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TDA7580 Datasheet(PDF) 2 Page - STMicroelectronics

Part # TDA7580
Description  FM/AM digital IF sampling processor
Download  39 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7580 Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
TDA7580
2/39
Contents
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Block diagram and electrical specifications . . . . . . . . . . . . . . . . . . . . . . 7
2.1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3
SAI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4
RDS SPI interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5
BSPI interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6
Inter processor transport interface for antenna diversity . . . . . . . . . . 26
7I2C timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1
24 bit DSP core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.2
DSP peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.3
Clock generation unit (CGU) and oscillator . . . . . . . . . . . . . . . . . . . . . . . 29
8.4
Stereo decoder (HWSTER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.5
Serial audio interface (SAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.6
I2C interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.7
Serial peripheral interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.8
High speed serial synchronous interface (HS3I) . . . . . . . . . . . . . . . . . . . 31
8.9
Tuner AGC keying DAC (KEYDAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.10
Asynchronous sample rate converter (ASRC) . . . . . . . . . . . . . . . . . . . . . 31
8.11
IF band pass
Σ Δ analogue to digital converter (IFADC) . . . . . . . . . . . . . 31
8.12
Digital down converter (DDC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.13
RDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.14
AM/FM Detector (CORDIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9
Application diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33


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