TDA7580 Datasheet

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TDA7580

FM/AM DIGITAL IF SAMPLING PROCESSOR

PRODUCT PREVIEW

s

s

s

s

s

s

s

FM/AM IF SAMPLING DSP

ON-CHIP ANALOGUE TO DIGITAL

CONVERTER FOR 10.7MHz IF SIGNAL

CONVERSION

SOFTWARE BASED CHANNEL EQUALIZATION

FM ADJACENT CHANNEL SUPPRESSION

RECEPTION ENHANCEMENT IN MULTIPATH

CONDITION

STEREO DECODER AND WEAK SIGNAL

PROCESSING

2 CHANNELS SERIAL AUDIO INTERFACE

(SAI) WITH SAMPLE RATE CONVERTER

I

2

C AND BUFFER-SPI CONTROL INTERFACES

RDS FILTER, DEMODULATOR & DECODER

INTER PROCESSOR TRANSPORT

INTERFACE FOR ANTENNA AND TUNER

DIVERSITY

FRONT-END AGC FEEDBACK

TQFP64

ORDERING NUMBER: TDA7580

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.

s

s

s

s

BLOCK DIAGRAM

A/D

RDS

I2C/SPI

I2C/SPI

HS3I

IF Digital

Signal Processor

SAI1

DAC

SAI0

CGU

Oscillator

SRC

July 2002

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

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