TDA7580 Datasheet, PDF (1/31 Pages) STMicroelectronics – FM/AM DIGITAL IF SAMPLING PROCESSOR

TDA7580
FM/AM DIGITAL IF SAMPLING PROCESSOR
PRODUCT PREVIEW
s FM/AM IF SAMPLING DSP
s ON-CHIP ANALOGUE TO DIGITAL
CONVERTER FOR 10.7MHz IF SIGNAL
CONVERSION
s SOFTWARE BASED CHANNEL EQUALIZATION
s FM ADJACENT CHANNEL SUPPRESSION
s RECEPTION ENHANCEMENT IN MULTIPATH
CONDITION
s STEREO DECODER AND WEAK SIGNAL
PROCESSING
s 2 CHANNELS SERIAL AUDIO INTERFACE
(SAI) WITH SAMPLE RATE CONVERTER
s I²C AND BUFFER-SPI CONTROL INTERFACES
s RDS FILTER, DEMODULATOR & DECODER
s INTER PROCESSOR TRANSPORT
INTERFACE FOR ANTENNA AND TUNER
DIVERSITY
s 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.
BLOCK DIAGRAM
A/D
HS3I
DAC
CGU
Oscillator
RDS
I2C/SPI
I2C/SPI
IF Digital
SAI1
Signal Processor
SAI0
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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