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參數資料
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: 7/35頁
文件大小: 483K
代理商: TS4994IST
TS4994
Electrical characteristics
15/35
Figure 39.
CMRR vs. frequency
Figure 40.
CMRR vs. common mode input
voltage
100
1000
10000
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=1
μF
Cb=0.47
μF
Cb=0.1
μF
Cb=0
20k
20
Vcc = 2.6V
Vic = 200mVpp
Av = 2.5, Cin = 470
μF
RL
≥ 8Ω
Tamb = 25
°C
CMRR
(
d
B)
Frequency (Hz)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-100
-80
-60
-40
-20
0
Vcc=3.3V
Vcc=2.5V
Vcc=5V
Vic = 200mVpp
F = 217Hz
Av = 1, Cb = 1
μF
RL
≥ 8Ω
Tamb = 25
°C
CMRR(
dB)
Common Mode Input Voltage (V)
Figure 41.
CMRR vs. common mode input
voltage
Figure 42.
THD+N vs. output power
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-100
-80
-60
-40
-20
0
Vcc=3.3V
Vcc=2.5V
Vcc=5V
Vic = 200mVpp
F = 217Hz
Av = 1, Cb = 0
RL
≥ 8Ω
Tamb = 25
°C
CMRR(
dB)
Common Mode Input Voltage (V)
1E-3
0.01
0.1
1
1E-3
0.01
0.1
1
10
Vcc=5V
Vcc=3.3V
Vcc=2.6V
RL = 8
Ω
F = 20Hz
Av = 1
Cb = 1
μF
BW < 125kHz
Tamb = 25
°C
THD
+
N
(
%
)
Output Power (W)
Figure 43.
THD+N vs. output power
Figure 44.
THD+N vs. output power
1E-3
0.01
0.1
1
1E-3
0.01
0.1
1
10
Vcc=5V
Vcc=3.3V
Vcc=2.6V
RL = 8
Ω
F = 20Hz
Av = 2.5
Cb = 1
μF
BW < 125kHz
Tamb = 25
°C
THD
+
N
(
%
)
Output Power (W)
1E-3
0.01
0.1
1
0.01
0.1
1
10
Vcc=5V
Vcc=3.3V
Vcc=2.6V
RL = 8
Ω
F = 20Hz
Av = 7.5
Cb = 1
μF
BW < 125kHz
Tamb = 25
°C
THD
+
N
(
%
)
Output Power (W)
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