PERICOM PI90LV022B

PI90LV022, PI90LVB022
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LVDS Mux/Repeater
Features
Description
• Meets or Exceeds the Requirements of ANSI TIA/
EIA-644-1995
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.
• Designed for Signaling Rates up to 650 Mbit/s (325 MHz)
• Operates from a 3.3V Supply: –40°C to +85°C
• Low Voltage Differential Signaling with Output Voltages
of ±350mV into:
- 100 Ohm load (PI90LV022)
- 50 Ohm load Bus LVDS Signaling (PI90LVB022)
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.
• 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
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.
• 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)
Block Diagram
Pin Configuration
1DE
1B
1
16
VCC
1A
+
1Y
1A
2
15
VCC
1B
–
1Z
S0
3
14
1Y
1DE
2A
+
2Y
2B
–
2Z
16-Pin
4 L,W 13
1Z
S1
5
12
2DE
2A
6
11
2Z
2B
7
10
2Y
GND
8
9
GND
2DE
S0 S1
1
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Table 1. MUX Truth Table
INPUT
OUTPUT
FUNCTION
S1
S0
1Y/1Z
2Y/2Z
0
0
1A/1B
1A/1B
Splitter
0
1
2A/2B
2A/2B
Splitter
1
0
1A/1B
2A/2B
Router
1
1
2A/2B
1A/1B
Router
Note: Setting nDE to 0 will set Ouput nY/nZ to High Impedance.
S1 / S0
1DE / 2DE
1A / 1B
1Y / 1Z
2A / 2B
2Y / 2Z
S1 / S0
1DE / 2DE
1A / 1B
1Y / 1Z
2A / 2B
2Y / 2Z
Cross Point
Router
Pass Through
Router
Router Options
S1, S0
1DE, 2DE
1A, 1B
1Y, 1Z
2A, 2B
2Y, 2Z
S1, S0
1DE, 2DE
1A, 1B
1Y, 1Z
2A, 2B
2Y, 2Z
Splitter A
Splitter B
Splitter Options
Figure 1. Possible Signal Routing
2
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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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 .............................................................. –65°C to 150°C
Lead Temperature 1, 6 mm (1/16 inch) from case for 10 seconds ................... 260°C
† 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
Supply Voltage, VCC
High- Level Input Voltage, VIH
S0, S1, 1DE, 2DE
Low- Level Input Voltage, VIL
S0, S1, 1DE, 2DE
Magnitude of Differential Input Voltage VID
M in.
Nom.
M ax.
3.0
3.3
3.6
2
0.8
0.1
VID
2
Common- Mode input Voltage, VIC (see Figure 2)
Units
0.6
2.4 –
V
VID
2
VCC –0.8
–40
Operating free- air temperature, TA
3
85
°C
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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2.5
VIC – Common-Mode Input Voltage – V
MAX at VCC > 3.15V
MAX at VCC = 3V
2
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
Parame te r
VITH+
Positive- going differential input voltage threshold
VITH–
Negative- going differential input voltage threshold
II
II (OFF)
Te s t Conditions
VCM = 1.2V
Input current (A or B inputs)
Power- off input current (A or B inputs)
Typ.(1)
M ax.
100
–100
VI = 0V
–2
VI = 2.4V
–1.2
VCC = 0V
4
M in.
Units
mV
–20
µA
20
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Receiver/Driver Electrical Characteristics Over Recommended Operating Conditions (unless otherwise noted)
Symbol
Parame te r
VOD
Differential output voltage magnitude
∆VOD
Change in differential output voltage magnitude
between logic states
VOC(SS)
Steady- state common- mode output voltage
∆VOC(SS)
Change in steady- state common- mode output
voltage between logic states
VOC(PP)
Peak- to- peak common- mode output voltage
ICC
Supply current
IH
High- level input current
IIL
Low- level input current
IOS
Te s t Conditions
RL = 100 Ohm
(LV022)
RL = 50 Ohm
(LVB022)
Input capacitance
590
–50
50
1.125
1.375
–50
3
50
RL = 100 Ohm (LV022)
13
20
RL = 50 Ohm (LVB022)
21
27
Both Channels Disabled
3
6
VIH = 5
VIL = 0.8V
Short- circuit output current
CIN
440
12
S 0, S 1
Power- off output current
247
8
DE
IO(OFF)
M ax.
No Load
S 0, S 1
High- Impedence output current
See Fig. 4
Typ.(1)
Units
mV
V
mV
150
DE
IOZ
See Fig. 3
M in.
40
nA
–3
µA
–20
nA
10
µA
VOY or VOZ = 0V,
VOD = 0V (LV022)
–10
VOY or VOZ = 0V,
VOD = 0V (LVB022)
–10
–10
mA
–10
VOD = 600mV
1. 5
± 25
VO = 0V or VCC
1.5
± 25
VCC = 0V, VO = 3.6V
1.5
± 40
3
S0, S1, 1DE, 2DE
mA
nA
pF
8
Note:
1. All typical values are at 25°C and with a 3.3 supply
5
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Differential Receiver to Driver Switching Characteristics Over Recommended Operating Conditions
(unless otherwise noted)
Symbol
Te s t
Conditions
Parame te r
M in.
Typ.(1)
M ax.
tPLH
Differential propagation delay, low- to- high
4.0
6.0
tPHL
Differential propagation delay, high- to- low
4.0
6.0
tsk(p)
Pulse skew (tPHL - tPLH)
0.2
–
0.9
1.5
CL = 10pF
(See Fig. 5)
tr
Transition, low- to- high
PI90LV022
tr
Transition, low- to- high
PI90LVB022
0.6
1.3
tf
Transition, high- to- low
PI90LV022
0.8
1.5
tf
Transition, high- to- low
PI90LVB022
0.5
1.3
4.0
10
4.3
10
3.0
10
2.0
10
tPHZ
Propagation delay time, high- level- to- high- impedence output
tPLZ
Propagation delay time, low- level- to- high- impedence output
tPZH
Propagation delay time, high- impedence- to- high- level output
tPZL
Propagation delay time, high- impedence- to- low- level output
tPHL_R1_Dx
tPLH_R1_Dx
tPHL_R2_Dx
(See Fig. 6)
Units
ns
95
95
Channel- to- channel skew,
receiver to driver(2)
ps
95
tPLH_R2_Dx
95
Notes:
1. All typical values are at 25°C 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
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Parameter Measurement Information
DE
Y
A
Pulse
Generator
R
D
B
VI(B)
1.4 V
VI(A)
1V
Input
(see Note A)
VOD
Z
RL (see Note B)
CL = 10 pF
(2 Places)
(see Note C)
100%
80%
VOD
0
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 = 100Ω or 50Ω ±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
Y
A
Pulse
Generator
R
RL (see Note B)
(2 Places)
D
B
Input
(see Note A)
Z
1.4 V
VI(A)
1V
VOC(PP)
(see Note D)
VOC
CL = 10 pF
(2 Places)
(see Note C)
VI(B)
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 = 100Ω or 50Ω ±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
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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DE
A
Pulse
Generator
Y
R
D
RL (see Note A)
Z
B
10 pF
10 pF
VIB
1.4 V
0-V Differential
1.2-V CM
1V
VIA
tPLH
tPHL
VOZ
1.4 V
0-V Differential
1.2-V CM
VOY
1V
80%
0-V Differential
20%
VOY – VOZ
tf
tr
Notes: A. RL = 100Ω or 50Ω ±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
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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DE
1 V or 1.4 V
A
R
1.2 V
B
RL/2
(see Note A)
Y
1.2 V
D
Z
RL/2
(see Note A)
2V
DE
1.4 V
0.8 V
tPZH
tPHZ
≈ 1.4 V
VOY or VOZ
1.25 V
1.2 V
tPZL
tPLZ
1.2 V
1.15 V
VOY or VOZ
≈1 V
Notes:
A. RL = 100 Ω or 50 Ω ±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.
Figure 6. Enable and Disable Timing Circuit
9
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Typical Characteristics
PI90LV022B
PI90LV022B
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
4
VCC = 3.3 V
TA = 25°C
3
V OL – Low-Level Output Voltage – V
V OH – High-Level Ouptut Voltage – V
3.5
2.5
2
1.5
1
VCC = 3.3 V
TA = 25°C
3
2
1
.5
0
0
–4
–3
–2
0
0
–1
6
IOL – Low-Level Output Current – mA
Figure 7
Figure 8
PI90LVB022B
PI90LVB022B
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
4
3.5
VCC = 3.3 V
TA = 25°C
3
V OL – Low-Level Output Voltage – V
V OH – High-Level Output Voltage – V
4
2
IOH – High-Level Output Current – mA
2.5
2
1.5
1
.5
VCC = 3.3 V
TA = 25°C
3
2
1
0
0
–8
–6
–4
–2
0
0
IOH – High-Level Output Current – mA
2
4
6
8
10
12
IOL – Low-Level Output Current – mA
Figure 10
Figure 9
10
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Packaging Mechanical: 16-Pin SOIC (W)
16
.149
.157
3.78
3.99
.0099
.0196
0.25
x 45˚
0.50
1
.0075
.0098
0-8˚
.386
.393
9.80
10.00
0.41 .016
1.27 .050
.053
.068
.0155
.0260
0.393
0.660
REF
1.35
1.75
.2284
.2440
5.80
6.20
SEATING PLANE
.050
BSC
1.27
0.19
0.25
.0040 0.10
.0098 0.25
.013
.020
0.330
0.508
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
0.45 .018
0.75 .030
SEATING
PLANE
.0256
BSC
0.65
.007
.012
.002
.006
0.09
0.20
.252
BSC
6.4
0.05
0.15
X.XX DENOTES CONTROLLING
X.XX DIMENSIONS IN MILLIMETERS
0.19
0.30
11
PS8488B
09/28/04
PI90LV022, PI90LVB022
LVDS Mux / Repeater
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Ordering Information
Ordering Code
Package Code
Package Description
PI90LV022W
W
16-pin 150-mil SOIC
PI90LV022WE
W
Pb-free & Green, 16-pin 150-mil SOIC
PI90LV022L
L
16-pin 173-mil TSSOP
PI90LV022LE
L
Pb-free & Green, 16-pin 173-mil TSSOP
PI90LVB022W
W
16-pin 150-mil SOIC
PI90LVB022WE
W
Pb-free & Green, 16-pin 150-mil SOIC
PI90LVB022L
L
16-pin 173-mil TSSOP
PI90LV0B22LE
L
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
12
PS8488B
09/28/04