Computer Programs for the Design of Active RC Filters.

This Report describes three Algol 68-R programs which may be used as aids to the design of active RC filters. Two programs calculate the performance of standard all-pole filter types, the first program calculating the attenuation and the second the group delay. The third calculations component values needed to implement the filter as a cascade connection of first or second order sections. Sensitivity and gain performance may also be calculated. Algorithms are described which ensure that where possible component values lie within specified bounds and take standard values. Specifications of the programs are given, together with examples of their use. Author