AA4002 Datasheet, PDF (20/22 Pages) BCD Semiconductor Manufacturing Limited – STEREO 2W AUDIO POWER AMPLIFIER

STEREO 2W AUDIO POWER AMPLIFIER
Typical Application
Data Sheet
AA4002
V_DD
R_PU
100kΩ
V_DD
DC Volume
Control
R_W
10kΩ
V_DD
C_V
0.1µF
R_I
20kΩ
R_F
20kΩ
To Control Pin on
Headphone Jack
R_S
100kΩ 21 HP Sense
3
Gain Select
5 Mute
4 Mode
Mode
Control
Left Dock
C_OUTL
0.1µF
13 Left Dock
+
Audio In
Left
R_FL
R_IL
20kΩ
C_IL
0.33µF
20kΩ
12 Left In
_
7
DC Vol
BEEP In
Audio In
Right
+
R_IR
20kΩ
R_BEEP
200kΩ
R_BEEP
200kΩ
+
C_IR
0.33µF
Beep
11 In Beep
Detect
10 Right In
R_FR
20kΩ
9 Right Dock
+
Right Dock C_OUTR
1µF
6, 16, 27 V_DD
+
Bias
+
_
C_S1
10µF
+
C_S
0.1µF
1, 8, 14, 20, 23 GND
C_S
0.1µF
22 Bypass
C_B
1µF
Power
Management
Click and Pop
Suppression
Circuitry
Volume
Control
31 Steps
19
Left Gain 1
10kΩ
Bias
10kΩ
18
Left Gain 2
10kΩ
_
+
20kΩ
Left Out- 17
20kΩ
_
+ Left Out+ 15
Right Out+
+
28
_
20kΩ
+
_
20kΩ
Right Out - 26
10kΩ
Shutdown
2
Right Gain 1
24
Right Gain 2
25
R_BS
20kΩ
C_BS
0.068µF
C_OUT
220µF
+
R_L
1.5kΩ
CONTROL PIN
PIN RING
To
HP Sense
Circuit
+
C_OUT
220µF
TIP _SLEEVE
HEADPHONE
JACK
R_L
1.5kΩ
R_BS
20kΩ
C_BS
0.068µF
R_I
20kΩ
R_F
20kΩ
Figure 28. Typical Application of AA4002
Sep. 2006 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
20