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TDA7333
RDS/RBDS PROCESSOR
1
■ ■ ■ ■ ■
Features
3rd ORDER HIGH RESOLUTION SIGMA DELTA CONVERTER F...
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TDA7333
RDS/RBDS PROCESSOR
1
■ ■ ■ ■ ■
Features
3rd 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 radio broadcasting stations.
Figure 2. Block Diagram
Cref REF1
4
Cref REF3
2
Cref
16pF
Cxti
16pF
Cxto XTO VDDA
1
REF2
3
XTI
9 10
VSS
5
VDDD
7
OSCILLATOR
MPX
16
Cmpx
SIGMA DELTA converter
SINC4 filter
BANDPASS filter
INTERPOLATOR
sinc4reg
MPX
SCL_CLK SDA_DATAIN SA_DATAOUT CSN
11 12 13 14
sdaout sdain sck spi testreg tm resetn
MPX
TEST LOGIC & PIN MUX's
I2C/SPI interface
RDS demodulator & synchronisation
INTN
15
INTN
6
8
TM
RESETN
January 2005
Rev. 1 1/21
TDA7333
3
Pin Connection
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Figure 3. Pin Connection (Top view)
VDDA 1 REF3 2 REF2 3 REF1 4 VSS 5 TM 6 VDDD 7 RESETN 8 TDA7333
16 MPX 15 INTN 14 CSN 13 SA_DATAOUT 12 SDA_DATAIN 11 SCL_CLK 10 XTO 9 XTI...