11

P-1.1

12/20/06

PI3HDMI341AR

3:1 Active HDMI 1.3 Compatible Switch with Optimized

Equalization for Enhanced Signal Integrity

ADVANCE INFORMATION - COMPANY CONFIDENTIAL

Application Information

Supply Voltage

TMDS inputs

Standard TMDS terminations have already been integrated into Pericom’s PI3HDMI341AR device. Therefore, external termina-

tions are not required. Any unused port must be left floating and not tied to GND.

HPD Pins

The HPD pins on the PI3HDMI341AR require external pull down transistors to maintain a 0V signal when port is not selected, as

follows:

This architecture allows EDID readability when the DTV is power off or power on.

SCL and SDA pins

For EDID readability when the Sink is power off, 3 EEPROMs will be needed as follows

PI3HDMI341AR

HPD1

HPD2

HPD3

100K

100K

100K

5V

5V

5V

HPD

HPD

HPD

PI3HDMI341AR

SCL1

SDA1

SCL2

SDA2

SCL3

SDA3

HDMI

R

X

06-0340