SGM4871 Datasheet, PDF (4/12 Pages) SG Micro Corp – Audio Power Amplifier with Shutdown Mode

SGM4871
2.4W Audio Power Amplifier
with Shutdown Mode
TYPICAL PERFORMANCE CHARACTERISTICS (SGM4871YS8)
THD+N vs. Frequency
1
V₊ = +5V
P_O = 1.0W
R_L = 8Ω
A_V = 2
No Filters
0.1
0.01
0.01
0.1
1
10
100
Frequency (kHz)
THD+N vs. Output Power
10
V₊ = +5V
A_V = 2
f = 1kHz
1 _{RL = 8Ω}
BW < 80kHz
0.1
0.01
0.01
0.1
1
10
Output Power (W)
Output Power vs. Supply Voltage
2
f = 1kHz
BW < 80kHz
1.5 R_L = 8Ω
1
10% THD+N
1% THD+N
0.5
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)
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)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
Power Dissipation vs. Output Power
V₊ = +5V, f = 1kHz, R_L = 8Ω
THD + N ≤ 1%, BW < 80kHz
0.5
1
1.5
Output Power (W)
SG Micro Corp
4
www.sg-micro.com