ad8191a Analog Devices, Inc., ad8191a Datasheet - Page 21

• Manufacturer Part Number: ad8191a
• Description: 4 1 Hdmi/dvi Switch With Equalization
• Manufacturer: Analog Devices, Inc.

INPUT TERMINATION PULSE REGISTER 1 AND
REGISTER 2
High speed input (TMDS) channels pulse-on-source switching
fixed to off when using the parallel interface.
RECEIVE EQUALIZER REGISTER 1 AND REGISTER 2
PP_EQ: High Speed (TMDS) Input Equalization Level
Select Bit (For All TMDS Input Channels)
The input equalization cannot be set individually (per channel)
when using the parallel interface; one equalization setting
affects all input channels.
Table 22. PP_EQ Description
PP_EQ
0
1
TRANSMITTER SETTINGS REGISTER
PP_PE[1:0]: High Speed (TMDS) Output Pre-Emphasis
Level Select Bus (For All TMDS Channels)
Table 23. PP_PE[1:0] Description
PP_PE[1:0]
00
01
10
11
Description
Low equalization (6 dB)
High equalization (12 dB)
Description
No pre-emphasis (0 dB)
Low pre-emphasis (2 dB)
Medium pre-emphasis (4 dB)
High pre-emphasis (6 dB)
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PP_OTO: High Speed (TMDS) Output Termination On/Off
Select Bit (For All TMDS Channels)
Table 24. PP_OTO Description
PP_OTO
0
1
PP_OCL: High Speed (TMDS) Output Current Level Select
Bit (For All TMDS Channels)
Table 25. TX_OCL Description
PP_OCL
0
1
Description
Output current set to 10 mA
Output current set to 20 mA
Description
Output termination off
Output termination on
AD8191A