Part Number: TDA7421
Function: AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATION
Package: TQFP 64 Pin
Manufacturer: STMicroelectronics
Image :
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).
Application Circuits :
Other data sheets are available within the file: TDA7421N
TDA7421 Datasheet PDF Download
