TS4871 ST Microelectronics, Inc., TS4871 Datasheet - Page 17

• Manufacturer Part Number: TS4871
• Description: 1W Mono Audio Amplifier With Standby Active High
• Manufacturer: ST Microelectronics, Inc.

Fig. 69 : Signal to Noise Ratio vs Power Supply
with Unweighted Filter (20Hz to 20kHz)
Fig. 71 : Signal to Noise Ratio vs Power Supply
with Weighted Filter type A
Fig. 73 : Signal to Noise Ratio Vs Power Supply
with Unweighted Filter (20Hz to 20kHz)
100
110
100
90
80
70
60
50
90
80
70
60
50
90
80
70
60
2.5
2.5
2.5
RL=16
RL=16
RL=16
3.0
3.0
3.0
RL=4
3.5
3.5
3.5
RL=8
RL=8
Vcc (V)
Vcc (V)
Vcc (V)
4.0
4.0
4.0
Gv = 10
Cb = Cin = 1µF
THD+N < 0.7%
Tamb = 25°C
Gv = 2
Cb = Cin = 1µF
THD+N < 0.4%
Tamb = 25°C
Gv = 2
Cb = Cin = 1µF
THD+N < 0.4%
Tamb = 25°C
RL=4
RL=4
RL=8
4.5
4.5
4.5
5.0
5.0
5.0
Fig. 70 : Signal to Noise Ratio vs Power Supply
with Weighted Filter Type A
Fig. 72 : Current Consumption vs Power
Supply Voltage
Fig. 74 : Current Consumption vs Standby
Voltage @ Vcc = 5V
100
90
80
70
60
7
6
5
4
3
2
1
0
2.5
0
7
6
5
4
3
2
1
0
0.0
Vstandby = 0V
Tamb = 25°C
0.5
RL=16
3.0
1.0
1
1.5
RL=4
3.5
2.0
2
Vcc (V)
Vcc (V)
Vstandby (V)
2.5
3.0
4.0
3
3.5
Gv = 10
Cb = Cin = 1µF
THD+N < 0.7%
Tamb = 25°C
Vcc = 5V
Tamb = 25°C
4.0
RL=8
4.5
4
4.5
TS4871
5.0
5.0
17/28
5