10.
Circuit Diagrams and PWB Layouts
10-3-6
Earphone pre amplifier
19450_513_130110.eps
130110
Earphone pre amplifier
B06
B06
2012-09-24
A
715G5740
Earphone pre amplifier
AV_AUOUTL3
AV_AUOUTR3
AV_AUOUTL3
HP_SD
APA2176A
U602
NC
1
3
PVDD
16
NC
4
CP+
1
PGND
2
CP-
3
CV
SS
5
V
SS
6
LOUT
7
VDD
8
ROUT
9
LIN
10
/RSD
11
RIN
12
GND
14
/L
S
D
15
C605
1.5nF 50V
R607
100 OHM 1/10W
C611
10UF 10V
C606
1UF16V
C610
2.2UF 16V
R605
0R05 OHM
C601
100NF 16V
C602
10UF 10V
R603
200OHM1/16W
FB602
300R
1
2
R604
100OHM1/16W
R602
0R05 OHM
C607
1UF16V
C609
1.5nF 50V
C604
1UF16V
R606
200OHM1/16W
C603
NC/1.5nF 50V
C608
NC/1.5nF 50V
HP_OUT_R
R608
100 OHM 1/10W
FB601
300R
1
2
+5V_Normal
+3.3V_Standby
AV_AUOUTL3
2
AV_AUOUTR3
2
HP_OUT_L
4
HP_OUT_R
4
HP_DET
2,4
HP_OUT_L
Headphone Amp
HP_OUT_L
AV_AUOUTR3
HP_OUT_R