APA2069
Typical Application Circuit
VDD
100
µF
0.1
µF
V DD
GND
LOUT+
L-CH
Input
1
µF
220
µ
F
LIN-
Volume
Control
4
Ω
LOUT-
1kΩ
SE/BTL
Signal
Control
Pin Ring
R-Ch
Input
1
µF
RIN-
BYPASS
BYPASS
ROUT+
2.2
µF
220
µ
F
4
Ω
Sleeve
Tip
Headphone
Jack
1k
Ω
V DD
VDD
50kΩ
VOLUME
100k
Ω
100k
Ω
SE/BTL
SE/BTL
ROUT-
Shutdow n
Signal
SHUTDOWN
Shutdown
ckt
A2069_AppCkt
Volume Control Table_BTL Mode
Supply Voltage Vdd=5V
Gain(dB)
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
High(V)
0.12
0.23
0.34
0.46
0.57
0.69
0.80
0.91
1.03
1.14
1.25
1.37
1.48
1.59
1.71
Low(V)
0.00
0.17
0.28
0.39
0.51
0.62
0.73
0.84
0.96
1.07
1.18
1.29
1.41
1.52
1.63
Hysteresis(mV)
52
51
50
49
47
46
45
44
43
41
40
39
38
37
Recommended Voltage(V)
0
0.20
0.31
0.43
0.54
0.65
0.77
0.88
0.99
1.10
1.22
1.33
1.44
1.56
1.67
Copyright
©
ANPEC Electronics Corp.
Rev. A.1 - Aug., 2005
6
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
