© 2005 Fairchild Semiconductor Corporation

DS500802

www.fairchildsemi.com

April 2004

Revised August 2005

FSAV331

Dual Channel 4:1 Video Switch

General Description

The Fairchild video switch FSAV331 is a dual 4:1 high speed

video switch which can be configured as either multiplexer or

demultiplexer. Low On Resistance allows inputs to be con-

nected to outputs without adding propagation delay or generat-

ing additional ground bounce noise.

selected B Port output. When the OE Pin is HIGH, the switch is

OPEN and a HIGH-Impedance state exists between the two

ports.

Features

O Wide bandwidth: 300 MHz

O 73 dB non adjacent channel crosstalk at 10MHz

O 56 dB Off Isolation at 10MHz

O Low power consumption (3uA maximum)

O Control input: TTL compatible

Applications

O Y/C video or CVBS video switch in LCD, plasma,

and projector displays

Ordering Code:

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Diagram

Pin Descriptions

Connection Diagram

Truth Table

Order Number Package Number

Package Description

FSAV331QSC

MQA16A

16-Lead Quarter Size Small Outline Package (QSOP), JEDEC MO-137, 0.150" Wide

FSAV331MTC

MTC16

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Pin Name

Description

Bus Switch Enables

Select Inputs

ABus A

Bus B

Function

X

X

H

X

Disconnect 1A

X

X

X

H

Disconnect 2A

LLLL

LH

L

L

H

LLL

HH

L

L