PI2DBS212QE datasheet(1/10 Pages) PERICOM

Part #	PI2DBS212QE

Description	1.8V, 1.8GHz, Differential Broadband Signal Switch, 2-Differential Channel, 2:1 Mux/DeMux Switch, w/ Single Enable

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Manufacturer	PERICOM [Pericom Semiconductor Corporation]

Direct Link	http://www.pericom.com

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PS8921A

10/31/07

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

• VDD 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.

Block Diagram

Pin Description - 20-Lead QSOP

PI2DBS212

1.8V, 1.8GHz, Differential Broadband Signal Switch,

2-Differential Channel, 2:1 Mux/DeMux Switch,

w/ Single Enable

Truth Table

Function

SEL

Port A to Port B

L

Port A to Port C

H

SEL

A1-

A1+

A0-

A0+

B0-

B0+

B1+

C0+

B1-

C0-

C1+

C1-

Pin Description - 28-Contact TQFN

1

2

3

4

5

6

7

8

9

10

24

23

22

21

20

19

18

17

16

15

11 12 13 14

28 27 26 25

GND

NC

SEL

A0+

A0-

A1+

A1-

NC

VDD

GND

B0+

B0-

B1+

B1-

GND

VDD

C0+

C0-

C1+

C1-

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

GND

SEL

VDD

A0+

A0-

A1+

A1-

VDD

GND

B0+

B0-

B1+

B1-

GND

VDD

C0+

C0-

C1+

C1-

07-0243

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