Sidebar 1: The Timing Problem
For the mathematically inclined, the signal/noise ratio (SNR) in a digital system is affected by time-base jitter in the following manner:
SNR = 20 log10(2 T PI F Square Root(2 F0/FS))
where: T = RMS jitter
PI = 3.1416
F = signal frequency
F0 = bandwidth of noise measurement (20kHz)
FS = sampling frequency (352,800Hz for 8x oversampling)—Robert Harley
