TEF6624 Datasheet – Analog Car Radio Tuner

Part Number : TEF6624, TEF662x

Function : NXP low-IF analog car radio tuner

Pacakge : SO 32 Pin Type

Manufacturers : NXP Semiconductors.

Image

Description :

The TEF6624 is an AM/FM radio including Phase-Locked Loop (PLL) tuning system. The
system is designed in such a way, that it can be used as a world-wide tuner covering
common FM and AM bands for radio reception. All functions are controlled by the I2C-bus.
Besides the basic feature set it provides a good weak signal processing function and a
dynamic bandwidth control at FM reception.

Features

1. Backwards compatible with TEF6621; equal footprint, application and performance
2. Fully integrated RDS/RBDS demodulator with improved performance
3. RDS demodulator data output via I2C-bus; 32-bit buffer for reduced read out
4. RDS data available signalled by I2C-bus bit (polling)
5. FM tuner for Japan, Europe, US and OIRT reception

Other data sheets within the file : TEF6621, TEF6623, TEF6624T/V1,518

TEF6624 Datasheet PDF Download


TEF6624 pdf

 

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

ImageĀ :

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