TDA7427 - AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER
STMicroelectronics
General Description
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.
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TDA7427
AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER
ON-CHIP REFERENCE OSCILLATOR AND PROGRAMMABLE IF COUNTER VHF INPUT AND PRECOUNTER FOR FREQUENCIES UP TO 290MHz (SUITABLE FOR DAB 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 TWO OUTPUTS FOR FLEXIBILITY IN APPLICATION FULLY PROGRAMMABLE BY I2C BUS DESCRIPTION The TDA7427 is a PLL frequency synthesizer BLOCK DIAGRAM
DIP20
SO20
ORDERING NUMBERS: TDA7427(DIP20) TDA7427D (SO20)
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.
TDA7427 Datasheet
