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CDB4221 데이터 시트보기 (PDF) - Cirrus Logic
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CDB4221
24-Bit Stereo Audio Codec with 3V Interface
Cirrus Logic
CDB4221 Datasheet PDF : 32 Pages
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3.
TYPICAL CONNECTION DIAGRAM — CS4221
CS4220 CS4221
Ferrite Bead
2
Ω
+5V
Supply
+
1
µF
0.1 µF
0.1 µF + 1 µF
+2.7 - 5V
0.1 µF + 1 µF
150
Ω
150
Ω
150
Ω
150
Ω
Microcontroller
R
s
= 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
R
s
R
s
R
s
R
s
*
47 k
Ω
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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