TS4902 ST Microelectronics, Inc., TS4902 Datasheet - Page 13

• Manufacturer Part Number: TS4902
• Description: 0.7MW Mono Audio Amplifier at 3.3V Supply With Standby Active Low
• Manufacturer: ST Microelectronics, Inc.

Fig. 44 : Signal to Noise Ratio vs Power Supply
with Unweighted Filter (20Hz to 20kHz)
Fig. 46 : Signal to Noise Ratio vs Power Supply
with Weighted Filter type A
Fig. 48 : Current Consumption vs Power
Supply Voltage
100
110
100
90
80
70
60
50
90
80
70
60
7
6
5
4
3
2
1
0
2.5
2.5
0
Vstandby = Vcc
Tamb = 25 C
RL=16
RL=16
3.0
3.0
1
3.5
3.5
RL=8
RL=8
2
Vcc (V)
Vcc (V)
Vcc (V)
4.0
4.0
3
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
4.5
4.5
4
5.0
5.0
5
Fig. 45 : Signal to Noise Ratio Vs Power Supply
with Unweighted Filter (20Hz to 20kHz)
Fig. 47 : Signal to Noise Ratio vs Power Supply
with Weighted Filter Type A
Fig. 49 : Current Consumption vs Standby
Voltage @ Vcc = 5V
90
80
70
60
50
90
80
70
60
50
2.5
2.5
7
6
5
4
3
2
1
0
0.0
0.5
RL=16
RL=16
3.0
3.0
1.0
1.5
RL=4
RL=4
3.5
3.5
2.0
Vstandby (V)
Vcc (V)
Vcc (V)
2.5
3.0
4.0
4.0
3.5
Gv = 10
Cb = Cin = 1µF
THD+N < 0.7%
Tamb = 25°C
Gv = 10
Cb = Cin = 1µF
THD+N < 0.7%
Tamb = 25°C
Vcc = 5V
Tamb = 25 C
4.0
RL=8
RL=8
4.5
4.5
4.5
TS4902
5.0
5.0
5.0
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