TDA1220B

AM-FM QUALITY RADIO

The TDA1220B is a monolithic integrated circuit in

a 16-lead dual in-line package.

It is intended for quality receivers produced in large

quantities.

The functions incorporated are:

AM SECTION

– Preamplifier and double balanced mixer

– One pin local oscillator

– IF amplifier with internal AGC

– Detector and audio preamplifier

FM SECTION

– IF amplifier and limiter

– Quadrature detector

– Audio preamplifier

The TDA1220B is suitable up to 30MHz AM and for

FM bands (including 450KHz narrow band) and

features:

– Very constant characteristics (3V to 16V)

– High sensitivity and low noise

– Very low tweet

March 1993

BLOCK DIAGRAM

DIP-16 Plastic

(0.25)

ORDERING NUMBER : TDA 1220BK

– Sensitivity regulation facility (*)

– High recovered audio signal suited for stereo

decoders and radio recorders

– Very simple DC switching of AM-FM

– Low current drain

– AFC facility

(*) Maximum AM sensitivity can be reduced by means of a resistor

(5 to 12K

Ω) between pin 4 and ground.

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