Noise transfer from receiver to transmitter circuits of tranceivers through power supply network(PDN)

This paper presents a study on noise transfer from receiver to transmitter circuits of high-speed tranceivers through a commonly connected power delivery network (PDN) on package or printed circuit board (PCB). Receiver circuits like decision-feedback equalizer (DFE) are power hungry and can generate lot of current on the PDN. Jitter and noise measurements are performed to quantify the amount of noise generated in the receiver (RX) PDN and its impact on the transmitter (TX) when RX and TX share their PDN at the package. Power supply noise induced jitter is then simulated and correlated with measurements to evaluate PDN configuration with TX and RX PDN combined on PCB.