AD8197A-EVALZ Analog Devices, AD8197A-EVALZ Datasheet - Page 20

• Manufacturer Part Number: AD8197A-EVALZ
• Description: 4:1 HDMI/DVI Switch with Equalization; Package: EVALUATION BOARDS; No of Pins: -; Temperature Range: Industrial
• Manufacturer: Analog Devices

AD8197A
RECEIVE EQUALIZER REGISTER 1 AND REGISTER 2
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
Bit 8
Bit 9
Bit 10
Bit 11
Bit 12
Bit 13
Bit 14
Bit 15
Description
Low equalization (6 dB)
High equalization (12 dB)
Corresponding Input TMDS Channel
B0
B1
B2
B3
A0
A1
A2
A3
C3
C2
C1
C0
D3
D2
D1
D0
Rev. 0 | Page 20 of 28
TRANSMITTER SETTINGS REGISTER
TX_PE[1:0]: High Speed (TMDS) Output Pre-Emphasis
Level Select Bus (For All TMDS Channels)
Table 15. TX_PE[1:0] Description
TX_PE[1:0]
00
01
10
11
TX_PTO: High Speed (TMDS) Output Termination On/Off
Select Bit (For All Channels)
Table 16. TX_PTO Description
TX_PTO
0
1
TX_OCL: High Speed (TMDS) Output Current Level Select
Bit (For All Channels)
Table 17. TX_OCL Description
TX_OCL
0
1
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