Title :
A comparison of noise-shaping clock generators for switched-capacitor filters
Author :
Zeng, Raymond W. ; Hurst, Paul J.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
Abstract :
A programmable clock generator for switched-capacitor filters (SCFs) that uses noise shaping to generate a wide range of sampling frequencies with fine resolution was described by Hurst and Rothenberg (see IEEE J. Solid-State Circuits, vol. 30, no. 4, p. 403-411, 1995). In this paper, alternative noise-shaping transfer functions are evaluated for the clock generator. Simulated and measured results are presented. Finally, a tone detector that uses a bandpass SCF driven by the clock generator with first-order noise shaping is described
Keywords :
circuit noise; jitter; pulse generators; pulse shaping circuits; switched capacitor filters; timing circuits; transfer functions; bandpass SC filter; first-order noise shaping; noise-shaping clock generators; noise-shaping transfer functions; programmable clock generator; switched-capacitor filters; tone detector; Circuit simulation; Clocks; Detectors; Filters; Frequency; Noise shaping; Sampling methods; Solid state circuits; Switching circuits; Transfer functions;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.539812
