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1.2W AUDIO POWER AMP S1A2201X01
INTRODUCTION
The S1A2201X01 is a monolithic integrated audio amplifier.
It is designed for the audio frequency class B amplifier.
FEATURES
• Wide range of operating supply voltage:
VCC = 3V − 14V
• Medium output power
• PO = 1.2W at VCC = 9V, RL = 8Ω, THD = 10%
• Low quiescent circuit current (I
• Good ripple rejection
• Minimum number of external parts required
= 4mA: Typ)
CCQ
ORDERING INFORMATION
Device Package Operating Temperature
8−DIP−300
S1A2201X01-D0B0 8−DIP−300 −20°C − + 70°C
BLOCK DIAGRAM
RIPPLE BOOTSTRAP VCC
8 7 6 5
–
+
1 2 3 4
CB NF INPUT GND
OUTPUT
Figure 1.
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S1A2201X01 1.2W AUDIO POWER AMP
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Characteristic Symbol Value Unit
Supply Voltage V
Output Peak Current I
Power Dissipation P
Operating Temperature T
Storage Temperature T
CC
PK
D
OPR
STG
16 V
1.5 A
1.25 W
− 20 — + 70 °C
− 40 — + 150 °C
ELECTRICAL CHARACTERISTICS
( Ta = 25°C, VCC = 9V, f = 1kHz, RG = 600Ω, RF = 120Ω, RL = 8Ω, unless otherwise specified )
Characteristic Symbol Test Conditions Min. Typ. Max. Unit
Quiescent Circuit Current I
Output Power P
CCQ
O
VI = 0 − 4 12 mA
VCC = 9V, RL = 4Ω, THD = 10%
VCC = 9V, RL = 8Ω, THD = 10%
VCC = 6V, RL = 4Ω, THD = 10%
− 1.6 −
0.9 1.2 −
− 0.75 −
VCC = 6V, RL = 8Ω, THD =10% 0.4 0.5 −
VCC = 12V, RL = 8Ω, THD =10% − 2 −
W
Total Harmonic Distortion THD
Open Loop Voltage Gain G
Closed Loop Voltage Gain G
VO
VC
Input Resistance R
Output Noise Voltage V
NO
PO = 500mW − 0.3 1.0 %
RF = 0Ω − 75 − dB
RF = 120Ω 33 36 39 dB
I
RG = 10kΩ
BW (−3dB) = 50Hz − 20kHz
− − 5 − MΩ
− 0.3 1.0 mV
2