PI3PCIE3422 Datasheet, PDF (1/9 Pages) Pericom Semiconductor Corporation – 3.3V, PCI Express 3.0 2-Lane, (4-Channel), Differential Mux/Demux with Bypass

PI3PCIE3422
3.3V, PCI Express® 3.0 2-Lane, (4-Channel), Differential Mux/Demux with Bypass
Features
ÎÎ8 Differential Channel SPST switch with Mux/DeMux option
ÎÎPCIe® 3.0 performance
ÎÎBi-directional operation
ÎÎLow Bit-to-Bit Skew: 10ps (between ± signals)
ÎÎLow Crosstalk: -50dB @ 4.0GHz (8Gbps)
ÎÎLow Off Isolation: -21dB @4GHz
ÎÎLow Insertion Loss: -1.8dB @ 4.0GHz (8Gbps)
ÎÎReturn Loss: -15dB @4GHz
ÎÎV_DD Operating Range: 3.3V ±10%
ÎÎESD Tolerance: 2kV HBM
ÎÎPackaging (Pb-free & Green): 42-contact, TQFN (ZH42)
Truth Table
Description
Pericom semiconductor’s PI3PCIE3422 is an 8 to 4 channel
differential multiplexer/demultiplexer featuring 8-channel pass-
through. It supports two full PCIe® lanes at 8.0Gbps PCIe® 3.0
performance.
With the select control input low Port A connects to Port B, and
Port C connects to port D for an 8-channel differential pass-
though. When the select control input is high Port A connects
to Port D, and Port B and Port C are in a high-impedance state.
The mux/demux function is between Port A and Ports B or D as
determined by the select input control.
Function
Ax = Bx
Cx = Dx
Ax = Dx
B = C = Hi-Z
Ax, Bx, Cx, Dx = Hi-Z (disconnected)
Block Diagram
OE#
SEL
A0+
A0-
C0+
C0-
A1+
A1-
C1+
C1-
A2+
A2-
C2+
C2-
A3+
A3-
SEL OE#
L
0
Pin Diagram (Top-side view)
H
0
x
1
B0+
B0-
D0+
D0-
B1+
B1-
D1+
D1-
B2+
B2-
D2+
D2-
B3+
B3-
A0+ 1
38 B0+
A0- 2
37 B0-
C0+ 3
36 D0+
C0- 4
35 D0-
A1+ 5
34 B1+
A1- 6
33 B1-
C1+ 7
32 D1+
C1- 8
SEL ⁹
GND 31 D1-
30 VDD
A2+ ¹⁰
29 B2+
A2- 11
C2+ 12
C2- 13
A3+ 14
A3- 15
C3+ 16
C3- 17
28 B2-
27 D2+
26 D2-
25 B3+
24 B3-
23 D3+
22 D3-
C3+
D3+
C3-
D3-
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1
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