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PI2PCIE412-D Schematic ( PDF Datasheet ) - Pericom Semiconductor

Teilenummer PI2PCIE412-D
Beschreibung 2:1 Mux/DeMux Switch
Hersteller Pericom Semiconductor
Logo Pericom Semiconductor Logo 




Gesamt 9 Seiten
PI2PCIE412-D Datasheet, Funktion
PI2PCIE412-D
Enhanced, 1.8V, PCI Express Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch,
w/ Single Enable
Features
• 4 Differential Channel, 2:1 Mux/DeMux
• PCI Express signal compliance
• Low Bit-to-Bit Skew , 10ps max (between '+' and '-' bits)
• Low Crosstalk: -65dB@10 MHz
www.DataSheLeto4wU.cOofmf Isolation: -65dB@10 MHz
• VCC Operating Range: +1.5V to +2.0V
• ESD Tolerance: 8kV HBM I/O; 2kV HBM select pin
• Low channel-to-channel skew, 35ps max
• Packaging (Pb-free & Green):
– 42-contact, TQFN (ZH42)
Description
Pericom Semiconductor’s PI2PCIE412-D is an 8 to 4 differential
channel multiplexer/demultiplexer switch. This solution can
switch 2 full PCI Express lanes to one of two locations. Using
a unique design technique, Pericom has been able to minimize
the impedance of the switch such that the attenuation observed
through the switch is negligible. The unique design technique
also offers a layout targeted for PCI Express signals, which
minimizes the channel to channel skew as well as channel to
channel crosstalk as required by the PCI Express specification.
Application
Switch a PCI-Express lane output between two PCI Express lane
inputs.
Block Diagram
A0
A1
A2
A3
A4
A5
A6
A7
SEL
Truth Table
Function
AN to NB1
AN to NB2
0B1
1B1
2B1
3B1
0B2
1B2
2B2
3B2
4B1
5B1
6B1
7B1
4B2
5B2
6B2
7B2
SEL
L
H
Pin Description
GND
A0
A1
GND
VDD
A2
A3
VDD
SEL
GND
A4
A5
VDD
GND
A6
A7
GND
42 41 40 39
1 38
2 37
3 36
4 35
5 34
6 33
7 32
8 31
9 GND 30
10 29
11 28
12 27
13 26
14 25
15 24
16 23
17 22
18 19 20 21
0B1
1B1
2B1
3B1
0B2
1B2
2B2
3B2
VDD
4B1
5B1
6B1
7B1
4B2
5B2
6B2
7B2
1
PS8788B
01/23/06






PI2PCIE412-D Datasheet, Funktion
PI2PCIE412-D
Enhanced, 1.8V, PCI Express Compliant,
4-Differential Channel, 2:1 Mux/DeMux Switch
Test Circuit for Dynamic Electrical Characteristics
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Applications Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
PCI Express Application Specific Measurements and Test Set-up
Motherboard
The trace on test card is 22.5" or 13.7”
TP1 50-ohm
termination
to ground
TP2
Root Complex Chipset
One pair of
the upstream
+ Tx signal 4.5" trace
PCI-Express
Drivers
Capacitors
PCI-Express
1x Connector
Pericom test board
PI2PCIE412-D
Figure 5: Test Setup
6
PS8788B
01/23/06

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