Texas Instruments SN75DP119 DP119 Embedded DisplayPort (eDP) Repeater IC Chip

The SN75DP119 is a 1-lane or 2-lane embedded DisplayPort (eDP) repeater that regenerates the DP high speed digital link. The device compensates for pcb related frequency loss and signal reflecons. This is especially helpful in designs with long pcb traces or when there is a FET switch in the signal path.

Four levels of differenal output voltage swing (VOD) and any combinaon of pre-emphasis using these VOD levels are supported. The output swing and pre-emphasis are configured through device control inputs. The available output swing levels are 300mVPP, 400mVPP, 600mVPP or 750mVPP. Therefore, the output pre-emphasis level can be configured to 0dB, 2.0dB, 2,5dB, 3.5dB, 5.5dB, 6dB, or 8dB. This is a good soluon for embedded link applicaons, such as the connecon from the GPU to the notebook internal panel. To adjust the output signal level adapvely during link training, the implementaon needs to control the device control inputs.

The SN75DP119 supports programmable integrated receiver equalizaon circuitry. This equalizaon circuitry can be used to help improve signal integrity in applicaons where the input link has a high level of inseron loss. The equalizer can be set to 3dB or 6dB equalizaon. The equalizer can also be turned off.

The device is characterized for an extended operaonal temperature range from -40°C to 85°C.

The SN75DP119 consumes between 64mW and 175mW depending on the selected mode of operaon. The device also supports an ultra low power standby mode. In this mode, the outputs are disabled and the device draws less then 700µW of power.