TDA7330B Datasheet, PDF (1/9 Pages) STMicroelectronics – SINGLE CHIP RDS DEMODULATOR FILTER

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TDA7330B
SINGLE CHIP RDS DEMODULATOR + FILTER
HIGH PERFORMANCE, 57KHz BANDPASS
FILTER (8th ORDER)
FILTER ADJUSTMENT FREE AND WITHOUT
EXTERNAL COMPONENTS
PURELY DIGITAL RDS DEMODULATION
WITHOUT EXTERNAL COMPONENTS
ARI (SK INDICATION) AND RDS SIGNAL
QUALITY OUTPUT
4.332MHz CRYSTAL OSCILLATOR
(8.664MHz OPTIONAL)
LOW NOISE MIXED BIPOLAR/CMOS TECH-
NOLOGY
DESCRIPTION
The TDA7330B is a RDS demodulator. It recov-
ers the additional inaudible RDS information
which is transmitted by FM radio broadcasting
stations.
The output data signal (RDDA) and clock signal
(RDCL) can be further processed by a suitable
RDS decoder (microprocessor).
The device operates in accordance with the EBU
(European Broadcasting Union) specifications.
The IC includes a 2nd order antialiasing input fil-
BLOCK DIAGRAM
DIP20
SO20
ORDERING NUMBERS:
TDA7330B
TDA7330BD
ter, a 57KHz switched capacitor band pass filter,
a smoothing filter and cross detector, a bit rate
clock recovery circuit, a 57KHz PLL, BI-PHASE
PSK decoder, differential decoding circuit, ARI in-
dication and RDS signal quality output.
November 1999
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