In-phase and quadrature sampling circuit

Details In-phase and quadrature sampling circuit In-phase and quadrature sampling circuit

1995-04-07

1997-04-15

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Phase shift by less than period of input

327552, 327557, 3647241, 375261, H03C 300, H03H 1116

Patent

active

056213450

ABSTRACT:
A circuit that provides samples of in-phase and quadrature components of an input waveform includes an oversampling ADC that receives the input waveform and converts the input waveform to digital samples at an oversampling rate. A first digital filter, coupled to the ADC, receives the digital samples from the ADC and provides the in-phase component samples of the input waveform. A second digital filter, coupled to the ADC, receives the digital samples from the ADC and provides the quadrature component samples of the input waveform.

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