TS4990 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TS4990' PDF : 33 Pages View PDF
TS4990
Electrical characteristics
Figure 56. Signal to noise ratio vs. power
supply with a weighted filter
110
RL=16Ω
105
100
RL=8Ω
95
RL=4Ω
90
Av = 2
85 Cb = 1μF
THD+N < 0.7%
Tamb = 25°C
80
2.5
3.0
3.5
4.0
4.5
5.0
Power Supply Voltage (V)
Figure 57. Output noise voltage
device ON
45
Vcc=2.2V to 5.5V
40 Cb=1μF
RL=8Ω
35 Tamb=25°C
30 Unweighted Filter
25
20
A Weighted Filter
15
10
2
4
6
8
10
Closed Loop Gain
Figure 58. Signal to noise ratio vs. power
supply with a weighted filter
100
RL=16Ω
95
90
RL=8Ω
85
RL=4Ω
80
Av = 10
75 Cb = 1μF
THD+N < 0.7%
Tamb = 25°C
70
2.5
3.0
3.5
4.0
4.5
5.0
Power Supply Voltage (V)
Figure 59. Output noise voltage device in
Standby
2.0
1.8
1.6
1.4
Unweighted Filter
1.2
1.0
0.8
A Weighted Filter
0.6
Vcc=2.2V to 5.5V
0.4 Cb=1μF
0.2 RL=8Ω
Tamb=25°C
0.0
2
4
6
8
10
Closed Loop Gain
17/32
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