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
reflections. This is especially helpful in designs with long pcb traces or when there is a FET
switch in the signal path.
Four levels of differential output voltage swing (VOD) and any
combination 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 solution for embedded link applications, such as the connection from the GPU to the notebook
internal panel. To adjust the output signal level adaptively during link training, the
implementation needs to control the device control inputs.
The SN75DP119 supports programmable integrated receiver equalization circuitry. This
equalization circuitry can be used to help improve signal integrity in applications where the input
link has a high level of insertion loss. The equalizer can be set to 3dB or 6dB equalization. The
equalizer can also be turned off.
The device is characterized for an extended operational temperature range from –40°C to
The SN75DP119 consumes between 64mW and 175mW depending on the selected mode of
operation. 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.
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