PI3HDX412BD

3.4Gbps HDMI 1.4b 1:2 Splitter/Demux with Equalization & Pre-emphasis

4

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03/24/14

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Pin # Pin Name

Type Description

49

50

51

52

(Continued)

I

EMP2 and EMP1 pins control output voltage pre-emphasis. These pins have

internally Pull-Up 100 Kohm.

EMP2 (Pin#52) EMP1 (Pin#51) Pre-emphasis Setting (dB)

0

0

0

0

1

1.5

1

0

2.5

1

1

3.5

56

OE

I

Output Enable Control pin. Internally pull-up at 100 Kohm.

"High" : Output Port Enable

"Low" : Turn off Rout and Rt(termination resistor). TMDS Receiver and TMDS

Output Drivers are "OFF" state.

54

DR

I

Direction Control pin

"High" : All ports are Active at same time

"Low" : Output Ports are controlled by SEL1 (Pin#55) control

55

SEL1

I

Port 1 or Port 2 Output Enable Selection pin. Internal pull-up at 100 Kohm.

"High" : Enable Output Port 2

"Low" : Enable Output Port 1

16

SEL_OUT

O

Offset 0x00 Bit[5] ="1" : Enable Output Port 1 Output

Offset 0x00 Bit[5] ="0" : Disable Output Port 1 Output

17

ROUT_SEL

I

Source termination selection pin. Internal pull-up at 100K Ohm.

"High" : Source Termination Output (Rout) Resistor is "ON", connect to VDD in

Output Driver

"Low" : Source Termination Output (Rout) Resistor is "OFF". Open-Drain Output

Driver is open drain

14-0020