Title :
A stereo asynchronous sample-rate converter for digital audio
Author :
Adams, B. ; Kwan, T.
Author_Institution :
Analog Devices Inc., Wilmington, MA, USA
Abstract :
The design of an asynchronous sample-rate converter for digital audio applications is presented. Input and output sample rates are sensed automatically. The converter can be slaved to both input and output sample clocks that need not be synchronous to the chip´s master clock. Sample rate ratio changes of up to 2:1 in either direction can be accommodated. Measured output SNR while driven by a 10 kHz 20-bit sine wave is 102 dB. This 200 K transistor chip is fabricated using a 0.8 /spl mu/m CMOS technology. Power dissipation is 150 mW at 16 MHz.
Keywords :
CMOS integrated circuits; Hi-Fi equipment; audio signals; data conversion; digital signal processing chips; interpolation; 0.8 micron; 150 mW; 16 MHz; CMOS technology; DSP chip; digital audio; monolithic IC; sample rate ratio change; sample-rate converter; stereo asynchronous converter; CMOS integrated circuits; Digital signal processing chips; Interpolation; Sampled-data circuits;
Conference_Titel :
VLSI Circuits, 1993. Digest of Technical Papers. 1993 Symposium on
Conference_Location :
Kyoto, Japan
DOI :
10.1109/VLSIC.1993.920529
