參數(shù)資料
型號： TS4998IQT
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC16
封裝： 4 X 4 MM, ROHS COMPLIANT, QFN-16
文件頁數(shù)： 9/33頁
文件大?。?/td> 488K
代理商： TS4998IQT
TS4998
Electrical characteristics
17/33
Figure 50.
Current consumption vs. standby
voltage
Figure 51.
Current consumption vs. standby
voltage
01
23
45
0
1
2
3
4
5
6
7
8
One channel active
C
u
rr
e
n
tC
ons
umption
(mA
)
Standby Voltage (V)
Vcc = 5V
No load
Tamb = 25
°C
Both channels active
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
1
2
3
4
5
6
7
One channel active
C
u
rr
e
n
tC
ons
umption
(mA
)
Standby Voltage (V)
Vcc = 3.3V
No load
Tamb = 25
°C
Both channels active
Figure 52.
Current consumption vs. standby
voltage
Figure 53.
Standby current vs. power supply
voltage
0.0
0.5
1.0
1.5
2.0
2.5
0
1
2
3
4
5
6
7
One channel active
Cur
rent
Consumption
(mA)
Standby Voltage (V)
Vcc = 2.7V
No load
Tamb = 25
°C
Both channels active
012
345
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
S
ta
ndby
C
u
rrent
(nA
)
Power Supply Voltage (V)
No load
Tamb = 25
°C
Figure 54.
Frequency response
Figure 55.
Frequency response
100
1000
10000
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Cin=680nF, Rin=12k
Ω
Cin=4.7
μF, Rin=12kΩ
Cin=4.7
μF, Rin=24kΩ
20k
Gain
(dB)
Frequency (Hz)
Cin=330nF, Rin=24k
Ω
Vcc = 5V
Po = 700mW
ZL = 8
Ω + 500pF
Tamb = 25
°C
20
100
1000
10000
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Cin=680nF, Rin=12k
Ω
Cin=4.7
μF, Rin=12kΩ
Cin=4.7
μF, Rin=24kΩ
20k
Gain
(dB)
Frequency (Hz)
Cin=330nF, Rin=24k
Ω
Vcc = 3.3V
Po = 300mW
ZL = 8
Ω + 500pF
Tamb = 25
°C
20
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