Title :
Design ofA 16-bit Stereo Audio Σ Δ A/D Converter
Author :
Chen Lei ; Zhao Yuanfu ; Gao Deyuan ; Wen Wu ; Wang Zongmin ; Zhu Xiaofei ; Peng Heping
Author_Institution :
Aviation, Microelectronic Center, Northwestern Polytechnical University, Xi´An, China. E-mail: chenleinpu@yahoo.com
Abstract :
This paper describes a 16-bit stereo audio ΣΔA/D converter. It consists of two identical novel stability fifth-order switched capacitor ΣΔ modulators using dynamic dither scheme, bandgap circuits and a decimation digital filter. A new multistage comb filter was used for the front end decimation filter. The ADC was implemented in 0.5-μm 5-V CMOS technology. The chip die area occupies only 4.1 *2.4mm2and dissipates 90mW.
Keywords :
Capacitors; Circuits; Clocks; Degradation; Digital filters; Digital modulation; Feedback control; Output feedback; Stability; Switches;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2005 IEEE Conference on
Conference_Location :
Howloon, Hong Kong
Print_ISBN :
0-7803-9339-2
DOI :
10.1109/EDSSC.2005.1635359
