TDA7421 Datasheet PDF – AM/FM Tuner for Car Radio

Part Number : TDA7421

Function : AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATION

Package : TQFP 64 Pin

Manufacturers : STMicroelectronics

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TDA7421 datasheet

 

Description :

The TDA7421 is a high performance tuner circuit that integrates AM/FM sections, IF counter and PLL synthesizer on a single chip. Use of BICMOS technology allows the implementation of tuning functions with a minimum of external components.

Features

1. FRONT-END FOR AM/FM RECEIVERS
2. UP-CONVERSION ARCHITECTURE FOR AM
3. HIGH SPEED PLL WITH INLOCK DETECTOR FOR OPTIMIZED RDS APPLICATIONS
4. SINGLE FREQUENCY REFERENCE FOR AM/FM
5. AM/FM STATION DETECTOR
6. uP-CONTROLLED COMPENSATION OF EXTERNAL COMPONENTS SPREAD
7. ADJUSTABLE AUDIO MUTE

 

Pinout

 

The Automatic Gain Control (AGC) operates on different sensitivities and bandwidths in order to improve sensitivity and dynamic range. I2C bus allows to control selected functions of the tuner (AGC and amplifiers gain, PLL and counters operation modes).

Circuit

Other data sheets within the file : TDA7421N

TDA7421 Datasheet PDF Download

TDA7421 pdf