Title :
A four-channel narrow-band call progress detector
Author :
Levy, Scott ; Landsburg, G.
Author_Institution :
Silicon Systems, Inc., Nevada, CA, USA
Abstract :
A narrow band progress detector that responds simultaneously to bursts of four standard RS464 tones will be reported. Time-delayed AGC is used to compensate for the transient response of high selectivity((Q=25) switched capacity filters.
Keywords :
Capacitors; Chebyshev approximation; Detectors; Dynamic range; Filters; Floors; Frequency; Integrated circuit noise; Interference; Narrowband;
Conference_Titel :
Solid-State Circuits Conference. Digest of Technical Papers. 1985 IEEE International
Conference_Location :
New York, NY, USA
DOI :
10.1109/ISSCC.1985.1156804
