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AD8190ACPZ-R7 Datasheet(PDF) 17 Page - Analog Devices |
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AD8190ACPZ-R7 Datasheet(HTML) 17 Page - Analog Devices |
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17 / 24 page ![]() AD8190 Rev. 0 | Page 17 of 24 RECEIVER SETTINGS REGISTER RX_TO: High Speed (TMDS) Input Termination On/Off Select Bit Table 10. RX_TO Description RX_TO Description 0 Input termination off 1 Input termination on (can be pulsed on and off when source is switched, according to settings in the input termination pulse register) 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] Description 0 Input termination for TMDS Channel X always connected when source is switched 1 Input termination for TMDS Channel X disconnected for approximately 100 ms when source is switched Table 12. RX_PT[X] Mapping RX_PT[X] Corresponding Input TMDS Channel Bit 0 A0 Bit 1 A1 Bit 2 A2 Bit 3 A3 Bit 4 B3 Bit 5 B2 Bit 6 B1 Bit 7 B0 RECEIVE EQUALIZER REGISTER RX_EQ[X]: High Speed (TMDS) Input X Equalization Level Select Bit Table 13. RX_EQ[X] Description RX_EQ[X] Description 0 Low equalization (6 dB) 1 High equalization (12 dB) Table 14. RX_EQ[X] Mapping RX_EQ[X] Corresponding Input TMDS Channel Bit 0 A0 Bit 1 A1 Bit 2 A2 Bit 3 A3 Bit 4 B3 Bit 5 B2 Bit 6 B1 Bit 7 B0 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] Description 00 No pre-emphasis (0 dB) 01 Low pre-emphasis (2 dB) 10 Medium pre-emphasis (4 dB) 11 High pre-emphasis (6 dB) X_PTO: High Speed (TMDS) Output Termination On/Off Select Bit (All Channels) Table 16. TX_PTO Description TX_PTO Description 0 Output termination off 1 Output termination on TX_OCL: High Speed (TMDS) Output Current Level Select Bit (All Channels) Table 17. TX_OCL Description TX_OCL Description 0 Output current set to 10 mA 1 Output current set to 20 mA |
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