CS4927 데이터 시트보기 (PDF) - Cirrus Logic

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CS4927

Multi-Channel Digital Audio Decoders

Cirrus Logic 

CS4923/4/5/6/7/8/9

8. PIN DESCRIPTIONS

VD1

DGND1

XMT958

WR,DS,EMWR,GPIO10

RD,R/W,EMOE,GPIO11

A1, SCDIN

A0, SCCLK

DATA7,EMAD7,GPIO7

DATA6,EMAD6,GPIO6

DATA5,EMAD5,GPIO5

DATA4,EMAD4,GPIO4

VD2

DGND2

DATA3,EMAD3,GPIO3

DATA2,EMAD2,GPIO2

DATA1,EMAD1,GPIO1

DATA0,EMAD0,GPIO0

CS

SCDIO, SCDOUT,PSEL,GPIO9

ABOOT, INTREQ

EXTMEM, GPIO8

SDATAN1

6 5 4 3 2 1 44 43 42 41 40

7

39

8

38

9

37

10

36

11

35

12

CS4923-CL

44-pin PLCC

34

13

33

14

Top View

32

15

31

16

30

17

29

18 19 20 21 22 23 24 25 26 27 28

MCLK

SCLK

LRCLK

AUDATA0

AUDATA1

AUDATA2

DC

DD

RESET

AGND

VA

FILT1

FILT2

CLKSEL

CLKIN

CMPREQ, LRCLKN2

CMPCLK, SCLKN2

CMPDAT, SDATAN2

LRCLKN1

SCLKN1, STCCLK2

DGND3

VD3

VA—Analog Positive Supply: Pin 34

Analog positive supply for clock generator. Nominally +3.3 V.

AGND—Analog Supply Ground: Pin 35

Analog ground for clock generator PLL.

VD1, VD2, VD3—Digital Positive Supply: Pins 1, 12, 23

Digital positive supplies. Nominally +3.3 V.

DGND1, DGND2, DGND3—Digital Supply Ground: Pins 2, 13, 24

Digital ground.

FILT1—Phase-Locked Loop Filter: Pin 33

Connects to an external filter for the on-chip phase-locked loop. This pin does not meet Cirrus

Logic’s ESD tolerance of 2000 V using the human body model. This pin will tolerate ESD of

1000 V using the human body model.

DS262F2

49

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