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ISL54415, ISL54416, ISL54417
Data Sheet June 27, 2006 FN6318.1
Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches with Negative Signal Capability
The Intersil ISL54415, ISL54416, ISL54417 dual SPDT (Single Pole/Double Throw) switches combine low distortion audio/video and accurate USB 2.0 Full Speed data signal switching in the same low voltage device. When operated with a 2.5V to 3.6V single supply these analog switches allow audio/video signal swings below-ground, allowing the use of a common USB and audio/video connector in digital cameras, camcorders and other portable battery powered Personal Media Player devices. The ISL54415 and ISL54416 incorporate circuitry for detection of the USB VBUS voltage, which is used to switch between the audio/video and USB signal source in the portable device. In addition, the ISL54415 includes circuitry for generation of a VTERM voltage of 3.3V for use with USB speed setting pull-up resistor. The ISL54415, ISL54416, ISL54417 are available in a tiny 10Ld 2.1mm x 1.6mm ultra-thin TQFN package. They operate over a temperature range of -40 to +85C.
Features
* Low Distortion Negative Signal Capability * Detection of VBUS Voltage on USB Cable (ISL54415 and ISL54416) * Generation of VTERM Voltage for USB D+/D- Pull-up Resistor (ISL54415) * Low Distortion Mono Audio Signal - THD+N at 12mW into 32 Load . . . . . . . . . . . <0.007% * Low Distortion Color Video Signal - Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04% - Differential Phase. . . . . . . . . . . . . . . . . . . . . . . . . . 0.03 * Cross-talk (4MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . -60dB * 1.8V Logic Compatible (ISL54417) * Single Supply Operation (VDD) - ISL54415 and ISL54416 . . . . . . . . . . . . . . 2.5V to 3.6V - ISL54417 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V * Available in Ultra-thin TQFN Package * Pb-Free Plus Anneal Available (RoHS Compliant)
Related Literature
* Technical Brief TB363 "Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)" * Application Note AN557 "Recommended Test Procedures for Analog Switches"
Applications
* Digital Camera and Camcorders * Video MP3 and other Personal Media Players * Cellular/Mobile Phones * PDA's * Audio/Video/USB Switching
Application Block Diagram
VDD VTERM
ISL54415
USB AND AUDIO/VIDEO JACK VBUS NO1 COM1 NO2 DD+ USB FULL-SPEED TRANSCEIVER
COM2
NC1 NC2
NTSC OR PAL VIDEO AUDIO
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
ISL54415, ISL54416, ISL54417 Pinouts
(Note 1) ISL54415 (TQFN) TOP VIEW VTERM
10 1 2
5.3k POWER/LOGIC CONTROL 2M
VDD VBUS COM1 COM2
9 8 7
50k
NO1 NO2
3 4
NC1
6
50k
NC2
5
GND ISL54416 (TQFN) TOP VIEW N.C,
10 1 2
POWER/LOGIC CONTROL
VDD VBUS COM1 COM2
9 8 7
50k
NO1 NO2
2M
3 4
NC1
6
50k
NC2
5
GND ISL54417 ( TQFN) TOP VIEW IN1
10
VDD IN2
1 2
LOGIC CONTROL
9 8 7
50k
NO1 NO2
COM1 COM2
3 4
NC1 NC2
6
50k
5 GND
NOTE: 1. ISL54415, ISL54416 Switches Shown for VBUS not present (or idle). ISL54417 Switches Shown for Logic "0" Input.
2
FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Truth Table
ISL54417 IN 0 1 NCx ON OFF NOx OFF ON VDD 0 0 1 1 ISL54416 VBUS 0 1 NCx ON OFF NOx OFF ON VBUS 0 1 0 1
Truth Table
ISL54415 NCx ON OFF ON OFF NOx OFF ON OFF ON VTERM Open Open Open 3.0V to 4.0V
Logic "0" 0.5V. Logic "1" 1.4V, with VDD between 2.7V and 3.6V
Truth Table
VDD: Logic "0" when <2.4V, Logic "1" when 2.5V VBUS: Logic "0" when VDD + 0.2V, Logic "1" when VDD + 0.8V
Logic "0" when VDD + 0.2V, Logic "1" when VDD + 0.8V
Pin Descriptions
ISL54415 NO. 1 NAME VDD FUNCTION Power Supply (Audio/Video Switches) Control Input for VTERM Digital Control Input Power Supply (USB Switches) Voice/Video and USB Common Pin Voice/Video and USB Common Pin Ground Connection Audio or Video Input Audio or Video Input USB Differential Input USB Differential Input USB VTERM Voltage, Outputs 3.3V to 4.0V when VBUS = 4.4V to 5.25V and VDD = logic "1" and connected to Upstream USB Termination. NAME VDD ISL54416 FUNCTION Power Supply (Audio/Video Switches) Digital Control Input Power Supply (USB Switches) Voice/Video and USB Common Pin Voice/Video and USB Common Pin Ground Connection Audio or Video Input Audio or Video Input USB Differential Input USB Differential Input No Connect NAME VDD ISL54417 FUNCTION System Power Supply Input
2 3 4 5 6 7 8 9 10
VBUS COM1 COM2 GND NC2 NC1 NO2 NO1 VTERM
VBUS COM1 COM2 GND NC2 NC1 NO2 NO1 N.C.
IN2 COM1 COM2 GND NC2 NC1 NO2 NO1 IN1
Digital Control Input Voice/Video and Data Common Pin Voice/Video and Data Common Pin Ground Connection Audio or Video Input Audio or Video Input Data Differential Input Data Differential Input Digital Control Input
Ordering Information
PART NUMBER (Note) ISL54415IRUZ-T ISL54416IRUZ-T ISL54417IRUZ-T PART MARKING FD FE FF TEMP. RANGE (C) -40 to 85 -40 to 85 -40 to 85 PACKAGE (Pb-Free) 10 Ld 2.1 x 1.6mm TQFN Tape and Reel 10 Ld 2.1 x 1.6mm TQFN Tape and Reel 10 Ld 2.1 x 1.6mm TQFN Tape and Reel PKG. DWG. # L10.2.1x1.6A L10.2.1x1.6A L10.2.1x1.6A
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate or NiPdAu termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3
FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417
Absolute Maximum Ratings
VDD to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.0V VBUS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.0V Input Voltage (ISL54415 and ISL54416) NCx (Note 2) . . . . . . . . . . . . . . . . . . . . . . . - 2V to ((VDD) + 0.3V) NOx (Note 2) . . . . . . . . . . . . . . . . . . . . . . -2V to ((VBUS) + 0.3V) Input Voltage (ISL54417) NOx, NCx (Note 2) . . . . . . . . . . . . . . . . . . . - 2V to ((VDD) + 0.3V) IN (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((VDD) + 0.3V) Output Voltage (ISL54415 and ISL54416) COMx (Note 2) Audio/Video Mode. . . . . . . -2V to ((VDD) + 0.3V) COMx (Note 2) USB Mode. . . . . . . . . . . . -2V to ((VBUS) + 0.3V) Output Voltage (ISL54417) COMx (Note 2) . . . . . . . . . . . . . . . . . . . . . . -2V to ((VDD) + 0.3V) Continuous Current (NCx, or COMx) . . . . . . . . . . . . . . . . . . 300mA Peak Current (NCx, or COMx) (Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . 500mA Continuous Current (NOx) . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA Peak Current (NOx) (Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . 100mA ESD Rating: HBM COMx, VBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>4kV HBM All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>4kV MM COMx, VBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>500V MM All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>300V CDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>1kV
Thermal Information
Thermal Resistance (Typical, Note 3) JA (C/W) 10 Ld TQFN Package . . . . . . . . . . . . . . . . . . . . . . 96 Maximum Junction Temperature (Plastic Package). . . . . . . . 150C Maximum Storage Temperature Range . . . . . . . . . . . . . -65C to 150C
Operating Conditions
Temperature Range ISL5441XIRUZ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to 85C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES: 2. Signals on VBUS, NOx, NCx, COMx, INx, exceeding VDD or GND by specified amount are clamped. Limit forward current through clamp to maximum current ratings. 3. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications - 2.7V to 5.5V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,
VINH = 1.4V, VINL = 0.5V (Notes 4, 6), Unless Otherwise Specified PARAMETER ANALOG SWITCH CHARACTERISTICS Audio/Video Switches (NC1, NC2) Analog Signal Range, VANALOG ON Resistance, RON RON Matching Between Channels, RON RON Flatness, RFLAT(ON) Discharge Pull-down Resistance, RNC1, RNC2 VDD = 3.0V, VBUS = 3.2V or VIN = 0.5V, ICOM = 40mA, VNCx = -0.85V to 0.85V, (Figure 3) VDD = 3.0V, VBUS = 3.2V or VIN = 0.5V, ICOM = 40mA, VNCx = Voltage at max RON over signal range of -0.85V to 0.85V, (Note 9) VDD = 3.0V, VBUS = 3.2V or VIN = 0.5V, ICOM = 40mA, VNCx = -0.85V to 0.85V, (Note 7) VDD = 3.6V, VBUS = 0V or VIN = 0.5V, VCOMx = -0.85V, 0.85V, VNCx = -0.85V, 0.85V, VNOx = floating, measure current through the discharge pull-down resistor and calculate resistance value. Full 25 25 Full 25 Full 25 -1.5 30 1 0.02 0.002 50 1.5 0.12 0.15 0.080 0.095 70 V k TEST CONDITIONS TEMP (C) (NOTE 5) MIN TYP (NOTE 5) MAX UNITS
USB Switches (NO1, NO2) Analog Signal Range, VANALOG ON Resistance, RON (ISL54415 and ISL54416 Only) VDD = 3.6V, VBUS = 4.4V, ICOM = 40mA, VNOx = 0V to VBUS, (See Figure 3) Full 25 Full 25 Full -1.5 5 0.2 VBUS 6 6.5 0.4 0.45 V
RON Matching Between Channels, VDD = 3.6V, VBUS = 4.4V, ICOM = 40mA, VNOx = Voltage RON (ISL54415 and ISL54416 Only) at max RON, (Note 9)
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FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417
Electrical Specifications - 2.7V to 5.5V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,
VINH = 1.4V, VINL = 0.5V (Notes 4, 6), Unless Otherwise Specified (Continued) PARAMETER TEST CONDITIONS TEMP (C) 25 Full 25 Full 25 Full 25 Full 25 Full 25 Full (NOTE 5) MIN -5 -15 -30 -35 TYP 0.8 7.5 0.2 1.0 1.5 5 (NOTE 5) MAX UNITS 1.9 2.5 9 9.5 0.4 0.45 1.9 2.5 5 15 30 35 A A A A
RON Flatness, RFLAT(ON) (ISL54415 VDD = 3.6V, VBUS = 4.4V, ICOM = 40mA, VNOx = 0V to and ISL54416 Only) VBUS, (Note 7) ON Resistance, RON (ISL54417 Only) RON Matching Between Channels, RON (ISL54417 Only) VDD = 3.0V, VINx = 1.4V, ICOM = 40mA, VNOx = 0V to 3.0V, (See Figure 3) VDD = 3.0V, VINx = 1.4V, ICOM = 40mA, VNOx = Voltage at max RON, (Note 9)
RON Flatness, RFLAT(ON) (ISL54417 VDD = 3.0V, VIN = 1.4V, ICOM = 40mA, VNOx = 0V to 3.0V, Only) (Note 7) OFF Leakage Current, INOx(OFF) ON Leakage Current, INOx(ON) DYNAMIC CHARACTERISTICS Turn-ON Time, tON (ISL54417 Only) Turn-OFF Time, tOFF (ISL54417 Only) Break-Before-Make Time Delay, tD (ISL54417 Only) Skew, tSKEW Rise/Fall Time Mismatch, tM Total Jitter, tJ Propagation Delay, tPD Crosstalk (Channel-to-Channel), NC2 to COM1, NC1 to COM2 Differential Gain Differential Phase Total Harmonic Distortion NCx (Audio/Video) Switch -3dB Bandwidth NCx (Audio/Video) Switch -3dB Bandwidth NOx (USB) Switch -3dB Bandwidth NOx OFF Capacitance, CNOx(OFF) NCx OFF Capacitance, CNCx(OFF) VDD = 2.7V, VNOx or VNCx = 1.5V, RL = 300, CL = 35pF, (See Figure 1) VDD = 2.7V, VNOx or VNCx = 1.5V, RL = 300, CL = 35pF, (See Figure 1) VDD = 3.3V, VNOx or VNCx = 1.5V, RL = 300, CL = 35pF, (See Figure 2) VDD = 3.0V, VBUS = 3.8V, RL = 39, CL = 50pF, tR = tF = 12ns at 12Mbps, (Duty Cycle = 50%) (See Figure 7) VDD = 3.0V, VBUS = 3.8V, RL = 39, CL = 50pF, tR = tF = 12ns at 12Mbps, (Duty Cycle = 50%), (See Figure 6) VDD =3.0V, VBUS = 3.8V, RL = 39, CL = 50pF, tR = tF = 12ns at 12Mbps VDD = 3.0V, VBUS = 3.8V, RL = 39, CL = 50pF, (See Figure 7) RL = 75, f = 4MHz, VNCx = 300mVP-P, (See Figure 4 and Figure 17) VIN = 300mVP-P, VOFFSET = 0V to 0.7V, f = 3.58MHz and 4.43MHz, RL = 50, See Figure 15 and Figure 16) VIN = 300mVP-P, VOFFSET = 0V to 0.7V, f = 3.58MHz and 4.43MHz, RL = 50, See Figure 15 and Figure 16) f = 20Hz to 20kHz, VDD = 3.0V, VBUS = 3.2V or VIN = 0.5V, VNCx = 0.60VRMS, RL = 32, (See Figure 10) Signal = 8dBm, RL = 50, CL = 5pF, (See Figure 13) Signal = 8dBm, RL = 75, CL = 5pF, (See Figure 14) Signal = 18dBm, 1Vdc offset, RL = 50, CL = 5pF, (See Figure 13) f = 1MHz, VDD = 3.0V, VBUS = 3.2V or VIN = 0.5V, VNO or VNC = VCOM = 0V, (See Figure 5) f = 1MHz, VDD = 3.0V, VBUS = 3.8V or VIN = 1.4V, VNO or VNC = VCOM = 0V, (See Figure 5) VDD = 3.6V, VBUS = 0V or VIN = 0.5V, VCOMx = 0.5V, 0V, VNOx = 0V, 0.5V, VNCx = floating VDD = 3.6V, VBUS = 5.25V or VIN = 1.4V, VCOMx = 0.3V, 3.6V, VNOx = 0.3V, 3.6V, VNCx = floating
25 Full 25 Full Full 25 25 25 25 25 25 25 25 25 25 25 25 25 25
-
40 60 20 40 8 0.15 10 1.6 0.9 -60 0.04 0.03 0.007 394 264 239 10 13 46
-
ns ns ns ns ns ns % ns ns dB % % MHz MHz MHz pF pF pF
COMx ON Capacitance, CCOMx(ON) f = 1MHz, VDD = 3.0V, VBUS = 3.8V or VIN = 1.4V, VNO or VNC = VCOM = 0V, (See Figure 5)
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FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417
Electrical Specifications - 2.7V to 5.5V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,
VINH = 1.4V, VINL = 0.5V (Notes 4, 6), Unless Otherwise Specified (Continued) PARAMETER POWER SUPPLY CHARACTERISTICS Power Supply Range, VDD (ISL54415 and ISL54416 Only) Power Supply Range, VDD (ISL54417 Only) Positive Supply Current, IDD Audio/Video Mode (ISL54415 and ISL54416 Only) Positive Supply Current, IBUS USB Mode (ISL54415 and ISL54416 Only) Positive Supply Current, IDD (ISL54417 Only) Positive Supply Current, IDD (ISL54417 Only) Positive Supply Current, IDD (ISL54417 Only) VTERM Voltage, VVTERM (ISL54415 Only) VTERM Voltage, VVTERM (ISL54415 Only) DIGITAL INPUT CHARACTERISTICS VBUS Voltage Low, VBUSL (ISL54415 and ISL54416 Only) VBUS Voltage High, VBUSH (ISL54415 and ISL54416 Only) Input Voltage Low, VINL (ISL54417 Only) Input Voltage High, VINH (ISL54417 Only) Input Voltage Low, VINL (ISL54417 Only) Input Voltage High, VINH (ISL54417 Only) Input Current, IINH, IINL (ISL54417 Only) NOTES: 4. VIN = input voltage to perform proper function. 5. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. 6. Parts are 100% tested at +25C. Limits across the full temperature range are guaranteed by design and correlation. 7. Flatness is defined as the difference between maximum and minimum value of on-resistance over the specified analog signal range. 8. Guaranteed by design. 9. RON matching between channels is calculated by subtracting the channel with the highest max Ron value from the channel with lowest max RON value between NC1 and NC2 or between NO1 and NO2. VDD = 2.7V to 3.6V VDD = 2.7V to 3.6V VDD = 5.0V VDD = 5.0V VDD = 5.5V, VIN = 0V or VDD Full Full Full Full Full Full Full VDD + 0.8 1.4 2.3 0.1 VDD + 0.2 0.5 0.8 V V V V V V A VDD = 3.6V, VBUS = Float Full Full 25 Full VDD = 3.6V, VBUS = 5.25V 25 Full VDD = 5.5V, VIN = 0V VDD = 5.5V, VIN = 5.5V VDD = 5.5V, VIN = 2.85V VDD = 2.5V, VBUS = 4.4V, RTERM = 16.5k to Ground VDD = 2.0V, VBUS = 4.4V 25 Full 25 Full 25 Full 25 25 2.5 1.8 3.0V 0V 4.5 3.5 8 0.06 5.5 3.6 5.5 8 10 8 25 11 15 0.5 1 8 10 3.6V 0.5V V V A A A A A A A A A A V V TEST CONDITIONS TEMP (C) (NOTE 5) MIN TYP (NOTE 5) MAX UNITS
6
FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Test Circuits and Waveforms
VINH LOGIC INPUT 50% VINL tOFF SWITCH INPUT VNO 90% SWITCH OUTPUT 0V tON VOUT 90% CONTROL INPUT SWITCH INPUT NO or NC COM IN GND RL 300 CL 35pF VOUT tr < 20ns tf < 20ns VDD C
Logic input waveform is inverted for switches that have the opposite logic sense.
Repeat test for all switches. CL includes fixture and stray capacitance. RL V OUT = V (NO or NC) -----------------------------R L + R ( ON ) FIGURE 1B. TEST CIRCUIT
FIGURE 1A. MEASUREMENT POINTS
FIGURE 1. SWITCHING TIMES (ISL54417 ONLY)
VDD
C
LOGIC INPUT
VINH VINL
VNX
NO
COM
NC
VOUT RL 300 CL 35pF
IN LOGIC INPUT GND
SWITCH OUTPUT VOUT
90% 0V tD
Repeat test for all switches. CL includes fixture and stray capacitance. FIGURE 2B. TEST CIRCUIT
FIGURE 2A. MEASUREMENT POINTS
FIGURE 2. BREAK-BEFORE-MAKE TIME (ISL54417 ONLY)
VDD C
VDD C RON = V1/40mA
NOx or NCx
IN1 0V or VDD SIGNAL GENERATOR
NCx COMx
32
VNx 40mA V1
COMx
IN
VBUS or VIN
ANALYZER
COMx NCx
GND
RL
GND
N.C.
Repeat test for all switches. FIGURE 3. RON TEST CIRCUIT
Signal direction through switch is reversed, worst case values are recorded. Repeat test for all switches.
FIGURE 4. CROSSTALK TEST CIRCUIT
7
FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Test Circuits and Waveforms (Continued)
VDD C 1.3V< VCM < 2V
NOx or NCx
OUT+ IN IMPEDANCE ANALYZER
COMx
VBUS or VIN OUT-
VCM 10% tR
90%
90% 10% tF
GND tM = | tR -tF | min (tR or tF)
Repeat test for all switches.
FIGURE 5. CAPACITANCE TEST CIRCUIT FIGURE 6. RISE/FALL TIME MISMATCH TEST
tri 90% DIN+ DIN10% 50% tskew_i 90% 50% 10% tfi tro 90% OUT+ OUT10% 50% tskew_o 90% tf0 50% 10% DINDIN+ RS
VDD
C
COM2
NO2
OUT+ CL
RS
COM1
NO1
OUTCL
GND |tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals. |tfo - tfi| Delay Due to Switch for Falling Input and Falling Output Signals. |tskew_0| Change in Skew through the Switch for Output Signals. |tskew_i| Change in Skew through the Switch for Input Signals.
FIGURE 7A. MEASUREMENT POINTS FIGURE 7. SKEW TEST
FIGURE 7B. TEST CIRCUIT
8
FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Application Block Diagram
VDD ISL54415 USB AND AUDIO/VIDEO JACK VBUS DNO1 COM1 NO2 D+ VTERM
USB FULL-SPEED TRANSCEIVER
COM2
NC1 NC2
NTSC OR PAL VIDEO AUDIO
GND
Detailed Description
The ISL5441X family of devices are dual single pole/double throw (SPDT) analog switches that operate from a single power supply. They were designed to function as dual 2 to 1 multiplexers to select between USB differential data signals and mono Audio/Composite Video Broadcast System (CVBS). They come in tiny TQFN package for use in digital cameras, camcorders, video MP3 players, PDAs, cellphones, and other personal media players. All devices in this family consist of two 1 normally closed (NC) Audio/Video switches and two 5 normally open (NO) USB switches. The audio/video switches can accept signals that swing below ground. They were designed to pass ground reference audio or DC-restored with synch composite video signals with minimal distortion. The USB switches were designed to pass full-speed USB differential data signals with minimal edge and phase distortion. The ISL54415 and ISL54416 were specifically designed for digital cameras, camcorders, MP3 players, cellphones and other personal media player applications that need to combine the audio/video jacks and the USB data connector into a single shared connector, thereby saving space and component cost. A typical application block diagram of this functionality is shown above. The ISL54415 and ISL54416 incorporate circuitry for the detection of the USB VBUS voltage, which is used to switch between the audio/video drivers and USB transceiver of media player. The ISL54415 contains additional circuitry to generate the required USB VTERM of 3.3V for use with the USB speed setting pull-up resistor. The ISL54417 is an audio/video and data switch who's logic control is typical of a standard dual SPDT device. A detailed description of the two types of switches and of each part type in the ISL5441X family are provided in the following sections. The digital data transmission (USB, etc.)
and audio/video playback are intended to be mutally exclusive operations.
NC1 and NC2 Audio/Video Switches
The two NC (normally closed) audio/video switches (NC1, NC2) are 1 high bandwidth switches that can pass signals that swing below ground by as much as 1.5V. They were design to pass ground reference audio signals and DC-restored Composite Video Broadcast System (CVBS) including negative synchronizing pulse with minimal insertion loss and very low distortion and degradation. The -3dB bandwidth into 50 is 394MHz and into 75 is 264MHz. Crosstalk between NC1 and NC2 @ 4MHz is -60dB which allows composite video to be routed through one switch and mono-audio through the other switch with little interference. The recommended maximum signal range is from -1.5V to 1.5V. You can apply positive signals greater than 1.5V but the RON resistance of the switch increases rapidly above 1.5V. The signal should not be allowed to exceed the VDD rail or swing more negative than -1.5V. Over a signal range of 1V these switches have an extremely low RON flatness. They can pass a ground referenced audio signal with very low distortion (<0.007% THD+N) when delivering 12mW into a 32 headphone speaker load. See Figures 10 and 11 THD+N performance curves. Figures 8 and 9 show the vector scope plots of a standard NTSC color bar signal at both the input (Figure 8) and output (Figure 9) of the ISL54415. The plots show that except for a little attentuation, due to switch RON and test fixture cabling, there is virtually no degradation of the video waveform through the switch.
9
FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417
For the ISL54415 and ISL54416 parts the NC audio/video switches are active (turned ON) whenever the VBUS voltage is VDD + 0.2V. The VBUS pin is internally pulled low through a pull-down resistor allowing the VBUS pin to float. When the VBUS pin is floating the NC audio/video switches are ON. Note: Whenever the audio/video switches are ON the USB transceivers need to be in the high impedance state or static high or low state to keep from interfering with the audio/video transmission. For the ISL54417 part the NC1 audio/video switch is active (turned ON) whenever logic pin IN1 (pin 10) is LOW. The NC2 audio/video switch is active (turned ON) whenever the logic pin IN2 (pin 2) is LOW. Unlike the ISL54415 and ISL54416 parts were the two SPDT switches work in tandem, the ISL54417 gives you independent control over each SPDT switch.
FIGURE 8. VECTOR-SCOPE PLOT BEFORE SWITCH
NO1 and NO2 USB Switches
The two NO (normally open) USB switches (NO1, NO2) are 5 bidirectional switches that were designed to pass low speed and full-speed USB differential signals typically in the range of 0V to 3.6V. The switches have low capacitance (0.47pF) and high bandwidth (239MHz) to pass USB fullspeed signals (12Mbps) with minimum edge and phase distortion to meet USB 2.0 signal quality specifications. See Figure 12 for full-speed USB eye diagram. For the ISL54415 and ISL54416 parts the maximum signal range for the USB switches is from -1.5V to VBUS. The signal voltage should not be allow to exceed the VBUS voltage rail or go below ground by more than -1.5V. For the ISL54417 part the maximum signal range is from -1.5V to VDD. The signal voltage should not be allowed to exceed the VDD voltage rail or go below ground by more than -1.5V. When using the ISL54415 and ISL54416 parts the USB switches are active (turned ON) whenever the VBUS voltage is VDD + 0.8V. VBUS is internally pulled low, so when VBUS is floating the USB switches are OFF. Note: Whenever the USB switches are ON the audio and video drivers need to be at AC or DC ground or floating to keep from interfering with the data transmission. When using the ISL54417 part the NO1 USB switch is active (turned ON) whenever logic pin IN1 (pin 10) is HIGH. The NO2 USB switch is active (turned ON) whenever the logic pin IN2 (pin 2) is HIGH. Unlike the ISL54415 and ISL54416 parts were the two SPDT switches work in tandem, the ISL54417 gives you independent control over each SPDT switch.
FIGURE 9. VECTOR-SCOPE PLOT AFTER SWITCH
Figure 15 shows the measured gain and phase of a 3.58MHz, 300MVP-P signal at the output of the switch relative to the signal at the input of the switch as you vary the DC offset of the signal from 0V to 1V using a network analyzer. The data from the sweep was used to calculated the differential gain (DG) and differential phase (DP). Over luminance range of 0V to 1V: DG = 0.03% and DP = 0.05. Over luminanace range of 0V to 0.7V: DG = 0.03% and DP = 0.03. DG and DP plot using an actual NTSC video signal is shown in Figure 16. DG = 0.05% and DP = 0.02. These NC switches are uni-directional switches. The audio/video sources should be connected at the NC side of the switch (pins 7 and 8) and the speaker load and video receiver should be connected at the COM side of the switch (pins 3 and 4).
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ISL54415, ISL54416, ISL54417
ISL54415 and ISL54416 Operation
The ISL54415 and ISL54416 function the same except the ISL54416 does not have the VTERM feature. The discussion that follows pertains to both devices and will discuss using the parts in the typical application shown in the block diagram on page 10. LOGIC CONTROL The state of the ISL54415 and ISL54416 devices are determined by the voltage at the VBUS pin (pin 2). The VBUS pin is internally pulled low and can be left floating. If VBUS (pin 2) is floating or the VBUS voltage VDD + 0.2V the part will be in the audio/video mode. In Audio/Video mode the NC1 and NC2 1 audio/video switches are ON and the NO1 and NO2 5 USB switches are OFF (high impedance). In this state power to the part is provided by the DC voltage connected at the VDD pin (pin 1). In a typical application VDD will be in the range of 2.5V to 3.6V and will be connected to the battery or LDO of the media player. When a headphone/video receiver is plugged into the common connector, nothing gets connected at the VBUS pin (its floating) and the ISL54415 and ISL54416 parts remains in the audio/video mode and the media player audio and video drivers can drive the headphones and video display. If VBUS (pin 2) voltage is greater than VDD by 0.8V the part will go into USB mode. In USB mode the NO1 and NO2 5 USB switches are ON and the NC1 and NC2 1 audio/video switches are OFF (high impedance). In this state the part will be powered by the voltage connected at the VBUS pin (pin 2). When a USB cable from a computer or USB hub is connected at the common connector the VBUS voltage is driven to between 4.4V and 5.25V. The ISL54415 and ISL54416 parts will go into the USB mode. In USB mode the computer or USB hub transceiver and the media player USB transceiver are connected and digital data will be able to be transmit back and forth. When the USB cable is disconnected the switch automatically turns the NO1 and NO2 switches OFF and turns the NC1 and NC2 audio/video switches ON. POWER In audio/video mode the power supply connected at VDD (pin 1) provides power to the ISL54415 and ISL54416 parts. Its voltage should be kept in the range of 2.5V to 3.6V when used in a USB application to ensure you get proper switching when the VBUS voltage is at its lower limit of 4.4V. In USB mode power for the ISL54415 and ISL54416 parts is provided from the VBUS line from the host USB controller of the computer or USB hub. Its voltage will be between 4.4V and 5.25V. VTERM OPERATION (ISL54415 ONLY) When a USB cable from a computer is connected to a USB device a VTERM voltage must be applied to a speed indicating pull-up resistor to properly terminate the bus and identify whether the USB device is a full-speed or low-speed device to facilitate proper digital transmission. When the cable is removed from the device this VTERM voltage must be disconnected from the speed indicating pullup resistor. The ISL54415 device can perform this operation. When VDD 2.5V and VBUS VDD + 0.8V, the VTERM pin (pin 10) outputs an open circuit voltage equal to the voltage at the VBUS pin. Otherwise the VTERM pin will be in a HI-Z state. The ISL54415 VTERM circuitry has an internal series resistor approximately equal to 5.3k. For a full-speed USB application it is recommended you use a 3k 5% speed indicating pull-up resistor. When the USB bus is in the idle state, a 3k 5% resistor will put the D+ line voltage in the range of 2.7V to 3.6V as required by the USB specification. For low-speed USB application it is recommend you use a 2k 5% pull-up resistor at the D- line in order to meet the USB connect and disconnect timing requirements.
ISL54417 Operation
The ISL54417 is an audio/video and data switch. Its logic control is typical of a standard dual SPDT switch. The digital control for the ISL54417 are the IN pins (pin 2 and pin 10). These pins are 1.8V logic compatible when operated with a 3.0V supply. The device has been designed to have low IDD current even when the logic voltage is not at the rail. With VDD = 5.5V and VIN = 2.85V the ISL54417 draws only 8A current. When logic pin IN1 (pin 10) is LOW the NC1 audio/video switch is ON and the NO1 USB data switch is OFF. When logic pin IN1 (pin 10) is HIGH the NC1 audio/video switch is OFF and the NO1 USB data switch is ON. When logic pin IN2 (pin 2) is LOW the NC2 audio/video switch is ON and the NO2 USB data switch is OFF. When logic pin IN2 (pin 2) is HIGH the NC2 audio/video switch is OFF and the NO2 USB data switch is ON. Power for the ISL54417 device is always provided by the DC voltage source connected at the VDD pin (pin 1). The VDD power supply voltage range is from 1.8V to 5.5V.
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FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Typical Performance Curves TA = 25C, Unless Otherwise Specified
0.015 RLOAD = 32 VLOAD = 0.6VRMS 10 RL = 32 FREQ = 1kHz 1 0.01 THD+N (%) THD+N (%) VDD = 2.5V 0.1
0.005 0.01
VDD = 3V
0 20
0.001 200 2k FREQUENCY (Hz) 20k 0 10 20 30 40 50 60 70 OUTPUT POWER(mW)
FIGURE 10. THD+N vs FREQUENCY
FIGURE 11. THD+N vs POWER
MASK: FS (12Mbps)
VOLTAGE (835mV/DIV)
TIME (10ns/DIV)
FIGURE 12. EYE PATTEREN: 12Mbps
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FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Typical Performance Curves TA = 25C, Unless Otherwise Specified (Continued)
NORMALIZED GAIN (dB)
1 GAIN 0 AUDIO/VIDEO -1 USB -2 -3 -4 RL = 50 VIN = 0.2VP-P to 2VP-P 1 10 100 FREQUENCY (MHz) 1000
NORMALIZED GAIN (dB)
1 GAIN 0 -1 -2 -3 -4 RL = 75 VIN = 0.2VP-P to 2VP-P 1 10 100 FREQUENCY (MHz) 1000 AUDIO/VIDEO
FIGURE 13. FREQUENCY RESPONSE
FIGURE 14. FREQUENCY RESPONSE
GAIN (%)
Signal: 300Vmpp, 3.58358MHz) DG (0 to 0.7Vdc) = 0.03%
0.02 0 -0.02 GAIN (%) Signal: 300Vmpp, 3.58358MHz) DP (0 to 0.7Vdc) = 0.03 0 0.5 LUMINANCE LEVEL (V) 1
0.05 PHASE () 0.03
-0.03
FIGURE 15.
0 -10 -20 NORMALIZED GAIN (dB) -30 -40 -50 -60 -70 -80 -90 -100 0.001 0.01 0.1 1 3 6 10 FREQUENCY (MHz) 100 500 RL = 75 VIN = 0.2VP-P to 2VP-P
PHASE ()
0.01 0 -0.01
FIGURE 16.
Die Characteristics
SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 98 PROCESS: Submicron CMOS
FIGURE 17. VIDEO TO AUDIO CROSSTALK
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FN6318.1 June 27, 2006
ISL54415, ISL54416, ISL54417 Ultra Thin Quad Flat No-Lead Plastic Package (UTQFN)
D A B
L10.2.1x1.6A
10 LEAD ULTRA THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE MILLIMETERS SYMBOL MIN 0.45 NOMINAL 0.50 0.127 REF 0.15 2.05 1.55 0.20 2.10 1.60 0.50 BSC 0.20 0.35 0.40 10 4 1 0 12 0.45 0.25 2.15 1.65 MAX 0.55 0.05 NOTES 5, 9 9 2 3 3 4 Rev. 2 4/06 NOTES: 1. Dimensioning and tolerancing conform to ASME Y14.5-1994. 2. N is the number of terminals. 3. Nd and Ne refer to the number of terminals on D and E side, respectively. 4. All dimensions are in millimeters. Angles are in degrees. 5. Dimension b applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip.
6 INDEX AREA 2X 2X 0.10 C
N
E
1 0.10 C
2
A A1
TOP VIEW
A3 b
0.10 C 0.05 C SEATING PLANE A1 SIDE VIEW (DATUM A) PIN #1 ID 1 2 NX L N (DATUM B) N-1 e 3 (ND-1) X e BOTTOM VIEW C L NX (b) 5 SECTION "C-C" CC e (A1) NX b 5 A
C
D E e k L N
4xk
Nd Ne
0.10 M C A B 0.05 M C
9L
6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 identifier may be either a mold or mark feature. 7. Maximum package warpage is 0.05mm. 8. Maximum allowable burrs is 0.076mm in all directions. 9. Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389. 10. Same as JEDEC MO-255UABD except: No lead-pull-back, "A" MIN dimension = 0.45 not 0.50mm "L" MAX dimension = 0.45 not 0.42mm.
TERMINAL TIP
FOR ODD TERMINAL/SIDE
b
0.05 MIN
L
0.10 MIN DETAIL "A" PIN 1 ID
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 14
FN6318.1 June 27, 2006

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