TDA7333 Datasheet, PDF (1/21 Pages) STMicroelectronics – RDS/RBDS PROCESSOR

TDA7333
RDS/RBDS PROCESSOR
1 Features
■ 3^rd ORDER HIGH RESOLUTION SIGMA
DELTA CONVERTER FOR MPX SAMPLING
■ DIGITAL DECIMATION AND FILTERING
STAGES
■ DEMODULATION OF EUROPEAN RADIO
DATA SYSTEM (RDS)
■ DEMODULATION OF USA RADIO
BROADCAST DATA SYSTEM (RBDS)
■ AUTOMATIC GROUP- AND BLOCK
SYNCHRONIZATION WITH FLYWHEEL
MECHANISM
■ ERROR DETECTION AND CORRECTION
■ PROGRAMMABLE INTERRUPT SOURCE
(RDS BLOCK,TA)
■ I²C/SPI BUS INTERFACE
■ COMMON QUARTZ FREQUENCY 8.55 MHz
or 8.664MHz
Figure 1. Package
TSSOP16
Table 1. Order Codes
Part Number
TDA7333
Package
TSSOP16
■ 3.3V POWER SUPPLY, 0.35 µm CMOS
TECHNOLOGY
2 Description
The TDA7333 is a RDS/RDBS signal processor,
intended for recovering the inaudible RDS/RBDS
informations which are transmitted on most FM ra-
dio broadcasting stations.
Figure 2. Block Diagram
Cref Cref Cref
REF1 REF2 REF3
4
3
2
Cxti
Cxto
16pF
16pF
XTI
9
XTO
10
VDDA
1
VSS
5
VDDD
7
OSCILLATOR
MPX
16
Cmpx
SIGMA DELTA
converter
SINC4
filter
sinc4reg
BANDPASS
filter
INTERPOLATOR
MPX
SCL_CLK 11
SDA_DATAIN 12
SA_DATAOUT 13
CSN 14
January 2005
TEST LOGIC
&
PIN MUX's
tm
resetn
6
8
TM
RESETN
sdaout
sdain _I2C/SPI
sck _interface
spi
testreg
MPX
RDS
demodulator &
synchronisation
INTN
15 INTN
Rev. 1
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