Amplitude-controlled oscillator circuit and method for...

Details Amplitude-controlled oscillator circuit and method for... Amplitude-controlled oscillator circuit and method for...

2007-01-30

2007-01-30

Pascal, Robert (Department: 2817)

Oscillators

Amplitude control or stabilization

Automatic

C331S074000

Reexamination Certificate

active

11037381

ABSTRACT:
An amplitude-controlled oscillator circuit includes an oscillator for providing a frequency signal having a controllable signal amplitude, a divider circuit for a frequency division of the frequency signal, a minimum amplitude of the frequency signal being associated to the divider circuit and the divider circuit being formed to output a divided frequency signal having a predetermined quality when the signal amplitude is greater than or equal to the minimum amplitude. In addition, the amplitude-controlled oscillator circuit includes a controller for controlling the signal amplitude of the frequency signal, the controller being formed to control the signal amplitude such that it is greater than or equal to the minimum amplitude. It is possible by means of such an amplitude-controlled oscillator circuit to ensure in a simple and low-cost manner that the divided frequency signal has a predetermined quality for example within a wide temperature range.

REFERENCES:
patent: 4245350 (1981-01-01), Moore
patent: 6483391 (2002-11-01), Magoon et al.
patent: 6603360 (2003-08-01), Kim et al.
patent: 7023285 (2006-04-01), Nord et al.
Mazouffre, O, et al., “A 5 GHz Low-Power Quadrature SiGe VCO with Automatic Amplitude Control,” IEEE BCTM, 2003, pp. 57-60.

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