SAA6579 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

SAA6579

Radio Data System (RDS) demodulator

Philips Electronics 

Philips Semiconductors

Radio Data System (RDS) demodulator

BLOCK DIAGRAM

Product specification

SAA6579

handbook, full pagewidth

47 pF

4.332/8.664 MHz

82 pF

+5 V

2.2 k Ω

0.1 µF

OSCI

13

OSCO

14

V DDD

12

MPX

signal

MUX 4

330 pF

SCOUT 8

ANTI-

ALIASING

FILTER

560 pF

CIN 7

CLOCKED

COMPARATOR

+5 V VDDA 5

0.1 µF

Vref 3

VP1

REFERENCE

VOLTAGE

2.2 µF

6

VSSA

57 kHz

BANDPASS

(8th ORDER)

RECONSTRUCTION

FILTER

OSCILLATOR

AND

DIVIDER

QUALITY BIT 1 QUAL

GENERATOR

COSTAS LOOP

VARIABLE AND

FIXED DIVIDER

SAA6579

BIPHASE

SYMBOL

DECODER

DIFFERENTIAL 2 RDDA

DECODER

16 RDCL

CLOCK

REGENERATION

AND SYNC

TEST LOGIC AND OUTPUT

SELECTOR SWITCH

9

MODE

10

TEST

15 T57

11

VSSD

MEH162

Via pin MODE two different crystal frequencies can be used.

MODE

LOW

HIGH

CRYSTAL CLOCK

4.332 MHz

8.664 MHz

Fig.1 Block diagram and application circuit.

1997 Feb 24

3

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