SNLU336 august 2023 TDP1204
2 Model Parameters
Figure 2-1 shows input and output AMI parameters in Keysight’s ADS tool. Note that all reserved parameters should not be adjusted.
Figure 2-1 Device Specific IBIS-AMI
Parameters in ADS ToolTable 2-1 defines TDP1204 IBIS-AMI model parameters.
Table 2-1 Model Parameters
| Model Parameter | Description |
|---|---|
| GLOBAL_LINR_EN | Global control for selecting between linear and limited redriver.
Linear is only supported in FRL model. 1: Linear mode 0: Limited mode (Default) |
| TX_AC_EN | Controls selection of TX ac-coupled or dc-coupled. Valid only for
FRL model. TMDS model is fixed for DC-coupled.TX. 1: AC-coupled 0: DC-coupled (Default) |
| EQ | EQ control: 0 is lowest and 15 is highest. Default is 0. |
| TXFFE | TxFFE control when device is in limited mode. Valid only for FRL
model. TMDS model does not support de-emphasis. 0: 0dB (Default) 4: -1.5dB 5: -2.5dB 6: -3.5dB 7: -4.8dB |
| VOD | VOD control when device is in limited mode. In linear mode, the
VOD is fixed at 1200mV. 1: Limited at -10% 3: Limited 1000mV (Default) 5: Limited + 10% |
| SLEW_8G10G12G | Controls slew rate for 8Gbps, 10Gbps, and 12Gbps FRL datarates
when device is configured in limited mode. Valid only for FRL
model. 6: Slower edge rate 7: Fastest edge rate (default) |
| SLEW_3G | HDMI 1.4 Slew rate control: Valid only for TMDS model. 2: slower 3: default slew rate 4: Faster slew rate |
| SLEW_6G | HDMI 2.0 Slew rate control control: Valid only for TMDS model 3: slower 4: default slew rate 5: faster slew rate |
| TERM | TX termination control: 0: No termination. Valid for TMDS model only. Use tx_term_NT.s4p with this setting. 1: 300-ohm termination. Valid for TMDS model only. Use tx_term_300.s4p with this setting. 3: 100-ohm termination. Use tx_term_100.s4p with this setting. |