SAA7284ZP datasheet(4/40 Pages) PHILIPS

Part #	SAA7284ZP

Description	Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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4 / 40 page

1996 Oct 24

4

Philips Semiconductors

Preliminary speciﬁcation

Terrestrial digital sound decoder for

conventional intercarrier PLL-IF systems

SAA7284

BLOCK DIAGRAM

handbook, full pagewidth

QUADRATURE MIXERS, BASEBAND FILTERS

AND

AGC GAIN STAGE

MBH216

PORT2

ADSEL

DOBM

SDA

SCL

DATAOUT

EXTR

FMR

PCLK

OPR

DATAIN

OSC

XTAL

CLKLPF

OPL

FML

EXTL

PORM

PORA

REMVE

PKDET

REMO

CEYE

SEYE

COFF

SOFF

DQPSK

MIXREF

VCLK

VCONT

V

DDD

V

SSD

VSSX

VSSF2

VDDF2

VRCF

I REF

VROF

V

DDF1

VSSF1

VSSDAC

VROA

V

RCA

VSSA

V

DDA

MUTE

RESET

SAA7284GP

COSINE

SINE

CARRIER LOOP

PHASE DETECTOR

AND DATA SLICERS

AGC

CONTROLLER

BITRATE

CLOCK

RECOVERY

CARRIER LOOP

QUADRATURE

VCO

CRYSTAL

OSCILLATOR

I C

2

DAI

DIGITAL FILTER, GAIN,

J17 DE-EMPHASIS

NOISE SHAPER

(RIGHT CHANNEL)

BITSTREAM DAC

(RIGHT CHANNEL)

OUTPUT

SWITCHES

AND

BUFFER

(RIGHT CHANNEL)

NOISE SHAPER

(LEFT CHANNEL)

BITSTREAM DAC

(LEFT CHANNEL)

OUTPUT

SWITCHES

AND

BUFFER

(LEFT CHANNEL)

NICAM 728 DECODER

AND

DEVICE CONTROLLER

11

4

(1)

54

53

55

43

42

44

46

41

45

59

49

48

8

12

13

61

62

7

63

34

21

22

27

24

47

50

56

57

14

15

3

2

38

39

30

31

25

23

16

17

36

35

37

29

28

Fig.1 Block diagram (QFP64).

(1) Represents controller bus.

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SAA7284ZP Datasheet(PDF) 4 Page - NXP Semiconductors

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