CDB4220 데이터 시트보기 (PDF) - Cirrus Logic

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CDB4220

24-Bit Stereo Audio Codec with 3V Interface

Cirrus Logic 

3. TYPICAL CONNECTION DIAGRAM — CS4221

CS4220 CS4221

Ferrite Bead

2Ω

+5V

Supply

+ 1 µF

0.1 µF

0.1 µF + 1 µF

+2.7 - 5V

0.1 µF + 1 µF

150Ω

150Ω

150Ω

150Ω

Microcontroller

Rs = 500 Ω

* Required for

Master Mode only

21

VA

20 AINL+

2.2 nF

19 AINL-

6

VD VL 13

AOUTL+ 25

AOUTL- 26

AOUTR+ 24

AOUTR- 23

Analog Filter

Analog Filter

17 AINR+

2.2 nF

CS4221

16 AINR-

XTI 3

10 SCL/CCLK

11 SDA/CDIN

12 AD0/CS

27 RST

18 I2C/SPI

1

NC

14

NC

15

NC

28

NC

AGND

22

XTO 2 40 pF

SCLK 5

LRCK 4

SDIN 9

SDOUT 8

DGND

7

Rs

Rs

Rs

Rs

*

47 kΩ

40 pF

External

Clock Input

Eliminate the crystal

and capacitors when

using an external

clock input

Audio

DSP

Figure 5. CS4221 Recommended Connection Diagram

(Also see Recommended Layout Diagram)

DS284PP3

11

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