ZHCSLM6A december 2021 – june 2023 TDP0604
PRODUCTION DATA
The TDP0604 provides pre-emphasis and de-emphasis on the data lanes allowing the output signal pre-conditioning to offset interconnect losses between the TDP0604 outputs and a TMDS receiver. Pre-emphasis and de-emphasis is not implemented on the clock lane. There are two methods to implement pre-emphasis, pin strapping or through I2C programming. TX pre-emphasis and de-emphasis control is only supported in limited mode.
When using pin strap mode, the TXPRE pin controls four different global pre-emphasis and de-emphasis values for all data lanes when TDP0604 is operating in HDMI 1.4 or HDMI 2.0. These pre-emphasis and de-emphasis values are described in Table 8-11.
TXPRE Pin | HDMI 1.4 or HDMI 2.0 |
---|---|
0 | 3.5 dB pre-emphasis |
R | -2.5 dB de-emphasis |
F | 0 dB |
1 | 6.0 dB pre-emphasis |