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參數(shù)資料
型號(hào): 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(yè)數(shù): 11/35頁(yè)
文件大小: 483K
代理商: TS4994IST
TS4994
Electrical characteristics
19/35
Figure 63.
THD+N vs. frequency
Figure 64.
THD+N vs. frequency
100
1000
10000
0.01
0.1
1
10
Vcc=2.6V, Po=225mW
Vcc=5V, Po=850mW
RL = 8
Ω
Av = 7.5
Cb = 1
μF
Bw < 125kHz
Tamb = 25
°C
20k
20
THD
+
N
(
%
)
Frequency (Hz)
100
1000
10000
0.01
0.1
1
10
Vcc=2.6V, Po=225mW
Vcc=5V, Po=850mW
RL = 8
Ω
Av = 7.5
Cb = 0
Bw < 125kHz
Tamb = 25
°C
20k
20
THD
+
N
(
%
)
Frequency (Hz)
Figure 65.
THD+N vs. frequency
Figure 66.
THD+N vs. frequency
100
1000
10000
1E-3
0.01
0.1
1
10
Vcc=2.6V, Po=155mW
Vcc=5V, Po=600mW
RL = 16
Ω
Av = 1
Cb = 1
μF
Bw < 125kHz
Tamb = 25
°C
20k
20
THD
+
N
(
%
)
Frequency (Hz)
100
1000
10000
1E-3
0.01
0.1
1
10
Vcc=2.6V, Po=155mW
Vcc=5V, Po=600mW
RL = 16
Ω
Av = 7.5
Cb = 1
μF
Bw < 125kHz
Tamb = 25
°C
20k
20
THD
+
N
(
%
)
Frequency (Hz)
Figure 67.
SNR vs. power supply voltage with
unweighted filter
Figure 68.
SNR vs. power supply voltage with
A-weighted filter
2.5
3.0
3.5
4.0
4.5
5.0
80
85
90
95
100
105
110
Av = 2.5
Cb = 1
μF
THD+N < 0.7%
Tamb = 25
°C
RL=16
Ω
RL=8
Ω
S
ig
n
a
lto
N
o
is
e
R
a
tio
(d
B
)
Power Supply Voltage (V)
2.5
3.0
3.5
4.0
4.5
5.0
80
85
90
95
100
105
110
Av = 2.5
Cb = 1
μF
THD+N < 0.7%
Tamb = 25
°C
RL=16
Ω
RL=8
Ω
S
ig
n
a
lto
N
o
is
e
R
a
tio
(d
B
)
Power Supply Voltage (V)
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