37984

·ON-CHIP REFERENCE OSCILLATOR AND PROGRAMMABLE IF COUNTER
·VHF INPUT AND PRECOUNTER FOR FREQUENCIES UP TO 290MHz (SUITABLE FORDAB APPLICATION)
·HF INPUT FOR FREQUENCIES UP TO 64MHz (SHORT WAVE BAND)
·IN-LOCK DETECTOR FOR SEARCH/STOP STATION FUNCTION
·STAND-BY MODE FOR LOW POWER CONSUMPTION
·HIGH CURRENT SOURCE FOR 0.5ms LOCK-IN TIME
·DIGITAL PORT EXTENSION WITH SIX OUTPUTS FOR FLEXIBILITY IN APPLICATION
·FULLY PROGRAMMABLE BY I²C BUS

The 37984 is a PLL frequency synthesizer with an additional IF counting system that performs all the functions needed in a complete PLL radio tuning system for conventional and high speed RDS tuners. The 37984 has dedicated outputs for IN-LOCK detection and Search/Stop station.