Environmental Engineering Reference
In-Depth Information
amplifiers is represented by the thermal noise of an equivalent resistor
at the non-inverting input terminal of the operational amplifier with the
resistance The output noise power spectrum is obtained
using the method presented in this section and the results are shown in
Fig. 6.10, together with the measurement results extracted from [57].
An excellent agreement is obtained.
7.
Clock Jitter
Clock jitter causes clock period to deviate from its nominal value
to in a random manner, where is a random variable
with For practical circuits, usually holds. To
analyze the effect of clock jitter on the response of periodically switched
linear circuits, a change in the clock period is represented by a random
variation in the step size
T
of the sampled-data simulation, as shown in
Fig.6.11. Note that
where
M
is the number of steps that sampled-data simulation algorithm
takes in one clock period. The step size is changed from
T
to
for the
step, where
and
Subsequently, both
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