Single-stage oscillator having low-impedance feedback port

Details Single-stage oscillator having low-impedance feedback port Single-stage oscillator having low-impedance feedback port

1982-10-21

1985-05-28

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331177V, 332 16T, 332 30V, H03B 536, H03C 322

Patent

active

045203261

ABSTRACT:
A single-crystal oscillator comprising a single transistor and a capacitor divider connected in a feedback path, which includes the crystal input and output ports, between the collector and base of the transistor, thereby to provide a low-impedance input port to the crystal. The impedance of the crystal output port, which is connected to the base of the transistor, is also low. As a result of the low crystal input and output port impedances, the oscillator is capable of operating without any significant levels of spurious crystal frequencies, and can be switched between crystal and voltage-controlled modes of operation without frequency pull or lock-up to the crystal when operating in the voltage-controlled mode.

REFERENCES:
patent: 3378790 (1968-04-01), Bray
patent: 3543186 (1970-11-01), Flaig
patent: 3728480 (1973-04-01), Baer
Doyle, "A Comparison of Solid State Sub-Carrier Oscillators for Color TV Receivers", IEEE Transactions on Broadcast and Television Receivers, Feb. 1970, pp. 37-42.

Affiliated with

Also associated with

Rating

Single-stage oscillator having low-impedance feedback port does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Single-stage oscillator having low-impedance feedback port, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-stage oscillator having low-impedance feedback port will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-870997