Method and apparatus for minimizing mismatch in a complex...

Details Method and apparatus for minimizing mismatch in a complex... Method and apparatus for minimizing mismatch in a complex...

H - Electricity

03

H

H03H 17/00 (2006.01) H03M 3/00 (2006.01)

Patent

CA 2262209

A complex filter minimizing mismatch error by averaging the mismatch error by integrating the real and imaginary input signals using the same integrator. A further advantage is that, as compared to known devices, the complex filter uses fewer number of components thereby reducing the consumed power. The complex filter may be used in a complex bandpass sigma-delta modulator, thereby increasing the performance of the sigma-delta modulator. The complex filter used in a sigma- delta modulator analog to digital converter increases performance of the analog to digital conversion since the mismatch noise is minimized. The complex bandpass sigma- delta modulator analog to digital converter include any number of complex filter stages.

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