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TDA7580

July 2002

This is preliminary information on a new product now in development. Details are subject to change without notice.

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FM/AM IF SAMPLING DSP

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ON-CHIP ANALOGUE TO DIGITAL

CONVERTER FOR 10.7MHz IF SIGNAL

CONVERSION

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SOFTWARE BASED CHANNEL EQUALIZATION

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FM ADJACENT CHANNEL SUPPRESSION

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RECEPTION ENHANCEMENT IN MULTIPATH

CONDITION

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STEREO DECODER AND WEAK SIGNAL

PROCESSING

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2 CHANNELS SERIAL AUDIO INTERFACE

(SAI) WITH SAMPLE RATE CONVERTER

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RDS FILTER, DEMODULATOR & DECODER

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INTER PROCESSOR TRANSPORT

INTERFACE FOR ANTENNA AND TUNER

DIVERSITY

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FRONT-END AGC FEEDBACK

DESCRIPTION

The TDA7580 is an integrated circuit implementing

an advanced mixed analogue and digital solution to

perform the signal processing of a AM/FM channel.

The HW&SW architecture has been devised so to

have a digital equalization of the FM/AM channel;

hence a real rejection of adjacent channels and any

other signals interfering with the listening of the de-

sired station. In severe Multiple Paths conditions, the

reception is improved to get the audio with high qual-

ity.

TQFP64

ORDERING NUMBER: TDA7580

PRODUCT PREVIEW

FM/AM DIGITAL IF SAMPLING PROCESSOR

BLOCK DIAGRAM

A/D

SAI1

SAI0

SRC

I2C/SPI

DAC

CGU

Oscillator

I2C/SPI

HS3I

RDS

IF Digital

Signal Processor