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SGM4890 Datasheet, PDF (6/9 Pages) SG Micro Corp – 1.1 Watt Audio Power Amplifier
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TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs.Shutdown Voltage
5
V+ = 3.6V
4
3
2
OFF
ON
1
0
-1
0
1
2
3
Shutdown Voltage(V)
Supply Current vs.Shutdown Voltage
5
V+ = 5V
V+ = 3.6V
4
3
V+ = 3V
V+ = 2.6V
2
1
0
-1
0
1
2
3
Shutdown Voltage(V)
Clipping(Dropout) Voltage vs.Supply Voltage
0.9
0.8
RL = 4Ω Top
0.7
0.6
RL = 4Ω Bottom
0.5
0.4
RL = 8Ω Top
0.3
0.2
0.1
RL = 8Ω Bottom
0
0
1
2
3
4
5
6
Supply Voltage(V)
Power Dissipation vs.Output Power
1
0.8
0.6
0.4
0.2
0
0
V+ = 5V
RL = 8
f = 1kHz
THD 1.0%
0.2
0.4
0.6
0.8
1
Output Power (W)
0.3
0.25
0.2
0.15
0.1
0.05
0
0
Power Dissipation vs.Output Power
V+ = 3V
RL = 8
f = 1kHz
THD 1.0%
0.1
0.2
0.3
0.4
0.5
Output Power(W)
6
SGM4890
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