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S1A0905 Datasheet(PDF) 2 Page - Samsung semiconductor

Part No. S1A0905
Description  RDS DEMODULATOR IC
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Maker  SAMSUNG [Samsung semiconductor]
Homepage  http://www.samsung.com/Products/Semiconductor
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S1A0905 Datasheet(HTML) 2 Page - Samsung semiconductor

   
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S1A0905
RDS DEMODULATOR IC
2
Preliminary
DESCRIPTIONS
The S1A0905 is a RDS demodulator. It recovers the RDS data which is transmitted by FM radio broadcasting. The
device operates in accordance with the EBU(European Broadcasting Union) specifications.
The IC includes a two stage antialiasing filter, a 57kHz switched capacitor bandpass filter, a comparator, a 57kHz
carrier recovery circuit, a bit rate clock recovery circuit, BPSK decoder, differential decoding circuit, and RDS signal
quality output.
BLOCK DIAGRAM
Smoothing filter & Comparator
BPSK
BPSK
Recovered clock
RDS DEMODULATOR
MUX
VREF
VDDA
VSSA
COMP
QUAL(High or Low)
DATAO
CLKO
XOSCO
XOSCI
4.332MHz
20pF
20pF
2'nd Antialiasing Filter
Switched capacitor filter
VSS
+5.0V
VDD
RSTB
TEST
TIN
BIAS
8'th order
SCF
BGR
Oscillator &
Divider
Carrier
Recovery
Clock
Recovery
PLL
1.1875kHz
Biphase
Decoder
Differential
Decoder


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