6
3
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
0.1
1
10 FREQUENCY (MHz)
100
1000
24
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Single Supply +5V (continued)
(VCC = +5V and VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
MEDIUM-SIGNAL FREQUENCY RESPONSE (AV = +1V/V)
MAX4358 toc91
CROSSTALK vs. FREQUENCY
MAX4358 toc92
DISTORTION vs. FREQUENCY
-10 -20 DISTORTION (dBc) -30 -40 -50 -60 -70 -80 -90 -100 3rd HARMONIC 2nd HARMONIC
MAX4358 toc93
9 8 7 NORMALIZED GAIN (dB) 6 5 4 3 2 1 0 -1 0.1 1 10 FREQUENCY (MHz) 100 CL = 15pF CL = 30pF CL = 45pF
-50 -55 -60 CROSSTALK (dB) -65 -70 -75 -80 -85 -90 -95 -100
0
1000
100k
1M
10M FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
FREQUENCY (Hz)
ENABLED OUTPUT IMPEDANCE vs. FREQUENCY
MAX4358 toc94
DISABLED OUTPUT IMPEDANCE vs. FREQUENCY
MAX4358 toc95
OFF ISOLATION vs. FREQUENCY
-50 OFF ISOLATION (dB) -60 -70 -80 -90 -100
MAX4358 toc96
1000
1M 100k OUTPUT IMPEDANCE () 10k 1k 100 10 1
-40
OUTPUT IMPEDANCE ()
100
10
1 0.1 0.1 1 10 FREQUENCY (MHz) 100 1000
-110 -120 0.1 1 10 FREQUENCY (MHz) 100 1000 100k 1M 10M FREQUENCY (Hz) 100M 1G
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX4358 toc97
INPUT VOLTAGE NOISE vs. FREQUENCY
MAX4358 toc98
LARGE-SIGNAL PULSE RESPONSE
MAX4358 toc99
-50
1000
-55
-60
VOLTAGE NOISE (NV/Hz)
INPUT 1V/div
PSRR (dB)
100
-65
-70
OUTPUT 1V/div
-75 10k 100k 1M FREQUENCY (Hz) 10M 100M
10 10 100 1k 10k 100k 1M 10M 20ns/div FREQUENCY (Hz)
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25
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Single Supply +5V (continued)
(VCC = +5V and VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
MEDIUM-SIGNAL PULSE RESPONSE
MAX4358 toc100
SWITCHING TIME
MAX4358 toc101
INPUT 100mV/div
VUPDATE 5V/div
OUTPUT 100mV/div
VOUT 500mV/div
20ns/div
20ns/div
SWITCHING TRANSIENT (GLITCH)
MAX4358 toc102
OFFSET VOLTAGE HISTOGRAM
MAX4358 toc103
250
VUPDATE 5V/div
200
150
100 VOUT 25mV/div
50
0 20ns/div -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 OFFSET VOLTAGE (mV) 0
DIFFERENTIAL GAIN AND PHASE (RL = 150)
0.25 0.20 DIFFERENTIAL 0.15 GAIN (%) 0.10 0.05 0 -0.05
MAX4358 toc104
DIFFERENTIAL GAIN AND PHASE (RL = 1k)
0.04 DIFFERENTIAL 0.03 0.02 GAIN (%) 0.01 0 -0.01
MAX4358 toc105
0.30 0.25 0.20 DIFFERENTIAL 0.15 PHASE (%) 0.10 0 -0.05 -0.10 10 20 30 40 50 60 70 80 90 100 IRE
0.10 0.08 0.06 DIFFERENTIAL 0.04 PHASE (%) 0.02 0 -0.02 10 20 30 40 50 60 70 80 90 100 IRE
26
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Typical Operating Characteristics--Single Supply +5V (continued)
(VCC = +5V and VEE = 0, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, AV = +1V/V, and TA = +25C, unless otherwise noted.)
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF)
MAX4358 toc106
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (CL = 30pF)
MAX4358 toc107
INPUT 1V/div
INPUT 100mV/div
INPUT 1V/div
OUTPUT 100mV/div
20ns/div
20ns/div
GAIN vs. TEMPERATURE
MAX4358 toc108
RESET DELAY vs. CRESET
10 1 RESET DELAY (s) 100m 10m 1m 100 10
MAX4358 toc109
0.20 0.15 NORMALIZED GAIN (dB) 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -50 -25 0 25 50 75
100
1 100n 10n 100 1p 10p 100p 1n 10n 100n 1 10 100 CRESET (F) TEMPERATURE (C)
OSD SWITCHING TRANSIENT (100IRE LEVEL SWITCH)
MAX4358 toc110
OSD SWITCHING 3.58MHz SIGNAL
MAX4358 toc111
VOSDKEY0 5V/div
VOSDKEY0 5V/div
100IRE VOUT0 250mV/div 0IRE VOUT0 250mV/div
50ns/div
50ns/div
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27
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Pin Description
PIN 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 127, 129, 131, 133, 135, 137, 139, 141, 143 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 72, 73, 107, 108, 109, 126, 128, 130, 132, 134, 136, 138, 140, 142 36, 74, 78, 82, 86, 90, 94, 98, 102, 106 38, 40, 42, 44 46 47 48 49 50 51 NAME FUNCTION
IN0-IN31
Buffered Analog Inputs
AGND
Analog Ground
VCC A3-A0 DGND AOUT MODE DIN SCLK UPDATE
Positive Analog Supply. Bypass each pin with a 0.1F capacitor to AGND. Connect a single 10F capacitor from one VCC pin to AGND. Address Programming Inputs. Connect to DGND or VDD to select the address for individual output address mode. See Table 4. Digital Ground Address Recognition Output. AOUT drives low after successful chip address recognition. Serial Interface Mode Select Input. Drive high for Complete Matrix Mode (Mode 1), or drive low for Individual Output Address Mode (Mode 0). Serial Data Input. Data is clocked-in on the falling edge of SCLK. Serial Clock Input Update Input. Drive UPDATE low to transfer data from Mode Registers to the switch matrix. Asynchronous Reset Input/Output. Drive RESET low to initiate hardware reset. All analog outputs are disabled. Additional power-on reset delay may be set by connecting a small capacitor from RESET to DGND. Clock Enable Input. Drive low to enable the serial data interface. Serial Data Output. In Complete Matrix Mode, data is clocked through the 112bit Matrix Control shift register. In Individual Output Address Mode, data at DIN passes directly to DOUT. Digital Control Input. Control for the fast 2:1 OSD Insertion multiplexer routing signal to output buffers. A logic high routes programmed IN_ analog input signal to output buffer. A logic low routes the dedicated OSDFILL_ input to corresponding output buffer. Digital Logic Supply. Bypass VDD with a 0.1F capacitor to DGND. Buffered Analog Outputs. Gain is individually programmable for AV = +1V/V or AV = +2V/V via the serial interface. Outputs may be individually disabled (high impedance). On power-up, or assertion of RESET, all outputs are disabled. Negative Analog Supply. Bypass each pin with a 0.1F capacitor to AGND. Connect a single 10F capacitor from one VEE pin to AGND. Dedicated OSD Analog Signal Buffered Inputs. For each output buffer amplifier. OSDFILLi input signal is routed to output buffer amplifier OUTi when the corresponding OSDKEYi is low.
52 53 54
RESET CE DOUT
55-70
OSDKEY0- OSDKEY15 VDD OUT0- OUT15 VEE OSDFILL15 -OSDFILL0
71 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105 76, 80, 84, 88, 92, 96, 100, 104, 144 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125
28
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Functional Diagram
OSDFILL1 OSDFILL0 OSDFILL15
MAX4358
MAX4358 IN0 AV* ENABLE/DISABLE OUT0
IN1
32 x 16 SWITCH MATRIX
2:1 OSD MUX
AV *
OUT1
IN2
AV *
OUT2
IN31 RESET POWER-ON RESET THERMAL SHUTDOWN
AV *
OUT15
DISABLE ALL OUTPUTS DIN SCLK UPDATE CE
512 16
16 VCC VEE AGND VDD DGND DOUT
DECODE LOGIC SERIAL INTERFACE LATCHES MATRIX REGISTER 112 BITS UPDATE REGISTER 16 BITS *AV = +1V/V OR +2V/V A0-A3 MODE OSDKEY0 OSDKEY15 OSDKEY1
AOUT
Detailed Description
The MAX4358 is a highly integrated 32 16 nonblocking video crosspoint switch matrix . All inputs and outputs are buffered, with all outputs able to drive standard 75 reverse-terminated video loads. A three-wire interface programs the switch matrix and initializes with a single update signal. The unique serial interface operates in one of two modes, Complete Matrix Mode (Mode 1) or Individual Output Address Mode (Mode 0). The signal path of the MAX4358 is from the buffered inputs (IN0-IN31), through the switching matrix, buffered by the output amplifiers, and presented at the outputs (OUT0-OUT15) (Functional Diagram). The other functional blocks are the serial interface and control logic. Each of the functional blocks is described in detail below.
Analog Outputs
The MAX4358 outputs are high-speed amplifiers capable of driving 150 (75 back-terminated) loads. The gain, AV = +1V/V or +2V/V, is selectable via programming bit 5 of the serial control word. Amplifier compensation is automatically optimized to maximize the bandwidth for each gain selection. Each output can be individually enabled and disabled via bit 6 of the serial control word. When disabled, the output is high impedance presenting typically 4k load, and 3pF output capacitance, allowing multiple outputs to be connected together for building large arrays. On power-up (or asynchronous RESET) all outputs are initialized in the disabled state to avoid output conflicts in large array configurations. The programming and operation of the MAX4358 is output referred. Outputs are configured individually to connect to any one of the 32 analog inputs, programmed to the desired gain (AV = +1V/V or +2V/V), and enabled or disabled in a high-impedance state.
29
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Table 1. Operation Truth Table
CE 1 UPDATE X SCLK X DIN X DOUT X MODE X AOUT X RESET 1 OPERATION/COMMENTS No change in logic Data at DIN is clocked on negative edge of SCLK into 112bit Complete Matrix Mode register. DOUT supplies original data in 112 SCLK pulses later. Data in serial 112-bit Complete Matrix Mode register is transferred into parallel latches which control the switching matrix. Data at DIN is routed to Individual Output Address Mode shift register. DIN is also connected directly to DOUT so that all devices on the serial bus may be addressed in parallel. 4-bit chip address A3-A0 is compared to D14-D11. If equal, remaining 11 bits in Individual Output Address Mode Register are decoded, allowing reprogramming for a single output. AOUT signals successful individual matrix update. Asynchronous reset. All outputs are disabled. Other logic remains unchanged.
0
1
Di
Di-112
1
1
1
0
0
X
X
X
1
1
1
0
1
Di
Di
0
1
1
0
0
X
Di
Di
0
0
1
X
X
X
X
X
X
X
0
Note: "X" = Don't Care
Analog Inputs
The MAX4358 offers 32 analog input channels. Each input is buffered before the crosspoint matrix switch, allowing one input to cross-connect up to 16 outputs. The input buffers are voltage feedback amplifiers with high-input impedance and low input bias current. This allows the use of very simple input clamp circuits.
Switch Matrix
The MAX4358 has 512 individual T-switches making a 32 16 switch matrix. The switching matrix is 100% nonblocking, which means that any input may be routed to any output. The switch matrix programming is output-referred. Each output may be connected to any one of the 32 analog inputs. Any one input can be routed to all 16 outputs with no signal degradation.
OSDFILL and OSDKEY Inputs
Intended for on-screen display insertion, the 16 OSDFILL inputs are buffered analog signal inputs that are routed to a dedicated output buffer through a fast 2:1 MUX. The signal presented to the output buffer is selected from the programmed analog input signal (IN_) and the dedicated OSDFILL input signal.
30
Digital Interface
The digital interface consists of the following pins: DIN, DOUT, SCLK, AOUT, UPDATE, CE, A3-A0, MODE, and RESET. DIN is the serial-data input, DOUT is the serialdata output.
______________________________________________________________________________________
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
A0-A3 CHIP ADDRESS 4
SCLK CE MODE
4 16-BIT INDIVIDUAL OUTPUT ADDRESS MODE REGISTER SCLK CE MODE DIN
MODE S A DATA ROUTING GATE B MODE
11
DOUT
112-BIT COMPLETE MATRIX MODE REGISTER 11 OUTPUT ADDRESS DECODE 7 MODE 112
112 1 AOUT UPDATE EN 7 112-BIT PARALLEL LATCH 112 SWITCH DECODE 512 SWITCH MATRIX 16 OUTPUT ENABLE
Figure 2. Serial Interface Block Diagram
SCLK is the serial-data clock which clocks data into the data input registers (Figure 3). Data at DIN is loaded in at each falling edge of SCLK. DOUT is the data shifted out of the 112-bit Complete Matrix Mode register (Mode = 1). DIN passes directly to DOUT when in Individual Output Address Mode (Mode = 0). The falling edge of UPDATE latches the data and programs the matrix. When using Individual Output Address Mode, the address recognition output AOUT drives low when control-word bits D14 to D11 match the address programming inputs (A3-A0) and UPDATE is low (Table 1). Table 1 is the operation truth table.
Mode. These two distinct programming modes are selected by toggling a single MODE pin high or low. Both modes operate with the same physical board layout. This flexibility allows initial programming of the IC by daisy-chaining and sending one long data word while still being able to immediately address and update individual outputs in the matrix. Individual Output Address Mode (MODE = 0) Drive MODE to logic low to select Mode 0. Individual outputs are programmed via the serial interface with a single 16-bit control word. The control word consists of a don't care MSB, the chip address bits, output address bits, an output enable/disable bit, an output gain-set bit, and input address bits (Table 2 through Table 6, and Figure 2).
Programming the Matrix
The MAX4358 offers two programming modes: Individual Output Address Mode and Complete Matrix
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31
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Table 2. 16-Bit Serial Control Word Bit Assignments (Mode 0: Individual Output Address Mode)
BIT 15 (MSB) 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 (LSB) NAME X IC Address A3 IC Address A2 IC Address A1 IC Address A0 Output Address B3 Output Address B2 Output Address B1 Output Address B0 Output Enable Gain Set Input Address 4 Input Address 3 Input Address 2 Input Address 1 Input Address 0 LSB of input channel select address LSB of output buffer address Enable bit for output, 0 = disable, 1 = enable. Gain Select for output buffer, 0 = gain of +1V/V, 1 = gain of +2V/V. MSB of input channel select address LSB of selected chip address MSB of output buffer address Don't Care MSB of selected chip address FUNCTION
In Mode 0, data at DIN passes directly to DOUT through the data routing gate (Figure 3). In this configuration, the 16-bit control word is simultaneously sent to all chips in an array of up to 16 addresses.
On-Screen-Display (OSD) Fast MUX
The MAX4358 features an asynchronous dedicated 2:1 Mux for each output buffer amplifier. Fast 40ns switching times enable pixel switching for on-screen-display (OSD) information such as text or other picture-in-picture signals (Figure 1). OSDFILL_ inputs are buffered analog inputs connected to each dedicated OSD Mux. Drive the dedicated OSDKEY_ digital input to switch between the programmed IN_ input from the crosspoint switch matrix and the OSDFILL_. A logic low on OSDKEYi routes the analog signal at OSDFILLi to the OUTi output buffer. OSDKEY_ control does not affect the crosspoint switch matrix programming or the output-buffer enable/disable or gain-set programming.
Complete Matrix Mode (MODE = 1)
Drive MODE to logic high to select Mode 1. A single 112-bit control word, consisting of sixteen 7-bit control words, programs all outputs. The 112-bit control word's first 7-bit control word (MSBs) programs output 15, and the last 7-bit control word (LSBs) programs output 0 (Table 7 and Figures 4 and 5). Data clocked into the 112-bit complete matrix mode register is latched on the falling edge of UPDATE, and the outputs are immediately updated. Initialization String Complete Matrix Mode (Mode = 1) is convenient for programming the matrix at power-up. In a large matrix consisting of many MAX4358s, all the devices can be programmed by sending a single bit stream equal to n x 112 bits where n is the number of MAX4358 devices on the bus. The first 112-bit data word programs the last in-line MAX4358 (see Matrix Programming under the Applications Information section).
RESET
The MAX4358 features an asynchronous bidirectional RESET with an internal 20k pullup resistor to VDD. When RESET is pulled low either by internal circuitry, or driven externally, the analog output buffers are latched into a high-impedance state. After RESET is released, the output buffers remain disabled. The outputs may be enabled by sending a new 112-bit data word or a 16-bit individual output address word. A reset is initiated from any of three sources. RESET can be driven low by external circuitry to initiate a reset, or RESET can be pulled low by internal circuitry during power-up (poweron-reset) or thermal shutdown.
32
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
16-BIT INDIVIDUAL OUTPUT ADDRESS MODE: FIRST BIT IS A DON'T CARE BIT, LAST 15 BITS CLOCKED INTO DIN WHEN MODE = 0, CREATES ADDRESS WORD; IC ADDRESS A3-A0 IS COMPARED TO DIN14-DIN11 WHEN UPDATE IS LOW; IF EQUAL, ADDRESSED OUTPUT IS UPDATED
UPDATE tSuMd MODE tHdMd
SCLK
DIN INPUT ADDRESS 4 (MSB) = 1 INPUT ADDRESS 0 (LSB) = 0 GAIN SET = +1V/V INPUT ADDRESS 3 = 0 INPUT ADDRESS 2 = 0 INPUT ADDRESS 1 = 0 OUTPUT ADDRESS B3 OUTPUT ADDRESS B2 OUTPUT ADDRESS B1 OUTPUT ADDRESS B0 OUTPUT ENABLE IC ADDRESS A3 IC ADDRESS A2 IC ADDRESS A1 IC ADDRESS A0 DON'T CARE X
IC ADDRESS = 2
OUTPUT ADDRESS = 9
OUTPUT (i) ENABLED, AV = +1V/V, CONNECTED TO INPUT 16
EXAMPLE OF 16-BIT SERIAL CONTROL WORD FOR OUTPUT CONTROL IN INDIVIDUAL OUTPUT ADDRESS MODE
Figure 3. Mode 0, Individual Output Address Mode Timing and Programming Example
Since driving RESET low only clears the output-bufferenable bit in the matrix control latches, RESET can be used to disable all outputs simultaneously. If no new data has been loaded into the 112-bit complete matrix mode register, a single UPDATE restores the previous matrix control settings.
Reset vs. RESET Capacitance graph in Typical Operating Characteristics).
Thermal Shutdown
The MAX4358 features thermal shutdown protection with temperature hysteresis. When the die temperature exceeds 150C, the MAX4358 pulls RESET low, disabling the output buffer. When the die cools by 20C, the RESET pulldown is deasserted, and output buffers remain disabled until the device is programmed again.
Power-On-Reset
The power-on-reset ensures all output buffers are in a disabled state when power is initially applied. A VDD voltage comparator generates the power-on-reset. When the voltage at VDD is less than 2.5V, the poweron-reset comparator pulls RESET low via internal circuitry. As the digital-supply voltage ramps up crossing 2.5V, the MAX4358 holds RESET low for 40ns (typ). Connecting a small capacitor from RESET to DGND extends the power-on-reset delay. (see the Power-On-
Applications Information
Building Large Video-Switching Systems
The MAX4358 can be easily used to create larger switching matrices. The number of ICs required to implement the matrix is a function of the number of input channels, the number of outputs required, and whether the array needs to be nonblocking or not.
______________________________________________________________________________________
33
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
tMnLCk SCLK tMnHCk
tSuDi DIN
tHdDi
tSuHUd tPdDo
tMnLUd
UPDATE
DOUT
SCLK EXAMPLE OF 7-BIT SERIAL CONTROL WORD FOR OUTPUT CONTROL DIN
NEXT CONTROL WORD
INPUT ADDRESS 4 (MSB) = 1
Figure 4. 7-Bit Control Word and Programming Example (Mode 1: Complete Matrix Mode)
UPDATE
1 0 1 7-BIT CONTROL WORD 0
MODE
DIN
OUT2
OUT1
OUT0 TIME
MOST SIGNIFICANT BITS OF THE 7-BIT CONTROL WORD ARE SHIFTED IN FIRST; I.E. OUT15, THEN OUT14, ETC. LAST 7 BITS SHIFTED IN PRIOR TO UPDATE FALLING EDGE PROGRAM OUT0.
Figure 5. Mode 1: Complete Matrix Mode Programming 34 ______________________________________________________________________________________
INPUT ADDRESS 0 (LSB) = 0
INPUT ADDRESS 3 = 1
INPUT ADDRESS 2 = 1
INPUT ADDRESS 1 = 0
ENABLE OUTPUT
GAIN SET = +1V/V
OUTPUT (i) ENABLED, AV = +1V/V, CONNECTED TO INPUT 28
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Table 3. Chip Address Programming for 16-Bit Control Word (Mode 0: Individual Output Address Mode)
IC ADDRESS BIT A3 (MSB) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 A2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 A1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 A0 (LSB) 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Chip Address (Hex) 0h 1h 2h 3h 4h 5h 6h 7h 8h 9h Ah Bh Ch Dh Eh Fh ADDRESS Chip Address (Decimal) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Table 4. Chip Address A3-A0 Pin Programming
PIN A3 DGND DGND DGND DGND DGND DGND DGND DGND VDD VDD VDD VDD VDD VDD VDD VDD A2 DGND DGND DGND DGND VDD VDD VDD VDD DGND DGND DGND DGND VDD VDD VDD VDD A1 DGND DGND VDD VDD DGND DGND VDD VDD DGND DGND VDD VDD DGND DGND VDD VDD A0 DGND VDD DGND VDD DGND VDD DGND VDD DGND VDD DGND VDD DGND VDD DGND VDD ADDRESS Chip Address (Hex) 0h 1h 2h 3h 4h 5h 6h 7h 8h 9h Ah Bh Ch Dh Eh Fh Chip Address (Decimal) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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35
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Table 5. Output Selection Programming
OUTPUT ADDRESS BIT B3 (MSB) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 B1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 B0 (LSB) 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 SELECTED OUTPUT 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
INPUTS (0-31)
32 16 IN MAX4358 OUT
32 16 IN MAX4358 OUT
INPUTS (32-63)
32 16 IN MAX4358 OUT
32 16 IN MAX4358 OUT
INPUTS (64-95)
32 16 MAX4358 IN OUT
32 16 MAX4358 IN OUT
INPUTS (96-127)
32 16 IN MAX4358 OUT
32 16 IN MAX4358 OUT
The most straightforward technique for implementing nonblocking matrices is to arrange the building blocks in a grid. The inputs connect to each vertical bank of devices in parallel with the other banks. The outputs of each building block in a vertical column connect together in a wired-OR configuration. Figure 6.shows a 128-input, 32-output, nonblocking array using eight MAX4358 crosspoint devices. The wire-OR connection of the outputs shown in the diagram is possible because the outputs of the IC devices can be placed in a disabled, or high-impedance-output state. This disable state of the output buffers is designed for a maximum impedance vs. frequency while maintaining a low output capacitance. These characteristics minimize the adverse loading effects from the disabled outputs. Larger arrays are constructed by extending this connection technique to more devices.
Driving a Capacitive Load
OUTPUTS (0-15) OUTPUTS (16-31)
Figure 6. 128 x 32 Nonblocking Matrix Using 32 x 16 Crosspoint Devices 36
Figure 6 shows an implementation requiring many outputs to be wired together. This creates a situation where each output buffer sees not only the normal load impedance, but also the disabled impedance of all the other outputs. This impedance has a resistive and a capacitive component. The resistive components reduce the total effective load for the driving output.
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Table 6. Input Selection Programming
INPUTS (0-31) 32 16 IN MAX4358 OUT
INPUT ADDRESS BIT B4 (MSB) 0
16 IN 16 IN
B3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
B2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
B1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
B0 (LSB) 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SELECTED INPUT 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
INPUTS (32-63))
32 16 IN MAX4358 OUT
0
16 MAX4358 OUT OUTPUTS (0-15)
0 0 0 0 0 0 0 0
INPUTS (64-95)
32 16 IN MAX4358 OUT
INPUTS (96-127)
32 16 IN MAX4358 OUT
Figure 7. 128 x 16 Nonblocking Matrix with Reduced Capacitive Loading
OPTIMAL ISOLATION RESISTANCE vs. CAPACITIVE LOAD
30 25 20 15 10 5 0 0 100 200 300 400 500 CAPACITIVE LOAD (pF)
0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Figure 8. Optimal Isolation Resistor vs. Capacitive Load
Total capacitance is the sum of the capacitance of all the disabled outputs and is a function of the size of the matrix. Also, as the size of the matrix increases, the length of the PC board traces increases, adding more capacitance. The output buffers have been designed to drive more than 30pF of capacitance while still maintaining a good AC response. Depending on the size of the array, the capacitance seen by the output can exceed this amount. There are several ways to improve the situation. The first is to use more building-block crosspoint devices to reduce the number of outputs that need to be wired together (see Figure 7).
ISOLATION RESISTANCE ()
In Figure 7, the additional devices are placed in a second bank to multiplex the signals. This reduces the number of wired-OR connections. Another solution is to put a small resistor in series with the output before the capacitive load to limit excessive ringing and oscillations. Figure 8 shows the graph of the Optimal Isolation
37
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Table 7. 7-Bit Serial Control Word Bit Assignments (Mode 1: Complete Matrix Mode Programming)
BIT 6 (MSB) 5 4 3 2 1 0 (LSB) NAME Output Enable Gain Set Input Address 4 Input Address 3 Input Address 2 Input Address 1 Input Address 0 LSB of input channel select address FUNCTION Enable bit for output, 0 = disable, 1 = enable. Gain Select for output buffer, 0 = gain of +1V/V, 1 = gain of +2V/V. MSB of input channel select address.
COMPUTER CONTROL CAMERAS IN0 IN1 SYNC0 OUT0 MONITOR SYNC1 IN31 OUT1 MONITOR SYNC0 OSDFILL0 OSD OSDKEY0 SYNC1 OSDFILL1 OSD OSDKEY1 OSDFILL15 OSDKEY15 MEMORY OUT15 MONITOR MAX4358 SYNC15
higher frequencies, offsetting the rolloff from the parasitic capacitance. Another solution is to add a smallvalue inductor to the output.
On-Screen Display Insertion
The MAX4358 facilitates the insertion of on-screen graphics and characters by using the built-in fast 2:1 multiplexer associated with each of the 16 outputs (Functional Diagram). This mux switches in 40ns, much less than the width of a single pixel. Access to this fast mux is through 16 dedicated OSDFILL analog inputs and 16 dedicated OSDKEY input controls. OSD timing is externally controlled and applied to the OSDKEY inputs (Figure 1). Pulling OSDKEYi low switches the signal on the OSDFILLi input to the OUTi output. When the OSDKEY signal is logic high, the signal at IN_ is switched to the output. This switching action is repeated on a pixel-by-pixel basis for each scan line. In this way any synchronized video signal, including arbitrary graphics, can be inserted on the screen (Figure 9). This technique for inserting OSD display information is an improvement over the way it has traditionally been done. Other OSD techniques require an external fast mux and a buffer for each output.
SYNC15
OSD
Figure 9. Improved Implementation of On-Screen Display
Resistor vs. Capacitive Load. A lowpass filter is created from the series resistor and parasitic capacitance to ground. A single R-C do not affect the performance at video frequencies, but in a very large system there may be many R-Cs cascaded in series. The cumulative effect is a slight rolling off of the high frequencies causing a "softening" of the picture. There are two solutions to achieve higher performance. One way is to design the PC board traces associated with the outputs such that they exhibit some inductance. By routing the traces in a repeating "S" configuration, the traces that are nearest each other will exhibit a mutual inductance increasing the total inductance. This series inductance causes the amplitude response to increase or peak at
Crosstalk and Board Routing Issues
Improper signal routing causes performance problems. The MAX4358 has a typical crosstalk rejection of -62dB at 6MHz. A bad PC board layout degrades the crosstalk rejection by 20dB or more. To achieve the best crosstalk performance: 1. Place ground isolation between long critical signal PC board trace runs. These traces act as a shield to potential interfering signals. Crosstalk can be degraded from parallel traces as well as directly above and below on adjoining PC board layers.
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
CHIP ADDRESS = 0 CHIP ADDRESS = 1 CHIP ADDRESS = 2
DIN HOST CONTROLLER
DOUT
DIN
DOUT
DIN
DOUT
NEXT DEVICE
MAX4358 A3 SCLK CE MODE UPDATE A2 A1 A0
MAX4358 A3 SCLK CE MODE UPDATE A2 A1 A0 VDD
MAX4358 A3 SCLK CE MODE UPDATE A2 A1 A0
VDD
VIRTUAL SERIAL BUS (MODE 0: INDIVIDUAL OUTPUT ADDRESS MODE)
Figure 10. Matrix Mode Programming
2.Maintain controlled-impedance traces. Design as many of the PC board traces as possible to be 75 transmission lines. This lowers the impedance of the traces reducing a potential source of crosstalk. More power will be dissipated due to the output buffer driving a lower impedance. 3.Minimize ground current interaction by using a good ground plane strategy. In addition to crosstalk, another key issue of concern is isolation. Isolation is the rejection of undesirable feedthrough from input-to-output with the output disabled. The MAX4358 achieves a -110dB isolation at 6MHz by selecting the pinout configuration such that the inputs and outputs are on opposite sides of the package. Coupling through the power supply is a function of the quality and location of the supply bypassing. Use appropriate low-impedance components and locate them as close as possible to the IC. Avoid routing the inputs near the outputs.
Power in Large Systems
The MAX4358 has been designed to operate with split
supplies down to 3V or a single supply of +5V. Operating at the minimum supply voltages reduces the power dissipation by as much 40% to 50%. At 5V, the MAX4358 consumes 195mW (0.38mW/point).
Driving a PC-Board Interconnect or Cable (AV = +1V/V or +2V/V)
The MAX4358 output buffers can be programmed to either AV = +1V/V or +2V/V. The +1V/V configuration is typically used when driving short lengths (less than 3cm), high impedance, "local" PC board traces. To drive a cable or a 75 transmission line trace, program the gain of the output buffer to +2V/V and place a 75 resistor in series with the output. The series termination resistor and the 75 load impedance act as a voltage divider that divides the video signal in half. Set the gain to +2V/V to transmit a standard 1V video signal down a cable. The series 75 resistor is called the backmatch, reverse termination, or series termination. This 75 resistor reduces reflections and provides isolation, increasing the output capacitive driving capability.
Power-Supply Bypassing
The MAX4358 operates from a single +5V or dual 3V to 5V supplies. For single-supply operation, connect all VEE pins to ground and bypass all power-supply pins with a 0.1F capacitor to ground. For dual-supply systems, bypass all supply pins to ground with 0.1F capacitors.
Matrix Programming
The MAX4358's unique digital interface simplifies programming multiple MAX4358 devices in an array. Multiple devices are connected with DOUT of the first
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39
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
+5V
VCC OUT0 IN0 IN1 OUT15 IN31 OUT1 1VP-P
+5V 2VP-P U2 75 220F 75 MONITOR 0 Z0 = 75
500 500
MAX4358
U2 = MAX4450 OR 1/4 MAX4383
AGND
VEE
Figure 11. Typical Single +5V Supply Application
device connecting to DIN of the second device, and so on (Figure 11). Two distinct programming modes, Individual Output Address Mode (MODE = 0) and Complete Matrix Mode (MODE = 1) are selected by toggling a single MODE control pin high or low. Both modes operate with the same physical board layout. This allows initial programming of the IC by daisychaining and sending one long data word while still being able to immediately address and update individual locations in the matrix.
input to be connected to that output. In this method, the matrix is programmed one output at a time. Complete Matrix Mode (Mode = 1)
In Complete Matrix Mode, the devices are connected in
Individual Output Address Mode (Mode = 0)
In Individual Output Address Mode, the devices are connected in a serial-bus configuration, with the data routing gate (Figure 3) connecting DIN to DOUT, making each device a virtual node on the serial bus. A single 16-bit control word is sent to all devices simultaneously. Only the device with the corresponding chip address responds to the programming word and updates its output. In this mode the chip address is set via hardware pin strapping of A3-A0. The host communicates with the device by sending a 16-bit word consisting of 1 don't care bit, 4-chip address bits, 11 bits of data to make the word exactly two bytes in length. The 11 data bits are broken down into 4 bits to select the output to be programmed, 1 bit to set the output enable, 1 bit to set gain and 5 bits to the select the
40
a daisy-chain fashion where n 5 112 bits are sent to program the entire matrix, where n = the number of MAX4358 devices connected in series. The data word is structured such that the first bit is the LSB of the last device in the chain and the last data bit is the MSB of the first device in the chain. The total length of the data word is equal to the number of crosspoint devices to be programmed in series times 112 bits per crosspoint device. This programming method is most often used at start-up to initially configure the switching matrix.
Operating at +5V Single-Supply with AV = +1V/V or +2V/V
The MAX4358 guarantees operation with a single +5V supply and a gain of +1V/V for standard video-input signals (1Vp-p). To implement a complete video matrix switching system capable of gain = +2V/V while operating with a +5V single supply, combine the MAX4358 crosspoint switch with Maxim's low-cost, high-performance video amplifiers optimized for single +5V supply operation (Figure 11). The MAX4450 single and MAX4451 dual op amps are unity-gain-stable devices that combine high-speed performance with Rail-to-
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32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Rail(R) outputs. The common-mode input voltage range extends beyond the negative power-supply rail (ground in single-supply applications). The MAX4450 is available in the ultra-small 5-pin SC70 package, while the MAX4451 is available in a space-saving 8-pin SOT23 package. The MAX4383 is a quad op amp available in a 14-pin TSSOP package. The MAX4380/MAX4381/ MAX4382 and MAX4384 offer individual output-highimpedance disable making these amplifiers suitable for wired-OR connections.
Chip Information
TRANSISTOR COUNT: 44,890 PROCESS: BiCMOS
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc. ______________________________________________________________________________________ 41
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers MAX4358
Pin Configuration
115 OSDFILL10 114 OSDFILL11 113 OSDFILL12 112 OSDFILL13 111 OSDFILL14 125 OSDFILL0 124 OSDFILL1 123 OSDFILL2 122 OSDFILL3 121 OSDFILL4 120 OSDFILL5 119 OSDFILL6 118 OSDFILL7 117 OSDFILL8 116 OSDFILL9
TOP VIEW
142 AGND 140 AGND 138 AGND 136 AGND 134 AGND 132 AGND 130 AGND 128 AGND 126 AGND 144 VEE 143 IN8 141 IN7 139 IN6 137 IN5 135 IN4 133 IN3 131 IN2 129 IN1 127 IN0
110 OSDFILL15
109 AGND 108 AGND 107 AGND 106 VCC 105 OUT0 104 VEE 103 OUT1 102 VCC 101 OUT2 100 VEE 99 OUT3 98 VCC 97 OUT4 96 VEE 95 OUT5 94 VCC 93 OUT6 92 VEE 91 OUT7 90 VCC 89 OUT8 88 VEE 87 OUT9 86 VCC 85 OUT10 84 VEE 83 OUT11 82 VCC 81 OUT12 80 VEE 79 OUT13 78 VCC 77 OUT14 76 VEE 75 OUT15 74 VCC 73 AGND AGND 72
IN9 AGND IN10 AGND IN11 AGND IN12 AGND IN13
1 2 3 4 5 6 7 8 9
AGND 10 IN14 11 AGND 12 IN15 13 AGND 14 IN16 15 AGND 16 IN17 17 AGND 18 IN18 19 AGND 20 IN19 21 AGND 22 IN20 23 AGND 24 IN21 25 AGND 26 IN22 27 AGND 28 IN23 29 AGND 30 IN24 31 AGND 32 IN25 33 AGND 34 IN26 35 VCC 36
MAX4358
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70 OSDKEY0
IN27
IN28
IN29
IN30
IN31
RESET
A3
A2
A1
A0
CE
DGND
SCLK
MODE
UPDATE
DOUT
AOUT
OSDKEY9
OSDKEY8
OSDKEY7
OSDKEY6
OSDKEY5
OSDKEY4
OSDKEY3
OSDKEY2
OSDKEY15
OSDKEY14
OSDKEY13
OSDKEY12
OSDKEY11
TQFP
42
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OSDKEY10
OSDKEY1
VDD
DIN
71
32 x 16 Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers
Package Information
TQFP20x20x1.0mm.EPS
MAX4358
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 43 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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