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