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LOW VOLTAGE AUDIO POWER AMP S1A0386A01
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INTRODUCTION
The S1A0386A01 is a power amplifier designed for use in low
voltage consumer applications. The gain is internally set to 20
to keep the external part count low, but the addition of an external resistor and Capacitor between Pin 1 and 8 will increase the
gain to any value up to 200.
FEATURES
• Battery operation
• Minimum external parts
• Wide supply voltage range:
4V − 12V (S1A0386A01-D0B0)
4V − 9V (S1A0386A01-S0B0)
• Low quiescent current drain (4mA)
• Voltage gains: 20 − 200dB
• Ground referenced Input
• Self-centering output quiescent voltage
• Low distortion
ORDERING INFORMATION
Device Package Operating Temperature
S1A0386A01-D0B0 8−DIP−300
−20°C − + 70°C
S1A0386A01-S0B0 8−SOP−225
8−SOP−225
8−DIP−300
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S1A0386A01 LOW VOLTAGE AUDIO POWER AMP
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BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Characteristic Symbol Value Unit
Supply Voltage V
CC
15 V
Power Dissipation S1A0386A01-D0B0 P
D
660 mW
S1A0386A01-S0B0 300
Input Voltage
Operating Temperature
Storage Temperature
V
I
T
OPR
T
STG
± 0.4
-20 — +70
-40 — + 125
V
°C
°C
1
2
4
8
7
6
5
GAIN
BY PASS
Vcc
Vo
GAIN
- INPUT
+ INPUT
GND
3
TOP VIEW
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LOW VOLTAGE AUDIO POWER AMP S1A0386A01
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ELECTRICAL CHARACTERISTICS
(Ta = 25°C, VCC = 6V, RL = 8Ω, f = 1kHz, unless otherwise specified)
APPLICATION CIRCUIT
Characteristic Symbol Test Conditions Min. Typ. Max. Unit
Quiescent Circuit Current I
CCQ
VI = 0 − 4 8 mA
Output Power
P
O
VCC = 6 V, THD = 10%
VCC = 9 V, THD = 10%
250
500
325
200
−
mW
mW
Voltage Gain
G
V
Pins 1 and 8 Open
10F from Pin 1 to 8
−
26
46
− dB
Bandwidth
BW Pins 1 and 8 Open
10µF from Pin 1 to 8
−
300
60
− kHz
Total Harmonic Distortion
(D-Type)
THD
PO = 125 mW, Pins 1 and 8
Open
− 0.2 − %
Input Resistance R
I
– − 50 − kΩ
Input Bias Current I
BIAS
Pins 1 and 8 Open − 250 − nA
Amplifier with Gain = 50 (34 dB)
+
+
+
BYPASS
0.05µ
10
R
L
250µ
5
7
3
4
8
2
6
1
10K
Vi
Vcc
1.2K
10µF
+
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S1A0386A01 LOW VOLTAGE AUDIO POWER AMP
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NOTES
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