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參數(shù)資料
| 型號： | TS4994IST |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | LEAD FREE, MINI, SO-8 |
| 文件頁數(shù)： | 17/35頁 |
| 文件大小： | 483K |
| 代理商： | TS4994IST |
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Application information
TS4994
24/35
The three following graphs show PSRR versus frequency and versus bypass capacitor Cb in
worst-case conditions (
ΔR = 0.1%).
Figure 70.
PSRR vs. frequency (worst case
conditions)
Figure 71.
PSRR vs. frequency (worst case
conditions)
Figure 72.
PSRR vs. frequency (worst case
conditions)
100
1000
10000
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=0.1
μF
Cb=1
μF
Cb=0
20k
20
Cb=0.47
μF
Vcc = 5V, Vripple = 200mVpp
Av = 1, Cin = 4.7
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C, Inputs = Grounded
PSRR
(
d
B)
Frequency (Hz)
100
1000
10000
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=0.1
μF
Cb=1
μF
Cb=0
20k
20
Cb=0.47
μF
Vcc = 3.3V, Vripple = 200mVpp
Av = 1, Cin = 4.7
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C, Inputs = Grounded
PSRR
(
d
B)
Frequency (Hz)
100
1000
10000
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=0.1
μF
Cb=1
μF
Cb=0
20k
20
Cb=0.47
μF
Vcc = 2.5V, Vripple = 200mVpp
Av = 1, Cin = 4.7
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C, Inputs = Grounded
PSRR
(
d
B)
Frequency (Hz)
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