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Details, datasheet, quote on part number:UPC2539GS
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Datasheet text preview:
PRELIMINARY DATA SHEET
Bi-CMOS INTEGRATED CIRCUIT
µPC2539
RDS DATA DEMODULATOR IC
The µPC2539 is data demodulator IC for FM receiver applying to Radio Data System in European countries and Radio Broadcasting Data System in USA. This IC carries out to extract 57kHz RDS signal from FM multiplex signal, demodulate data-stream, recover bit-rate-clock, and discriminate SK signal in ARI system.
FEATURES
· · · · · Adjustment-free Built-in 57kHz band-pass-filter consist of switched capactiors. High sensitivity. Employing digital PLL. Small outline plastic package
ORDERING INFORMATION
Part Number Package 24-pin plastic SOP (300 mil)
µP C 2 5 3 9 G S
BLOCK DIAGRAM
24 23 22 21 20 19 18 17 16 15 14 13
57kHz BPF COSTAS
BIPHASE DECODER
SK DET
DIFFERENTIAL DECODER
CLOCK RECOVERY
OSC
1
2
3
4
5
6
7
8
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10
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The information in this document is subject to change without notice. Document No. S11570EJ1V0DS00 (1st edition) Date Published May 1996 P Printed in Japan
©
1996
µPC2539
PIN CONFIGURATION (Top View)
VDD TEST1 TEST2 CLK OUT DATA OUT RDS IND SK IND TEST3 TEST4 DGND OSC IN OSC OUT
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VCC TEST9 TEST8 TEST7 BPF IN REF BPF OUT DSB IN AGND OP. CTL TEST6 TEST5
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µPC2539
PIN FUNCTIONS
P i n no. 1 2 3 4 5 6 P i n name V DD TEST1 TEST2 C L K OUT D A T A OUT R D S IND P o w e r Supply for Digital Circuit P i n for Test : Normally connect to GND. P i n for Test : Normally be open. B i t - R a t e - C l o c k Output Pin R D S Data Output Pin R D S Idenrification Indicator : When RDS signal is detected, the output voltage becomes t o Low level. S K Identification Indicator : When SK signal is detected, the output voltage becomes to L o w level. P i n for Test : Normally connect to GND. P i n for Test : Normally connect to GND. G N D for Digital Circuit O s c i l l a t o r Input Pin O s c i l l a t o r Output Pin P i n for Test : Normally be open. P i n for Test : Normally connect to GND. O p e r a t i o n / S t o p control Pin : High:Operation mode, Low:Stop mode G N D for Analog Circuit D S B Demodulator Input Pin B a n d - P a s s - F i l t e r Output Pin R e f e r e n c e Voltage for BPF B a n d - P a s s - F i l t e r Input Pin P i n for Test : Normally connect to GND. P i n for Test : Normally connect to GND. P i n for Test : Normally connect to GND. P o w e r Supply for Analog Circuit Function
7
S K IND
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
TEST3 TEST4 DGND O S C IN O S C OUT TEST5 TEST6 OP.CTL AGND D S B IN B P F OUT REF B P F IN TEST7 TEST8 TEST9 V CC
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