SGM4871 Datasheet, PDF (6/12 Pages) SG Micro Corp – Audio Power Amplifier with Shutdown Mode

SGM4871
2.4W Audio Power Amplifier
with Shutdown Mode
TYPICAL PERFORMANCE CHARACTERISTICS (SGM4871YPS8)
PSRR vs. Frequency
90
80
70
60
50
V₊ = +5V
C_B = 1.0μF
40
R_L = 8Ω
V_RIPPLE = 200mVrms
30
0.01
0.1
1
10
100
Frequency (kHz)
Output Power vs. Load Resistance
2
V₊ = +5V
f = 1kHz
1.5
BW < 80kHz
1
10% THD+N
0.5
1% THD+N
0
0
10
20
30
40
Load Resistance (Ω)
Clipping Voltage vs. Supply Voltage
1
0.8
0.6
8Ω Top Side
0.4
0.2
8Ω Bottom Side
0
2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
Supply Current vs. Supply Voltage
6
V_IN = 0V
5.5 _{No Load}
5
4.5
4
3.5
3
2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
Output Power vs. Supply Voltage
2.5
f = 1kHz
2 BW < 80kHz
R_L = 8Ω
1.5
1
10% THD+N
0.5
1% THD+N
0
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
SG Micro Corp
6
www.sg-micro.com