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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV022, PI90LVB022
LVDS Mux/Repeater
Features
* Meets or Exceeds the Requirements of ANSI TIA/ EIA-644-1995 * Designed for Signaling Rates up to 650 Mbit/s (325 MHz) * Operates from a 3.3V Supply: -40C to +85C * Low Voltage Differential Signaling with Output Voltages of 350mV into: - 100 Ohm load (PI90LV022) - 50 Ohm load Bus LVDS Signaling (PI90LVB022) * Accepts 350mV differential inputs * Wide common mode input voltage range: 0.2V to 2.7V * Output drivers are high impedance when disabled or when VCC 1.5V * Inputs are open, short, and terminated fail safe * Propagation Delay Time: 3.5ns * ESD protection is 10kV on bus pins * Bus Pins are High Impedance when disabled or with VCC less than 1.5V * TTL Inputs are 5V I/O Tolerant * Power Dissipation at 400Mbit/s less than 150mW * Industrial temperature rating * Packaging (Pb-free & Green available): - 16-pin SOIC (W) - 16-pin TSSOP (L)
Description
The PI90LV022 and PI90LVB022 are differential line drivers and receivers that use Low Voltage Differential Signaling (LVDS) to achieve signaling rates as high as 650 Mbps. The receiver outputs can be switched to either or both drivers through the multiplexer control signals S0 and S1. This allows the flexibility to perform splitter or signal routing functions with a single device. The LVDS standard provides a minimum differential output voltage magnitude of 247mV into a 100 Ohm load and receipt of 100mV DC signals with up to 1V of ground potential difference between a transmitter and receiver. The PI90LVB022 doubles the output drive current to achieve Bus LVDS signaling levels with a 50 Ohm load. A doubly terminated Bus LVDS line enables multi-point configurations. Switching between channels does not create false transitions on the outputs. The intended application of these devices and signaling technique is for both point-to-point base-band (PI90LV022) and multipoint (PI90LVB022) data transmissions over controlled impedance media.
Block Diagram
Pin Configuration
1DE 1A 1B + - 1Y 1Z
1B 1A S0 1DE
1 2 3
16 15 14
VCC VCC 1Y 1Z 2DE 2Z 2Y GND
16-Pin 4 L,W 13
5 6 7 8 12 11 10 9
2A 2B
+ -
2Y 2Z 2DE
S1 2A 2B GND
S0 S1
1
PS8488B
09/28/04
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Table 1. MUX Truth Table
INPUT S1 0 0 1 1 S0 0 1 0 1 OUTPUT 1Y/1Z 1A/1B 2A/2B 1A/1B 2A/2B 2Y/2Z 1A/1B 2A/2B 2A/2B 1A/1B FUNCTION Splitter Splitter Router Router
Note: Setting nDE to 0 will set Ouput nY/nZ to High Impedance.
S1 / S0 1A / 1B
1DE / 2DE 1Y / 1Z Cross Point Router
2A / 2B
2Y / 2Z
S1 / S0 1A / 1B
1DE / 2DE 1Y / 1Z Pass Through Router
2A / 2B
2Y / 2Z
Router Options
S1, S0 1A, 1B 1DE, 2DE 1Y, 1Z
Splitter A
2A, 2B
2Y, 2Z
S1, S0 1A, 1B
1DE, 2DE 1Y, 1Z
Splitter B
2A, 2B
2Y, 2Z
Splitter Options
Figure 1. Possible Signal Routing
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Absolute Maximum Ratings Over Operating Free-Air Temperature
Supply Voltage Range, VCC(1) ............................................................................... -0.5V to 4V Voltage Range (DE, S0, S1) ...................................................................... -0.5 to 6V Input Voltage Range, VI (A or B) ............................................ -0.5V to VCC + 0.5V Electrostatic Discharge: A, B, Y, Z, and GND(2) ................ Class 3, A: 16kV, B:600V All Pins ............................................ Class 3, A: 7kV, B:500V Storage Temperature Range .............................................................. -65C to 150C Lead Temperature 1, 6 mm (1/16 inch) from case for 10 seconds ................... 260C 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 under "Recommended Operating Conditions" is not implied. Exposure to Absolute-Maximum-Rated conditions for extended periods may affect device reliability. Notes: 1. All voltage values, except differential I/O bus voltages, are with respect to ground terminal. 2. Tested in accordance with MIL-STD-883C Method 3015.7
Recommended Operating Conditions
M in. Supply Voltage, VCC High- Level Input Voltage, VIH Low- Level Input Voltage, VIL Magnitude of Differential Input Voltage VID S0, S1, 1DE, 2DE S0, S1, 1DE, 2DE 0.1 VID Common- Mode input Voltage, VIC (see Figure 2) 2
2.4 -
Nom. 3.3
M ax. 3.6
Units
3.0 2
0.8 0.6 VID 2 V
VCC -0.8 Operating free- air temperature, TA -40 85 C
3
PS8488B
09/28/04
VIC - Common-Mode Input Voltage - V
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
2.5 MAX at VCC > 3.15V
2
MAX at VCC = 3V
1.5
1
0.5 MIN
0 0.1 0.2 0.3 0.4 0.5 0.6
VID - Differential Input Voltage - V
Figure 2. Common-Mode Input Voltage vs. Differential Voltage
Receiver Electrical Characteristics Over Recommended Operating Conditions (unless otherwise noted)
Symbol VITH+ VITH- II II (OFF) Parame te r Positive- going differential input voltage threshold Negative- going differential input voltage threshold Input current (A or B inputs) Power- off input current (A or B inputs) Te s t Conditions VCM = 1.2V VI = 0V VI = 2.4V VCC = 0V M in. Typ.(1) M ax. 100 -100 -2 -1.2 20 -20 A Units mV
4
PS8488B
09/28/04
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Receiver/Driver Electrical Characteristics Over Recommended Operating Conditions (unless otherwise noted)
Symbol VOD VOD VOC(SS) VOC(SS) VOC(PP) Parame te r Differential output voltage magnitude Change in differential output voltage magnitude between logic states Steady- state common- mode output voltage Change in steady- state common- mode output voltage between logic states Peak- to- peak common- mode output voltage No Load ICC Supply current RL = 100 Ohm (LV022) RL = 50 Ohm (LVB022) Both Channels Disabled IH IIL High- level input current Low- level input current DE S 0, S 1 DE S 0, S 1 VIH = 5 VIL = 0.8V VOY or VOZ = 0V, VOD = 0V (LV022) VOY or VOZ = 0V, VOD = 0V (LVB022) High- Impedence output current Power- off output current Input capacitance VOD = 600mV VO = 0V or VCC VCC = 0V, VO = 3.6V S0, S1, 1DE, 2DE 1. 5 1.5 1.5 3 8 8 13 21 3 RL = 50 Ohm (LVB022) See Fig. 4 RL = 100 Ohm (LV022) See Fig. 3 Te s t Conditions M in. 247 -50 1.125 -50 3 Typ.(1) 440 M ax. 590 50 1.375 50 150 12 20 27 6 40 -3 -20 10 -10 -10 -10 -10 25 25 40 pF nA mA nA A nA A mA mV V mV Units
IOS
Short- circuit output current
IOZ IO(OFF) CIN
Note: 1. All typical values are at 25C and with a 3.3 supply
5
PS8488B
09/28/04
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Differential Receiver to Driver Switching Characteristics Over Recommended Operating Conditions
(unless otherwise noted)
Symbol tPLH tPHL tsk(p) tr tr tf tf tPHZ tPLZ tPZH tPZL tPHL_R1_Dx tPLH_R1_Dx tPHL_R2_Dx tPLH_R2_Dx
Notes:
Parame te r Differential propagation delay, low- to- high Differential propagation delay, high- to- low Pulse skew (tPHL - tPLH) Transition, low- to- high Transition, low- to- high Transition, high- to- low Transition, high- to- low PI90LV022 PI90LVB022 PI90LV022 PI90LVB022
Te s t Conditions
M in.
Typ.(1) 4.0 4.0
M ax. 6.0 6.0 - 1.5 1.3 1.5 1.3 10 10 10 10
Units
CL = 10pF (See Fig. 5)
0.2 0.9 0.6 0.8 0.5 4.0
ns
Propagation delay time, high- level- to- high- impedence output Propagation delay time, low- level- to- high- impedence output Propagation delay time, high- impedence- to- high- level output Propagation delay time, high- impedence- to- low- level output (See Fig. 6)
4.3 3.0 2.0 95
Channel- to- channel skew, receiver to driver(2)
95 95 95
ps
1. All typical values are at 25C and with a 3.3 supply. 2. These parametric values are measured over supply voltage and temperature ranges recommended for the device.
6
PS8488B
09/28/04
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Parameter Measurement Information
DE A Pulse Generator B R Input (see Note A) D Z Y VOD RL (see Note B)
CL = 10 pF (2 Places) (see Note C)
VI(B) VI(A)
1.4 V 1V VOD 0
100% 80%
20% 0% tf tr
Notes: A. All input pulses are supplied by a generator having the following characteristics: tr or tf 1ns, pulse repetition rate (PRR) - 50 Mpps, pulse width = 10 0.2ns. B. RL = 100 or 50 1%. C. CL includes instrumentation and fixture capacitance within 6mm of the D.U.T. D. The measurement of VOC(PP) is made on test equipment with a -3dB bandwidth of at least 300 MHz.
Figure 3. Test Circuit and Voltage Definitions for the Differential Output Signal
DE A Pulse Generator R B Input (see Note A) Z Y D
RL (see Note B) (2 Places)
VI(B) VI(A) VOC(PP) (see Note D)
1.4 V 1V
VOC CL = 10 pF (2 Places) (see Note C)
VOC(SS)
VCC
Notes: A. All input pulses are supplied by a generator having the following characteristics: tr or tf 1ns, pulse repetition rate (PRR) - 50 Mpps, pulse width = 10 0.2ns. B. RL = 100 or 50 1%. C. CL includes instrumentation and fixture capacitance within 6mm of the D.U.T. D. The measurement of VOC(PP) is made on test equipment with a -3dB bandwidth of at least 300 MHz.
Figure 4. Test Circuit and Definitions for the Driver Common-Mode Output Voltage
7
PS8488B
09/28/04
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DE A Pulse Generator B R D Z 10 pF 10 pF Y RL (see Note A) VIB 0-V Differential VIA tPLH VOZ 0-V Differential VOY 1.2-V CM 1V tPHL 1.4 V 1.2-V CM 1V 1.4 V VOY - VOZ 80% 0-V Differential 20%
PI90LV022, PI90LVB022 LVDS Mux / Repeater
tr
tf
Notes: A. RL = 100 or 50 1% B. All input pulses are supplies by a generator having the following characteristics: pulse repetition rate (PPR) = 50 Mpps, pulse width = 10 0.2ns.
Figure 5. Differential Receiver to Driver Propagation Delay and Driver Transition Time Waveforms
8
PS8488B
09/28/04
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DE 1 V or 1.4 V A R 1.2 V B Y D Z RL/2 (see Note A) 1.2 V RL/2 (see Note A) 2V DE 1.4 V 0.8 V tPZH VOY or VOZ tPHZ 1.4 V 1.25 V 1.2 V tPZL tPLZ 1.2 V VOY or VOZ Notes: 1.15 V 1 V A. RL = 100 or 50 1% B. All input pulses are supplied by a generator having the following characteristics: pulse repetition rate (PRR) = 0.5 Mpps, pulse width = 500 10ns.
PI90LV022, PI90LVB022 LVDS Mux / Repeater
Figure 6. Enable and Disable Timing Circuit
9
PS8488B
09/28/04
V OH - High-Level Ouptut Voltage - V
3 2.5
V OL - Low-Level Output Voltage - V
V OH - High-Level Output Voltage - V
V OL - Low-Level Output Voltage - V
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI90LV022, PI90LVB022 LVDS Mux / Repeater
Typical Characteristics
PI90LV022B PI90LV022B
HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT
3.5 VCC = 3.3 V TA = 25C 4
LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT
VCC = 3.3 V TA = 25C 3
2 1.5 1 .5 0 -4 -3 -2 -1 0 IOH - High-Level Output Current - mA
2
1
0 0 2 4 6 IOL - Low-Level Output Current - mA
Figure 7
PI90LVB022B
Figure 8
PI90LVB022B
HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT
3.5 VCC = 3.3 V TA = 25C 3 2.5 4
LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT
VCC = 3.3 V TA = 25C 3
2 1.5 1 .5 0 -8 -6 -4 -2 0 IOH - High-Level Output Current - mA
2
1
0 0 2 4 6 8 10 12 IOL - Low-Level Output Current - mA
Figure 9
Figure 10
10
PS8488B
09/28/04
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Packaging Mechanical: 16-Pin SOIC (W)
16
.149 .157
3.78 3.99 .0099 .0196 0.25 x 45 0.50
1 .386 .393 9.80 10.00 .0155 .0260 0.393 0.660 REF .053 .068 1.35 1.75 SEATING PLANE 0-8 0.41 .016 1.27 .050 .2284 .2440 5.80 6.20 .0075 .0098 0.19 0.25
.050 BSC 1.27
.013 .020 0.330 0.508
.0040 0.10 .0098 0.25
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Packaging Mechanical: 16-Pin TSSOP (L)
16
.169 .177
4.3 4.5
1 .193 .201 4.9 5.1 .004 .008 .047 max. 1.20 SEATING PLANE 0.45 .018 0.75 .030 .252 BSC 6.4
0.09 0.20
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 .006
0.05 0.15 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
11
PS8488B
09/28/04
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PI90LV022, PI90LVB022 LVDS Mux / Repeater
Ordering Information
Ordering Code PI90LV022W PI90LV022WE PI90LV022L PI90LV022LE PI90LVB022W PI90LVB022WE PI90LVB022L PI90LV0B22LE Package Code W W L L W W L L Package Description 16-pin 150-mil SOIC Pb-free & Green, 16-pin 150-mil SOIC 16-pin 173-mil TSSOP Pb-free & Green, 16-pin 173-mil TSSOP 16-pin 150-mil SOIC Pb-free & Green, 16-pin 150-mil SOIC 16-pin 173-mil TSSOP Pb-free & Green, 16-pin 173-mil TSSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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PS8488B 09/28/04

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