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Número de pieza
componentes Descripción
APA4835 Ver la hoja de datos (PDF) - Anpec Electronics
Número de pieza
componentes Descripción
Fabricante
APA4835
Stereo 2.8W Audio Power Amplifier with DC Volume Control and Selectable Gain
Anpec Electronics
APA4835 Datasheet PDF : 22 Pages
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APA4835
Typical Application Circuit
V
DD
R_var
V
DD
1 µ
F
DC Vol Control
r*=R_var/50
V
DD
100K
Ω
HP Sense
Internal gain select
3
7
100K
Ω
To Control Pin on
21
Headphone Jack
Mute
5
Mode
4
13
Left Dock
20K
Ω
20K
Ω
200K
Ω
Beep In
Left In
12
+
0.33
µ
F
11
R ig h t
A u d io
Input
200K
Ω
20K
Ω
Right In
10
+
0.33
µ
F
20K
Ω
9
Right Dock
Mode
Control
Beep
Detect
B ia s
Volum e
Control
32 steps
V
DD
6,16,27
1,8,14,20,23
GND Bypass
22
0.1
µ
F 0.1
µ
F 0.1
µ
F
2.2µ
F
Power
M a nagem ent
Click and Pop
S up p re s s io n
Circuitry
2
20K
Ω
19
20K
Ω
18
10K
Ω
10K
Ω
20K
Ω
0.068
µ
F
10K
Ω
24
20K
Ω
20K
Ω
- Left Out
17
+
220
µ
F
1K
Ω
Control Pin
Pin Ring
15
+ Left Out
To HP sense
Circuit
28
+ Right O ut
S le e v e
Tip
20K
Ω
20K
Ω
26
10K
Ω
- Right O ut
+
220
µ
F
Headphone Jack
1K
Ω
20K
Ω
0.068
µ
F
25
S h u td o w n
20K
Ω
20K
Ω
* Add a resistor to avoid volume control gain error at power on status. For the R_var with 10K
Ω
variable resistor, the recommended
value of r is in range of 100~200
Ω
.
Copyright
ANPEC Electronics Corp.
6
Rev. A.
7 -
Mar
.,
2003
www.anpec.com.tw
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