Title :
A Monolithic ECL/I2L Phase-Locked Loop Frequency Synthesizer for AM/FM TV
Author :
Mueller, Keith J. ; Wu, Chao-Ping
Author_Institution :
National Semiconductor Corporation
Abstract :
Digital tuning systems are fast replacing the conventional mechanical systems in AM/FM and television receivers. The desirability of the digital approach is mainly due to the following operational features: *Precise tuning of station frequencies *Exact digital frequency display *Keyboard entry of desired frequency *Virtually unlimited station memory *Up/down scanning through the band *Station "search" (stop on next active station) *Power on to the last station *Easy option for time-of-day clock
Keywords :
Circuit optimization; Displays; Frequency synthesizers; Integrated circuit technology; Local oscillators; Mechanical variables control; Phase locked loops; TV receivers; Tuners; Tuning;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.1979.273294
