Title :
A 2.3 mW CMOS /spl Sigma//spl Delta/ modulator for audio applications
Author :
van der Zwan, E.J.
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
Abstract :
This audio-quality CMOS /spl Sigma//spl Delta/ modulator operates from a 3.3 V supply with 2.3 mW power consumption. The dynamic range is 96 dB over a 20-20000 Hz bandwidth and THD for a 1 kHz maximum input signal is -104 dB. A modulator with power consumption increased to 6.6 mW at the same supply voltage has 10l dB dynamic range and THD<-110 dB, proving the tradeoff between power consumption and performance.
Keywords :
CMOS integrated circuits; Hi-Fi equipment; modulators; sigma-delta modulation; 0.5 micron; 2.3 mW; 20 kHz; 20 to 20000 Hz; 3.3 V; CMOS /spl Sigma//spl Delta/ modulator; THD; audio applications; dynamic range; power consumption; 1f noise; Circuit noise; Clocks; Delta modulation; Dynamic range; Energy consumption; Filters; Quantization; Resistors; Transconductors;
Conference_Titel :
Solid-State Circuits Conference, 1997. Digest of Technical Papers. 43rd ISSCC., 1997 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3721-2
DOI :
10.1109/ISSCC.1997.585345
