Signal conditioning circuit with a shared oscillator

Details Signal conditioning circuit with a shared oscillator Signal conditioning circuit with a shared oscillator

2011-08-02

2011-08-02

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synthesizer

C327S106000, C327S107000, C327S117000, C327S119000

Reexamination Certificate

active

07990186

ABSTRACT:
A circuit for signal conditioning including a first stage with a digital/analog converter, a second stage with an I/Q-modulator, and at least one third stage with a mixer. Instead of a multiplicity of independent oscillators, a shared oscillator is provided for the first, second, and third stages, from an output signal of which a respective oscillator signal and clock-pulse signal for each stage of the first, second, and third stages is derived. The oscillator signal and respective clock-pulse signal of the oscillator are supplied via a frequency divider to at least one stage of the first, second, and third stages, or the oscillator signal of the oscillator is supplied via a frequency multiplier to at least one stage. Also, the oscillator signal of the oscillator is supplied as a reference signal to a frequency synthesizer of at least one stage of the first, second, and third stages.

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International Preliminary Report on Patentability, PCT/EP2006/010611, Rohde & Schwarz GmbH & Co. KG, Sep. 4, 2008, pp. 1-6.

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