pi90lvb024 Pericom Semiconductor Corporation, pi90lvb024 Datasheet

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pi90lvb024

Manufacturer Part Number
pi90lvb024
Description
Lvds Dual 2x2 Crosspoint/repeater Switch
Manufacturer
Pericom Semiconductor Corporation
Datasheet
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
Features
• Dual 2x2 Crosspoint/Repeater Switch
• Meets or Exceeds the Requirements of ANSI TIA/
• 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
• Accepts ±350mV differential inputs
• Wide common mode input range: 0.2V to 2.7V
• Output drivers are high impedance when disabled or when
• 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
• TTL Inputs are 5V Tolerant
• Power Dissipation at 400Mbit/s of 250mW
• Available Packaging: 28-pin QSOP, 28-pin TSSOP
Block Diagram
EIA-644-1995
of ±350mV into:
– 100 Ohm load (PI90LV024)
–50 Ohm load Bus LVDS Signaling (PI90LVB024)
V
V
3DE/4DE
CC
CC
S0/S1
1A/1B
2A/2B
3Y/3Z
4Y/4Z
less than 1.5V
≤ 1.5V
1DE/2DE
1Y/1Z
2Y/2Z
3A/3B
4A/4B
S2/S3
1
LVDS Dual 2x2 Crosspoint/Repeater Switch
Description
The PI90LV024 and PI90LVB024 are monolithic dual 2x2 asynch-
ronous crosspoint/repeater switches. The crosspoint function is
based on a multiplexer tree architecture. Each 2x2 switch can be
considered as a pair of 2:1 multiplexers that share the same inputs.
The signal path through each switch is fully differential with minimal
propagation delay. The signal path is unregistered, so no clock is
required for the data inputs. The signal line drivers and receivers use
Low Voltage Differential Signaling (LVDS) to achieve signaling
rates as high as 650 Mbps.
The LVDS standard provides a minimum differential output voltage
magnitude of 247mV into a 100 Ohm load and receipt of 100mV
signals with up to 1V of ground potential difference between a
transmitter and receiver. The PI90LVB024 doubles the output drive
current to achieve Bus LVDS signaling levels with a 50 Ohm load.
The intended application of these devices is for loop-through and
redundant channel switching for both point-to-point base-band
(PI90LV024) and multipoint (PI90LVB024) data transmissions over
controlled impedance media. The package pin assignments enables
easy routing for applications requiring signal feedback.
Pin Configuration
GND
1DE
4DE
V
CC
1B
1A
S0
S1
2A
2B
4Y
3Y
4Z
3Z
PI90LV024, PI90LVB024
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-Pin
L,Q
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
1Y
1Z
2DE
2Z
2Y
GND
4B
4A
S3
3DE
S2
3A
3B
CC
PS8486A
03/27/01

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pi90lvb024 Summary of contents

Page 1

... Ohm load and receipt of 100mV signals with ground potential difference between a transmitter and receiver. The PI90LVB024 doubles the output drive current to achieve Bus LVDS signaling levels with a 50 Ohm load. The intended application of these devices is for loop-through and ...

Page 2

... 1DE/2DE 1Y/1Z Cross Point Router 2Y/2Z S3/S2 3A/3B Pass Through Router 1DE/2DE 1Y/1Z Splitter A 2Y/2Z S3/S2 3A/3B Splitter B 4A/4B 2 PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch PS8486A 03/27/01 ...

Page 3

... T A –0. (2) ........................ Class 3, A: 16kV, B:600V V  PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch † V  ...

Page 4

... PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch 0.6 (unless otherwise noted – ...

Page 5

... PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch (unless otherwise noted – ...

Page 6

... PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch ...

Page 7

... R L (see Note B) (2 Places Input Places) (see Note C) is made on test equipment with a –3dB bandwidth of at least 300 MHz. OC(PP) 7 PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch (see Note Places) (see Note C) 100% 80% 20 ...

Page 8

... Mpps, pulse width = 10 ±0.2ns. Figure 5. Differential Receiver to Driver Propagation Delay and Driver Transition Time Waveforms LVDS Dual 2x2 Crosspoint/Repeater Switch 0-V Differential 1.2 PHL 0-V Differential 1.2 PI90LV024, PI90LVB024 R L (see Note 1 1 80% 0-V Differential 20 PS8486A 03/27/01 ...

Page 9

... B. All input pulses are supplied by a generator having the following characteristics: pulse repetition rate (PRR) = 0.5 Mpps, pulse width = 500 ± 10ns PHZ t PLZ Figure 6. Enable and Disable Timing Circuit 9 PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch (see Note A) 1 (see Note 1.4 V 0.8 V ≈ 1.4 V 1. ...

Page 10

... PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch PI90LV024 LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 3 25° – Low-Level Output Current – mA Figure 8 PI90LVB024 LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 3 25° ...

Page 11

... SEATING PLANE 0.101 .004 0.254 .010 .169 4.3 .177 4.5 0.45 .018 .047 0.75 .030 1.20 Max .252 SEATING BSC PLANE 6.4 0.05 0. PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch 0.178 .007 0.254 .010 0.09 .004 0.20 .008 PS8486A 03/27/01 ...

Page 12

... Pericom Semiconductor Corporation 1 2 PI90LV024, PI90LVB024 LVDS Dual 2x2 Crosspoint/Repeater Switch – ° ° PS8486A 03/27/01 ...

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