PI2DBS212
1.8V, 1.8GHz, Differential Broadband Signal Switch,
2-Differential Channel, 2:1 Mux/DeMux Switch,
w/ Single Enable
Features
•
•
•
•
•
•
•
•
•
SAS, SATA2, XAUI Switch
2 Differential Channel, 2:1 Mux/DeMux
Bandwidth of 2.0 GHz (–3dB)
Low Bit-to-Bit Skew : <5 ps
Low Crosstalk: –26dB @ 3.2 Gbps
Low Off Isolation: –35dB @ 3.2 Gbps
V
DD
Voltage: +1.8V
ESD Tolerance: 8kV HBM I/O, 2kV HBM select pin
Packaging (Pb-free & Green):
– 20-Lead QSOP
– 28-Contact TQFN
Description
Pericom Semiconductor’s PI2DBS212 is an 1:2 differential
channel multiplexer/demultiplexer switch. Using a specialized
design scheme, Pericom has been able to achieve a performance
of 3Gbps data rate mux/de-mux function. Due to its bi-direc-
tional nature, the PI2DBS212 can be used to allocate bandwidth
to two different locations as a demux, or connect two high-speed
sources to a single reciever as a mux.
The PI2DBS212 will target the following standards: SAS, SATA
I, SATA II, XAUI, INFINIBAND, HYPERTRANSPORT, and
RAP ID I/O, for application in computers, consumer electronics,
instrumentation, etc.
Pin Description - 20-Lead QSOP
Block Diagram
A0+
A0-
A1+
A1-
B0+
B0-
B1+
B1-
C0+
C0-
C1+
C1-
GND
VDD
SEL
A0+
A0-
A1+
A1-
VDD
VDD
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
B0+
B0-
B1+
B1-
GND
VDD
C0+
C0-
C1+
C1-
Pin Description - 28-Contact TQFN
GND
VDD
GND
VDD
GND
NC
SEL
A0+
A0-
A1+
A1-
NC
1
2
3
4
5
6
7
8
SEL
28 27 26 25
24
23
22
21
20
19
18
17
B0+
B0-
B1+
B1-
GND
VDD
C0+
C0-
C1+
C1-
Truth Table
Function
Port A to Port B
Port A to Port C
07-0243
SEL
L
H
1
VDD
GND
9
16
11 12 13 14
10
15
GND
VDD
GND
VDD
PS8921A
10/31/07
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
