[sdiy] how to calculate cutoff in an OTA filter?

[Bernard Arthur Hutchins, Jr]

Regarding integrator gain/frequency

An analog integrator SEEMS to have a transfer function T(s) = A/sRC where RC is a time constant and A is a SUPPOSED ”gain”, BUT it is a one-parameter term (A/RC)(1/s) – an unending/unbending downward 45 degree slope which can be thought of as varying up/down (gain) OR left/right (frequency):

http://electronotes.netfirms.com/AN353.pdf

It’s all one thing!

-Bernie


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