TDA7427 Datasheet (ST Microelectronics) - AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER

TDA7427, AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER

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.

The device has dedic

® 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 DESCRIPT