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5W Class-D 2.1 Audio circuits applications
D D
LOW PASS FILTER
L IN R13 12K C17 1uF VCC C18 0.1uF C27 0.1uF R21 2K2 R11 200K R17 12K C15 100uF LFP R15 R29 12K R30 12K R27 12K C16 1uF 50K R18 12K C19 0.1uF 100K C30 1 2 3 4 R16 8K2 U3 OUT1 -IN1 +IN1 GND HXJ1303 VCC OUT2 -IN2 +IN2 8 7 6 5 C26 0.1uF VCC LPF VR2 50K C? R22 NC C32 NC
BASS POWER AMP
C21 1uF
R23 2K2
C25 10uF 3 2 4
C24 10uF 1
LC Low pass filter L1 33uH/NC C34 220pF/NC SPB U4 CCT6805 4R5W C35 220pF/NC
VCC C33 100uF/10V
J1 L G R
VDD2
VDD1 7 GND
SHDN
R11 200K
5
6
8
-OUT
+IN
OUT+
-IN
R28 12K
VR1
100uF
C23 1uF
R25 2K2
L2 33uH/NC
R12 12K R IN
C29 0.01uF
VCC R24 10K C37 0.1uF C C22 3300pF
C
R20 100K
POWER IN L CHANNEL POWER AMP R CHANNEL POWER AMP
5V C28 470uF/10V B L IN 2.2uF/NC NC R7 C36 102/NC 4 VCC C5 100uF C12 C7 0.033uF C29 0.1uF B R6 12K C8 10uF 3 2 C10 10uF 1 C6 L3 33uH/NC C38 220pF SPL R IN R3 NC 2.2uF/NC R2 NC C39 NC 0.033uF C3 100uF/10V 4 VCC 10uF 3 2 C4 R1 12K C2 C1 10uF 1 VCC
R8 NC
L5 33uH/NC U2 CCT6805 C40 220pF/NC SPR
VDD2
VDD1
OUT+
-IN
U1
VDD2
VDD1
-IN
OUT+
SHDN
-OUT
GND
SHDN
+IN
+IN
4R3W C39 220pF
-OUT
GND
CCT6805
GND
4R3W C41 R20 100R L6 33uH/NC 220pF/NC DGND AGND
5
6
7
8
C20 0.033uF
R9 12K
5
6
7
C8 0.033uF VCC
R4 12K
33uH/NC R10 10K R5 10K C45 104
VCC C14 0.1uF
A
8
L4
A
Constant Crystal Taiwan
1 2 3
www.constantcrystal.com.tw
4 5
5W Class-D CCT6805
C
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2-Dec-2010 C:\Documents and Settings\Administrator\ \BACKUP~1.DDB : 6
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