5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
AMP
原来设计的是肖特基二级管
5819
,
0805
100M/600R
现样板已经用
的
的磁珠替代
<Doc>
<RevCode>
<Title>
B
2
2
Monday, September 20, 2010
Title
Size
Document Number
Rev
Date:
Sheet
of
ROUT
ROUT
LOUT
STABY
STABY
LOUT
ST
B
VCC
OPVDD
VCC
VDD33
OPVDD
C74
102
C76
20P
R54
100K
J2
PHONEJACK STEREO SW
1
2
3
4
5
C72
470PF
C67
104
C77
22P
C65
470UF
R52
4.7K
C68
104
C78
104
C71
102
C69
102
LS1
SPEAKER
L16
100M
U9
BA2010
1
2
3
4
5
6
7
8
9
INP
VDD
INN
SD
_B
OUTP
GND
OUTN
GN
D
PVD
D
C66
22P
R49
20K
R53
1K
L14
100M
600R
R51
240K
C70
104
C73
104
L15
100M
C75
470PF
D3
600M100R
R47
20K
Q3
2N3904
L17
100M600R
R50
47K
R48
240K
ROUT
LOUT
STABY