SGM4890_15 Datasheet, PDF (6/12 Pages) SG Micro Corp – 1.1W Audio Power Amplifier

SGM4890
1.1W Audio Power Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs. Shutdown Voltage
5
V₊ = 3.6V
4
3
2
OFF
1
ON
0
-1
0
1
2
3
Shutdown Voltage (V)
Clipping (Dropout) Voltage vs. Supply Voltage
0.9
0.8
R_L = 4Ω Top
0.7
0.6
R_L = 4Ω Bottom
0.5
0.4
R_L = 8Ω Top
0.3
0.2
0.1
0
0
R_L = 8Ω Bottom
1
2
3
4
5
6
Supply Voltage (V)
Supply Current vs. Shutdown Voltage
5
V₊ = 5V
V₊ = 3.6V
4
3
2
V₊ = 3V
V₊ = 2.6V
1
0
-1
0
1
2
3
Shutdown Voltage (V)
Output Power vs. Supply Voltage
1.8
R_L = 8Ω
1.5 CIN = 0.39μF
f = 1kHz
THD+N = 10%
1.2 G = 2V/V
0.9
0.6
THD+N = 1%
0.3
0
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
0.3
0.25
0.2
0.15
0.1
0.05
0
0
Power Dissipation vs. Output Power
V₊ = 3V
R_L = 8Ω
f = 1kHz
THD ≤ 1.0%
0.1
0.2
0.3
0.4
0.5
Output Power (W)
Power Dissipation vs. Output Power
1
0.8
0.6
0.4
0.2
0
0
V₊ = 5V
R_L = 8Ω
f = 1kHz
THD ≤ 1.0%
0.2
0.4
0.6
0.8
1
Output Power (W)
SG Micro Corp
6
www.sg-micro.com