AM

CD1691CB Datasheet PDF – Monolithic FM AM radio circuit

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Part Number: CD1691CB

Function: Highly integrated single-chip fewer external components FM / AM radio IC

Package: SOIC 28 Pin Type

Manufacturer: Wuxi China Resources Silicon Microelectronics

Image :
CD1691CB image pinout

Description

It is a monolithic FM / AM radio integrated circuit with low integration of peripheral components

Features

1. Small quiescent current when VCC = 3V FM I CCQ = 5.3 mA, AM, I CCQ = 3.4 mA typ.
2. With FM / AM selector switch
3. Built AFC variable capacitance
4. Contained RF AGC IF AGC
5. Tuning LED Driver
6. Electronic volume control FM Mute

Pinout :

CD1691CB datasheet

Other data sheets are available within the file: CD1691

CD1691CB Datasheet PDF Download

CD1691CB pdf

 

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TDA7421N Datasheet PDF – AM/FM Tuner for Car Radio – ST

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Part Number: TDA7421N

Function: HIGH PERFORMANCE FRONT-END IC FOR AM/FM RECEIVER

Package: TQFP64

Manufacturer: STMicroelectronics

Image :

TDA7421N datasheet

 

Description

The TDA7421N is a high-performance tuner circuit which integrates AM and FM sections, PLL frequency sinthesizer and IF counter on a single chip.

Use of BICMOS technology allows the implementation of tuning functions with a minimum of external components.Value spread of external components can be fully compensated by means of on-chip electrical adjustment controlled by external µP.

Features

1. HIGH PERFORMANCE FRONT-END IC FOR AM/FM RECEIVERS
2. FULLY INTEGRATED HIGH-SPEED PLL FOR OPTIMIZED RDS Applications
3. FM MPX/AM AUDIO OUTPUT, 450kHz AM IF OUTPUT FOR STEREO AM Applications
4. AM DOUBLE CONVERSION ARCHITECTURE
5. AM/FM STATION DETECTOR AND DIGITAL IF-COUNTER

components

AM Test Circuit

components

Other data sheets are available within the file: TDA7421

TDA7421N Datasheet PDF Download

TDA7421N pdf