Title :
A VLSI sigma delta A/D converter for audio and signal processing applications
Author :
Thompson, Charles D.
Author_Institution :
Motorola, Austin, TX, USA
Abstract :
The use of sigma-delta has inherent advantages over other techniques and lends itself well to VLSI integration. A sigma-delta modulator for analog/digital conversion featuring third-order noise shaping and a two-stage multirate digital decimation filter is discussed. Design goals included 16-bit resolution and 100-kHz output sample rate. Die area has been kept to a minimum using a 1.5-μm CMOS process, and only a single +5 V supply is needed. The converter approaches the predicted theoretical signal-to-noise ratio
Keywords :
CMOS integrated circuits; VLSI; analogue-digital conversion; computerised signal processing; 1.5 micron; 5 V; CMOS process; VLSI sigma delta A/D converter; analog/digital conversion; audio processing; sigma-delta modulator; signal processing applications; signal-to-noise ratio; third-order noise shaping; two-stage multirate digital decimation filter; Delta modulation; Delta-sigma modulation; Linearity; Multi-stage noise shaping; Noise shaping; Quantization; Signal processing; Signal resolution; Signal to noise ratio; Very large scale integration;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266992
