AD8196 Analog Devices, AD8196 Datasheet - Page 17

• Manufacturer Part Number: AD8196
• Description: 2:1 HDMI/DVI Switch with Equalization
• Manufacturer: Analog Devices

Preliminary Data Sheet
RECEIVER SETTINGS REGISTER
RX_TO: High Speed (TMDS) Input Termination On/Off
Select Bit
Table 10. RX_TO Description
RX_TO
0
1
INPUT TERMINATION PULSE REGISTER
RX_PT[X]: High Speed (TMDS) Input Termination X
Pulse-On-Source Switch Select Bit
Table 11. RX_PT[X] Description
RX_PT[X]
0
1
Table 12. RX_PT[X] Mapping
RX_PT[X]
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Description
Input termination off
Input termination on (can be pulsed on and off
when source is switched, according to settings in
the input termination pulse register)
Description
Input termination for TMDS Channel X always
connected when source is switched
Input termination for TMDS Channel X
disconnected for approximately 100 ms when
source is switched
Corresponding Input TMDS Channel
A0
A1
A2
A3
B3
B2
B1
B0
PrA | Page 17 of 24
RECEIVE EQUALIZER REGISTER
RX_EQ[X]: High Speed (TMDS) Input X Equalization Level
Select Bit
Table 13. RX_EQ[X] Description
RX_EQ[X]
0
1
Table 14. RX_EQ[X] Mapping
RX_EQ[X]
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
TRANSMITTER SETTINGS REGISTER
TX_PE[1:0]: High Speed (TMDS) Output Pre-Emphasis
Level Select Bus (All TMDS Channels)
Table 15. TX_PE[1:0] Description
TX_PE[1:0]
00
01
10
11
X_PTO: High Speed (TMDS) Output Termination On/Off
Select Bit (All Channels)
Table 16. TX_PTO Description
TX_PTO
0
1
TX_OCL: High Speed (TMDS) Output Current Level Select
Bit (All Channels)
Table 17. TX_OCL Description
TX_OCL
0
1
Description
Low equalization (6 dB)
High equalization (12 dB)
Corresponding Input TMDS Channel
A0
A1
A2
A3
B3
B2
B1
B0
Description
No pre-emphasis (0 dB)
Low pre-emphasis (2 dB)
Medium pre-emphasis (4 dB)
High pre-emphasis (6 dB)
Description
Output termination off
Output termination on
Description
Output current set to 10 mA
Output current set to 20 mA
AD8196