TS4890 查看數據表（PDF） - STMicroelectronics
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TS4890 Datasheet PDF : 32 Pages
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TS4890
Fig. 91 : Signal to Noise Ratio vs Power Supply
with Weighted Filter type A
Fig. 92 : Signal to Noise Ratio vs Power Supply
with Weighted Filter Type A
110
100
RL=8Ω RL=4Ω
90
RL=16Ω
80
Gv = 2
70
Cb = Cin = 1µF
THD+N < 0.4%
Tamb = 25°C
60
2.2 2.5
3.0
3.5
4.0
4.5
5.0
Vcc (V)
100
90
RL=8Ω
80
RL=16Ω RL=4Ω
70
Gv = 10
Cb = Cin = 1µF
THD+N < 0.4%
Tamb = 25°C
60
2.2 2.5
3.0
3.5
4.0
4.5
5.0
Vcc (V)
Fig. 93 : Frequency Response Gain vs Cin, &
Cfeed
Fig. 94 : Current Consumption vs Power
Supply Voltage (no load)
10
5
0
-5
-10
-15
-20
-25
10
Cfeed = 330pF
Cfeed = 680pF
Cin = 470nF Cfeed = 2.2nF
Cin = 22nF
Cin = 82nF
Rin = Rfeed = 22kΩ
Tamb = 25°C
100
1000
Frequency (Hz)
10000
7
Vstandby = Vcc
6 Tamb = 25°C
5
4
3
2
1
0
0
1
2
3
4
5
Vcc (V)
Fig. 95 : Current Consumption vs Standby
Voltage @ Vcc = 5V
7
6
5
4
3
2
1
Vcc = 5V
Tamb = 25°C
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Vstandby (V)
Fig. 96 : Current Consumption vs Standby
Voltage @ Vcc = 3.3V
6
5
4
3
2
1
Vcc = 3.3V
Tamb = 25°C
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Vstandby (V)
21/32
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