SLLSF57A August 2022 – April 2024 TMDS1204
PRODUCTION DATA
The TMDS1204 will level shift the 5V signaling level present on the HPD_IN pin to a lower voltage such as 1.8V or 3.3V levels on the HPD_OUT pin. The HPD_OUT supports both push-pull and open drain. The default operation is push-pull. Selection between push-pull and open drain is done through the HPDOUT_SEL register.
Table 7-2 lists how the VIO determines the output level of HPD_OUT when HPD_OUT is configured for push-pull operation. Please note push-pull operation is not supported for VIO less than 1.7V.
Open-drain operation is only supported when TMDS1204 is configured for I2C mode.
When EN pin is low, the HPD_OUT pin will be in a high impedance state. It is recommended to have a weak pull-down resistor (such as 220k) on HPD_OUT.