Switched capacitor filters for a 1200 baud FFSK modem
Abstract
The design of two 8th order switched capacitor filters for an FFSK modem is described. The response of the filters in the passband is not made flat, in order to optimize the signal to noise ratio of the transmission channel. The design of passive prototypes and the criteria for the choice of the best passive and active topologies are described. Computer simulation results of the performances of the SC filters are given.
- Publication:
-
Annales des Telecommunications
- Pub Date:
- June 1985
- Bibcode:
- 1985AnTel..40..235C
- Keywords:
-
- Bandpass Filters;
- Capacitors;
- Frequency Shift Keying;
- Modems;
- Network Synthesis;
- Equivalent Circuits;
- Frequency Response;
- High Pass Filters;
- Radio Attenuation;
- Electronics and Electrical Engineering