March 2007

Rev 1

1/12

AN2471

Application note

STMAV335 evaluation board &

PCB layout recommendation

Introduction

STMAV335 has three sets of 3 to 1 switches that are well suited for switching analog video

signals on the back panel of television sets or monitors. Below is a diagram of an

STMAV335 typical application configuration:

Typical display unit back panel video input

As illustrated above, STMAV335 is used to switch one of the three video input sets to the

video receiver. Depending on the SEL inputs, YPbPr, RGB, or CVBS&S-VIDEO signals will

be directed to the video receiver. Hence less IO is required at the video receiver to handle

the many different video signal inputs on the display unit back panel.

Ultimately, integrating STMAV335 to the system will result in a straightforward system

design and overall cost reduction.

YPbPr

RGB

CV BS& S-VID E O

YPbPr OR R G B O R C V B S& S-V ID E O

ST M A V 335

VIDE O R E C E IV E R

www.st.com