Title :
FMX stereo decoder with adjustment free 10 Hz detection and blend on pilot noise
Author :
Field, Thomas L.
Author_Institution :
Sprague Technol. Inc., Worcester, MA, USA
fDate :
8/1/1990 12:00:00 AM
Abstract :
An FMX stereo decoder integrated circuit that uses an adjustment-free countdown scheme for 10-Hz detection and a blend-on pilot noise system has been developed. It requires no adjustment or interface to a signal strength meter. Dual bandwidth loop, Walsh functions, 19-kHz pilot cancel, and multipath blanking are also features. A conventional stereo decoder without the FMX function is available
Keywords :
Hi-Fi equipment; Walsh functions; automatic gain control; demodulators; frequency modulation; integrated circuits; interference (signal); signal detection; 10 Hz; 19 kHz; FMX stereo decoder integrated circuit; Walsh functions; adjustment-free countdown scheme; blend-on pilot noise system; dual bandwidth loop; multipath blanking; noise AGC; pilot cancel; Automotive engineering; Circuit noise; Control systems; Decoding; Integrated circuit noise; Interference; Noise level; Noise reduction; Signal processing; Working environment noise;
Journal_Title :
Consumer Electronics, IEEE Transactions on
