A time-delay jitter-insensitive continuous-time bandpass /spl Delta//spl Sigma/ modulator architecture |
| |
Authors: | Pulincherry A Hufford M Naviasky E Un-Ku Moon |
| |
Affiliation: | Qualcomm Inc., San Diego, CA, USA; |
| |
Abstract: | In this paper, we present a new continuous-time bandpass delta-sigma (/spl Delta//spl Sigma/) modulator architecture with mixer inside the feedback loop. The proposed bandpass /spl Delta//spl Sigma/ modulator is insensitive to time-delay jitter in the digital-to-analog conversion feedback pulse, unlike conventional continuous-time bandpass /spl Delta//spl Sigma/ modulators. The sampling frequency of the proposed /spl Delta//spl Sigma/ modulator can be less than the center frequency of the input narrow-band signal. |
| |
Keywords: | |
|
|