CDB4227 데이터 시트보기 (PDF) - Cirrus Logic

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CDB4227

Six Channel, 20-Bit Codec

Cirrus Logic 

CS4227

+5V

Supply

Ferrite Bead

+ 1 µF

0.1 µF

2.0 Ω

+ 1 µF

0.1 µF

To Optional

Input and

Output Buffers

1 µF

16

+

19

VA+

CMOUT

40

VD+

10 µF * 14 AIN1L

10 µF * 13 AIN1R

10 µF * 11 AIN2L

10 µF * 12 AIN2R

10 µF * 10 AIN3L

10 µF * 9 AIN3R

10 µF * 15 AINAUX

CS4227

21

AOUT1

ANALOG

FILTER

22

AOUT2

ANALOG

FILTER

23

AOUT3

ANALOG

FILTER

24

AOUT4

ANALOG

FILTER

25

AOUT5

ANALOG

FILTER

Digital

Audio

Source RS

RS

27

DEM

2

HOLD

1

DATAUX

44

LRCKAUX

43

SCLKAUX

Mode

Setting

8

PDN

7

SPI/I2C

RS = 50 Ω

All unused digital inputs

should be tied to 0V.

Unused analog inputs

should be left unconnected.

AGND1, 2 DGND1, 2

18 20 41 39

NC

17

* Optional if analog inputs biased

to within 1% of CMOUT

26

AOUT6

ANALOG

FILTER

3

SCL/CCLK

4

SDA/CDOUT

6

AD0/CS

5

AD1/CDIN

Microcontroller

34

SDIN1

33

SDIN2

32

SDIN3

36

SDOUT1

35

SDOUT2

37

LRCK

RS

38

SCLK

RS

31

CLKOUT

30

OVL

XTO

29

XTI

28

Audio

DSP

C1**

External

Clock Input

C2**

Figure 5. Recommended Connection Diagram

(Also see recommended layout diagrams, Figure 14)

DS281PP2

11

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