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參數資料
型號: TS4990IST
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: LEAD FREE, MSOP-8
文件頁數: 6/32頁
文件大小: 714K
代理商: TS4990IST
Electrical characteristics
TS4990
14/32
Figure 38.
Current consumption vs. standby
voltage @ VCC = 5V
Figure 39.
Current consumption vs. standby
voltage @ VCC = 2.6V
012
345
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vcc = 5V
No load
Tamb=25
°C
Cur
re
nt
Consumpt
ion
(
m
A)
Standby Voltage (V)
0.0
0.5
1.0
1.5
2.0
2.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vcc = 2.6V
No load
Tamb=25
°C
Cur
re
nt
Consumpt
ion
(
m
A)
Standby Voltage (V)
Figure 40.
THD + N vs. output power
Figure 41.
Current consumption vs. standby
voltage @ VCC = 3.3V
1E-3
0.01
0.1
1
0.1
1
10
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Vcc=2.2V
RL = 4
Ω
F = 20Hz
Av = 2
Cb = 1
μF
BW < 125kHz
Tamb = 25
°C
THD
+
N
(
%
)
Output Power (W)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vcc = 3.3V
No load
Tamb=25
°C
Cur
re
nt
Consumpt
ion
(
m
A)
Standby Voltage (V)
Figure 42.
Current consumption vs. standby
voltage @ VCC = 2.2V
Figure 43.
THD + N vs. output power
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vcc = 2.2V
No load
Tamb=25
°C
Cur
re
nt
Consumpt
ion
(
m
A)
Standby Voltage (V)
1E-3
0.01
0.1
1
0.01
0.1
1
10
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Vcc=2.2V
RL = 8
Ω
F = 20Hz
Av = 2
Cb = 1
μF
BW < 125kHz
Tamb = 25
°C
THD
+
N
(
%
)
Output Power (W)
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