Abstract:This paper reports the system-level design of a reconfigurable continuous-time sigma-delta modulator that is capable to perform the analog-to-digital conversion for GSM, LTE5 and WLAN wireless standards. The modulator architecture consists of a third-order loop filter using feed-forward summation topology and a 4-bit internal quantizer. The modulator coefficients were directly synthesized in the continuoustime domain which provides a more efficient modulator in terms of noise shaping, efficiently placing the z… Show more
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