NI 9233 Operating Instructions and Specifications
12
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The relative phases of these signals also have a
freq
u
ency-dependent delay. The variation in the phase delay with
freq
u
ency is called the phase nonlinearity. Fig
u
re 6 shows the
phase nonlinearity for data rates above 25.65 kS/s and less than or
eq
u
al to 25.65 kS/s. The phase nonlinearity scales directly with the
oversample rate, so the two c
u
rves normalize the signal freq
u
ency
to the data rate.
