CS4220 Datasheet, PDF (11/32 Pages) Cirrus Logic – 24-Bit Stereo Audio Codec with 3V Interface

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
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 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