Novel Approach to Voltage Adjustment of Low-noise Signaling in Power over Coax Circuits
Yutaka Uematsu, Soshi Shimomura, Yasuhiro Ikeda, Hidetatsu Yamamoto, Hideyuki Sakamoto · 2021
This paper proposes a power-supply-voltage adjustment method for low-noise signaling of in-vehicle highspeed communication systems involving cameras using a power over coax (PoC) circuit. We introduce a method of detecting the PoC filter degrading from the change in the equalizer parameters of serializer/deserializer (SerDes) LSIs and determine the appropriate set voltage value from their change points.