JAJSEY1C April 2019 – March 2022 ADC12DJ5200RF
The device high-speed output drivers can pre-equalize the transmitted data stream by using pre-emphasis in order to compensate for the low-pass response of the transmission channel. Configurable pre-emphasis settings allow the output drive waveform to be optimized for different PCB materials and signal transmission distances. The pre-emphasis setting is adjusted through the serializer pre-emphasis setting SER_PE (in the serializer pre-emphasis control register). Higher values increase the pre-emphasis to compensate for more lossy PCB materials. This adjustment is best used in conjunction with an eye-diagram analysis capability in the receiver. Adjust the pre-emphasis setting to optimize the eye-opening for the specific hardware configuration and line rates needed.