FM demodulation circuit

Details FM demodulation circuit FM demodulation circuit

1997-11-18

2000-02-01

Mis, David

Demodulators

Frequency modulation demodulator

Having specific distortion, noise or other interference...

329321, 329336, 329337, 455210, 455214, 455337, H03D 300, H03D 302

Patent

active

060207841

ABSTRACT:
An FM demodulation circuit includes a phase conversion circuit which converts a frequency variation of an input signal into a phase variation and has a variable conversion characteristic, and a control current source circuit which outputs, when the level of the input signal drops lower than a predetermined level, control current to vary the conversion characteristic of the phase conversion circuit so that the demodulation sensitivity may be raised.

REFERENCES:
patent: 3667060 (1972-05-01), Avins

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