Title :
A noise-shaping SC sine-wave oscillator
Author :
Dominguez, M.A. ; Ausin, J.L. ; Duque-Carillo, J.F. ; Torelli, G.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Extremadura, Badajoz
Abstract :
This paper describes an area-efficient switched- capacitor sine-wave oscillator for on-chip analog testing. At the core of the oscillator is a bandpass filter (BPF) whose input signal is generated by using a noise-shaping modulation scheme. As a result, the spectral content of the input signal is improved with respect to a conventional BPF-based oscillator and, hence, the spurious-free dynamic range of the sine-wave signal is enhanced. Results from a 0.35-mum CMOS design are presented.
Keywords :
CMOS analogue integrated circuits; band-pass filters; capacitors; integrated circuit design; integrated circuit noise; oscillators; waveform generators; CMOS design; area-efficient switched- capacitor sine-wave oscillator; bandpass filter; noise-shaping modulation; on-chip analog testing; sine-wave signal; Band pass filters; Circuit testing; Dynamic range; Electronic equipment testing; Frequency conversion; Frequency synchronization; Noise shaping; Oscillators; Signal generators; Spectral analysis;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4542051
