In Unit 8, the gain of a common-source stage with source resistor, which includes the effect of the output resistance, is shown to be [(8.36)]
This is designated here as avolo to emphasize that it is the constant low-frequency asymptotic gain. If the source-branch impedance is substituted for RS, this becomes
Equation 6.10
where fz is (6.5). This can be rearranged in the form of (6.4), which is
Equation 6.11
where the new pole frequency is
Equation 6.12
and avolo is (8.36).
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