PI3PCIE3422
3.3V, PCI Express® 3.0 2-Lane, (4-Channel), Differential Mux/Demux with Bypass
Features
Description
ÎÎ8 Differential Channel SPST switch with Mux/DeMux option
Pericom semiconductor’s PI3PCIE3422 is an 8 to 4 channel
differential multiplexer/demultiplexer featuring 8-channel passthrough. It supports two full PCIe® lanes at 8.0Gbps PCIe® 3.0
performance.
ÎÎPCIe® 3.0 performance
ÎÎBi-directional operation
ÎÎLow Bit-to-Bit Skew: 10ps (between ± signals)
ÎÎLow Crosstalk: -50dB @ 4.0GHz (8Gbps)
ÎÎLow Off Isolation:
With the select control input low Port A connects to Port B, and
Port C connects to port D for an 8-channel differential passthough. 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.
-21dB @4GHz
ÎÎLow Insertion Loss: -1.8dB @ 4.0GHz (8Gbps)
ÎÎReturn Loss:
-15dB @4GHz
ÎÎVDD Operating Range: 3.3V ±10%
ÎÎESD Tolerance: 2kV HBM
ÎÎPackaging (Pb-free & Green): 42-contact, TQFN (ZH42)
Truth Table
Function
Ax = Bx
Cx = Dx
Ax = Dx
B = C = Hi-Z
Ax, Bx, Cx, Dx = Hi-Z (disconnected)
SEL
OE#
L
0
H
0
x
1
Block Diagram
OE#
SEL
A0+
A0C0+
C0-
A1+
A1C1+
C1-
A2+
A2C2+
C2-
A3+
A3C3+
C3-
All trademarks are property of their respective owners.
B0+
B0-
D0+
D0B1+
B1-
D1+
D1B2+
B2-
D2+
D2B3+
B3-
D3+
D3-
1
www.pericom.com
P-0.3
04/18/12
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