SGM4890 Shengbang Microelectronics, SGM4890 Datasheet - Page 6

• Manufacturer Part Number: SGM4890
• Description: 1.1 Watt Audio Power Amplifier
• Manufacturer: Shengbang Microelectronics

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TYPICAL PERFORMANCE CHARACTERISTICS
0.25
0.15
0.05
0.3
0.2
0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-1
0
0
5
4
3
2
1
0
0
0
0
Clipping(Dropout) Voltage vs.Supply Voltage
V
+
= 3.6V
Supply Current vs.Shutdown Voltage
OFF
Power Dissipation vs.Output Power
R
L
1
0.1
= 8Ω Top
R
L
= 4Ω Bottom
Shutdown Voltage(V)
Supply Voltage(V)
Output Power(W)
1
2
ON
0.2
R
L
= 4Ω Top
3
0.3
R
2
4
V
R
f = 1kHz
THD ≤ 1.0%
L
+
L
= 8Ω Bottom
= 3V
= 8Ω
0.4
5
0.5
3
6
6
0.8
0.6
0.4
0.2
-1
1
0
5
4
3
2
1
0
0
0
Supply Current vs.Shutdown Voltage
Power Dissipation vs.Output Power
0.2
Shutdown Voltage(V)
1
Output Power (W)
0.4
V
V
+
+
= 5V
= 3V
0.6
2
V
R
f = 1kHz
THD ≤ 1.0%
+
L
V
V
= 5V
= 8Ω
+
+
0.8
= 2.6V
= 3.6V
SGM4890
3
1