CS4220 CS4221
2. TYPICAL CONNECTION DIAGRAM — CS4220
Ferrite Bead
+5V
Supply
+ 1 µF
0.1 µF
2
Ω
+2.7 - 5V
0.1 µF + 1 µF
0.1 µF + 1 µF
150
Ω
150
Ω
150
Ω
150
Ω
21
VA
20
AINL+
2.2 nF
19
AINL-
6
VD
VL
AOUTL+
AOUTL-
AOUTR+
AOUTR-
13
25
26
24
23
18
12
3
40 pF
Analog Filter
Analog Filter
Digital Audio
Source
External
Clock Input
17
AINR+
2.2 nF
16
AINR-
DEM1
DEM0
CS4220
XTI
XTO
2
Mode Selection
10
11
27
40 pF
DIF1
DIF0
RST
5
4
9
8
R
s
Eliminate the crystal
and capacitors when
using an external
clock input
1
14
R
s
= 500
Ω
* Required for
Master Mode only
15
28
NC
NC
NC
NC
AGND
22
SCLK
LRCK
SDIN
SDOUT
DGND
7
R
s
R
s
R
s
*
47 k
Ω
Audio
DSP
Figure 4. CS4220 Recommended Connection Diagram
(Also see
Recommended Layout Diagram)
10
DS284PP3
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