# Active-filter synthesis
# Scope: Equal-R equal-C Sallen-Key natural frequency; Q supplied by chosen gain.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

resistance = 10000 ohm
capacitance = 10 nF
gain = 1.586

frequency := 1/(2*pi*resistance*capacitance) [Hz]
quality := 1/(3-gain)

check Q example range: quality <= 1

scenario alternative: resistance = 8000 ohm