SAA6579 NXP Semiconductors, SAA6579 Datasheet

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SAA6579

Manufacturer Part Number
SAA6579
Description
Manufacturer
NXP Semiconductors
Datasheet

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Product specification
Supersedes data of January 1994
File under Integrated Circuits, IC01
DATA SHEET
SAA6579
Radio Data System (RDS)
demodulator
INTEGRATED CIRCUITS
1997 Feb 24

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SAA6579 Summary of contents

Page 1

... DATA SHEET SAA6579 Radio Data System (RDS) demodulator Product specification Supersedes data of January 1994 File under Integrated Circuits, IC01 INTEGRATED CIRCUITS 1997 Feb 24 ...

Page 2

... Feb 24 GENERAL DESCRIPTION The integrated CMOS circuit SAA6579 is an RDS demodulator. It recovers the additional inaudible RDS information which is transmitted by FM radio broadcasting. The data signal RDDA and the clock signal RDCL are provided as outputs for further processing by a suitable decoder (microcomputer) ...

Page 3

... AND SYNC Fig.1 Block diagram and application circuit. 3 Product specification 2 OSCI OSCO DDD OSCILLATOR QUALITY BIT AND GENERATOR DIVIDER BIPHASE DIFFERENTIAL SYMBOL DECODER DECODER TEST LOGIC AND OUTPUT SELECTOR SWITCH SSD MODE TEST SAA6579 QUAL 1 RDDA 2 RDCL 16 T57 15 MEH162 ...

Page 4

... T57 14 OSCO 13 OSCI 12 V DDD 11 V SSD 10 TEST 9 MODE 4 Product specification DESCRIPTION ) 1 16 QUAL RDCL RDDA 2 15 T57 V ref 3 14 OSCO MUX 4 13 OSCI SAA6579T V DDA DDD V SSA SSD CIN 7 10 TEST SCOUT 8 9 MODE MGD685 Fig.3 Pin configuration. SAA6579 ...

Page 5

... Equivalent to discharging a 200 pF capacitor via Equivalent to discharging a 100 pF capacitor via a 1.5 k series resistor. FUNCTIONAL DESCRIPTION The SAA6579 is a demodulator circuit for RDS applications. It contains a 57 kHz bandpass filter and a digital demodulator to regenerate the RDS data stream out of the multiplex signal (MPX). ...

Page 6

... +85 C amb kHz f < 45 kHz f < 20 kHz f > 70 kHz kHz kHz V = 5.0 V DDD V = 5.0 V DDD V = 5.5 V DDD 6 Product specification SAA6579 MIN. TYP. MAX. UNIT 3.6 5.0 5.5 V 3.6 5 200 mV 1 ...

Page 7

... DDD note 4 DDD 4 DDD 4 DDD 4 DDD amb +85 C amb amb +85 C amb 7 Product specification MIN. TYP. = 4.5 V 4.4 = 5.5 V 1187.5 57.0 = 0.4 V 1.5 = 4.1 V 1.6 = 0.4 V 5.9 = 4.1 V 5.3 4.332 50 30 8.664 50 30 SAA6579 MAX. UNIT V 0 kHz MHz MHz ...

Page 8

... QUAL 4 s 100 handbook, full pagewidth correct blocks (%) (1) ( (1) RDS + ARI (BK). (2) RDS only. 1997 Feb 24 842 s 421 s Fig.4 RDS timing diagram including a phase jump. 1 Fig.5 Typical RDS sensitivity. 8 Product specification SAA6579 MEH163 4 s MGD683 (RDS signal, RMS value) (mV) ...

Page 9

... REFERENCES JEDEC EIAJ MO-001AE 9 Product specification 3.9 8.25 9.5 2.54 7.62 3.4 7.80 8.3 0.15 0.32 0.37 0.10 0.30 0.31 0.13 0.33 EUROPEAN PROJECTION SAA6579 SOT38-1 ( max. 0.254 2.2 0.01 0.087 ISSUE DATE 92-10-02 95-01-19 ...

Page 10

... REFERENCES JEDEC EIAJ MS-013AA detail 10.65 1.1 1.1 1.4 0.25 0.25 10.00 0.4 1.0 0.42 0.043 0.043 0.055 0.01 0.01 0.39 0.016 0.039 EUROPEAN PROJECTION Product specification SAA6579 SOT162 ( 0.9 0.1 0 0.035 0.004 0.016 ISSUE DATE 92-11-17 95-01-24 ...

Page 11

... Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds 300 C. When using a dedicated tool, all other leads can be soldered in one operation within seconds between 270 and 320 C. 11 Product specification SAA6579 ...

Page 12

... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1997 Feb 24 12 Product specification SAA6579 ...

Page 13

... Philips Semiconductors Radio Data System (RDS) demodulator 1997 Feb 24 NOTES 13 Product specification SAA6579 ...

Page 14

... Philips Semiconductors Radio Data System (RDS) demodulator 1997 Feb 24 NOTES 14 Product specification SAA6579 ...

Page 15

... Philips Semiconductors Radio Data System (RDS) demodulator 1997 Feb 24 NOTES 15 Product specification SAA6579 ...

Page 16

Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. + ...

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