© 2004 Fairchild Semiconductor Corporation

DS500802

www.fairchildsemi.com

April 2004

Revised May 2004

FSAV331

Dual 4:1 Wide Bandwidth Video Switch

General Description

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

speed video switch which can be configured as either mul-

tiplexer or demultiplexer. Low On Resistance allows inputs

to be connected to outputs without adding propagation

delay or generating additional ground bounce noise.

the 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

s Wide bandwidth: 300 MHz

s

−73 dB non adjacent channel crosstalk at 10MHz

s

−56 dB Off Isolation at 10MHz

s 3

Ω typical On Resistance (R

s Low power consumption (3uA maximum)

s Control input: TTL compatible

Applications

• 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

MQA16

16-Lead Quarter Size 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

L

LLL

A

= B

1

LH

L

L

A

= B

2

H

LLL

A

= B

3

HH

L

L

A

= B

4