Title :
A high-quality analog oscillator using oversampling D/A conversion techniques
Author :
Lu, A.K. ; Roberts, G.W. ; Johns, D.A.
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
A high-quality analog oscillator designed specifically for audio applications is described. Except for a rather imprecise low-pass filter and a 1-b digital-analog converter, the proposed circuit is entirely digital, providing accurate control over its oscillation frequency and amplitude. Experimental results indicate an effective dynamic range of approximately 70 dB, equaling the behavior of a Hewlett-Packard HP3254A high-performance signal generator
Keywords :
digital-analogue conversion; oscillators; amplitude; audio applications; delta-sigma modulation; dynamic range; high-quality analog oscillator; oscillation frequency; oversampling; oversampling D/A conversion techniques; Capacitors; Circuits; Delta-sigma modulation; Digital filters; Equations; Frequency; IIR filters; Inductors; Oscillators; Resonator filters;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393968
