CMOS signal threshold detector

Details CMOS signal threshold detector CMOS signal threshold detector

1988-06-17

1990-05-15

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

307351, H04B 112

Patent

active

049264427

ABSTRACT:
An improved CMOS signal magnitude detector (SMD) for accurately quantifying the peak-to-peak magnitude of a received signal is disclosed. The SMD includes a precision gain amplifier, positive and negative peak detectors and a switched capacitive amplifier. The recited components are coupled to form a combination circuit arrangement which receives a differential signal and outputs a single ended signal which is compared with a reference signal to provide a control signal when the differential signal is of a sufficient peak to peak voltage magnitude. The control signal may be used to gate the differential signal and generate an output signal representative of received data.

REFERENCES:
patent: 3838448 (1974-09-01), Garde et al.
patent: 3947769 (1976-03-01), Rousos et al.
patent: 4523107 (1985-06-01), Peterson
patent: 4631737 (1986-12-01), Davis et al.

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