Member level 2
I am testing a time to digital converter to measure its dynamic nonlinearity. The TDC takes as input two signals and calculates the difference between their rise edges and represents the result in digital format. For that purpose I need to generate two input signals whose timing difference between their rising edges varies according to a 400ps p-p sinusoid with a frequency of 100kHz. I then want to take FFT and observe the harmonics and also measure SNR. So how to generate such signals in a simulator? I am using cadence virtuoso as my simulation tool.