Cirrus Logic CS4228A - Manual (Page 12)

CS4228A
12
2. TYPICAL CONNECTION DIAGRAM
+5V
S upply
+ 1 µ F 0.1 µ F + 1 µ F 0.1 µ F
V A VD
A G N D D G N D M C LK
E xternal C lock Input
N ote : M C L K Logic H igh is V L
A ll unused logic inputs
should be tied to 0 V.
F L
FR
S L
S R
C E N TE R
S U B
FILT
150 Ω
A IN L-
A IN L+
AIN R -
AIN R +
C S 4228A
AN AL O G
FILTE R
F
ro
m
A
n
al
og I
n
p
u
t S
tage
M U TE C
+3.0V to + 5V
S upply
V L
+ 1 µ F 0.1 µ F
10 7 22
15
28
27
26
25
24
23
9 8 21
18
19
17
16
1 µ F
Ferrite B ead
AN AL O G
FILTE R
AN AL O G
FILTE R
AN AL O G
FILTE R
AN AL O G
FILTE R
AN AL O G
FILTE R
* R equired for 2-w ire
m ode only
V L
150 Ω
2.2 nf
2.2 nf
+5 V
S upply
Ferrite B ead Ferrite B ead
D igital Au dio
P eripheral
or
D S P
S D IN 1
S D IN 2
S D IN 3
S D O U T
LR C K
S C LK
50 Ω
50 Ω
33 K *
4
1
2
3
5
6
50 Ω
M icrocontroller S C L/C C LK
A D 0/C S
R S T
14
13
11
S D A /C D IN
12
2.2 K *
V L
22 µ F
22 µ F
+
+
+
100 µ F
100 µ F
+
+
0.1 µ F
20
0.1 µ F
50 Ω
50 Ω
50 Ω
V L
V L
µ F 0.1
Front Left
Front R ight
S urround Left
S urround R ight
C enter
S ubw oofer
N ote: A G N D and D G N D pin s should
both be tied to a com m on ground p lane.
Figure 6. Recommended Connection Diagram