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BANDPASS_ANSWER_FILTER

2017-02-24 06:29  
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BANDPASS_ANSWER_FILTER
Provides gain of 15 dB over bandwidth of 1020 to 1320 Hz for low-speed modem system using Motorola MC6860 IC. Attenuation is 35 dB at 2225 Hz, as required for answer-only modem system. Equations for values of filter components are given.-J. M. DeLaune, Low-Speed Modem System Design Using the MC6860, Motorola, Phoenix, AZ, 1975, AN-747, p 10.