CS4226
Ferrite Bead
2.0
Ω
+5V
Supply
1
F
0.1
F
1
+
F
0.1 F
µ
µ
µ
µ
+
19
VA+
40
VD+
16
21
22
23
24
25
26
ANALOG
FILTER
To Optional
Input and
Output Buffers
CMOUT
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
1
F
µ
+
ANALOG
FILTER
14
13
11
12
10
9
10
10
10
10
10
10
10
µ
µ
µ
µ
µ
F
F
F
F
F
F
F
*
AIN1L
AIN1R
*
*
*
*
*
*
CS4226
ANALOG
FILTER
AIN2L/FREQ0
AIN2R/FREQ1
ANALOG
FILTER
AIN3L/AUTODATA
AIN3R/AUDIO
AINAUX
µ
ANALOG
FILTER
15
µ
R
R
R
S
S
S
27
2
DEM
HOLD/RUBIT
ANALOG
FILTER
42
RX1
†
100 pF
S
Digital
Audio
Source
3
4
6
5
R
SCL/CCLK
SDA/CDOUT
AD0/CS
1
DATAUX/RX4
Microcontroller
†
100 pF
R
S
44
AD1/CDIN
LRCKAUX/RX3
SCLKAUX/RX2
†
100 pF
34
33
32
36
35
R
D
SDIN1
SDIN2
R
S
43
R
R
R
R
D
D
S
†
100 pF
SDIN3
8
7
PDN
Mode
Setting
SDOUT1
SDOUT2
LRCK
2
I C/SPI
S
S
S
Audio
DSP
R
R
= 50
Ω
S
D
37
38
R
R
= 475
Ω
All unused digital inputs
should be tied to DGND.
SCLK
CLKOUT
OVL/ERR
31
30
All unused analog inputs
should be left floating.
* Optional if analog inputs
biased to within 1% of
CMOUT
AGND1, 2 DGND1, 2
18 20 41 39
FILT
17
XTO
29
XTI
**
R
X2 28
**
256,
384,
512xFs
† Only needed when inputs
are used for S/PDIF.
R
R
C
**
X1
FILT
1xFs
Loop Current
Normal High
15 nF 180 nF
C1 40 pF 40 pF
C2 10 pF 40 pF
C1**
C2**
C
C
R
C
FILT
RIP
FILT
FILT
RIP
43 kΩ
3.3 k
Ω
R
R
short
open
X1 300 k
X2
Ω
1.5 nF 18 nF
10 M
Ω
Figure 1. Recommended Connection Diagram
10
DS188F4
CIRRUS [ CIRRUS LOGIC ]
