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参数资料
| 型号： | TS472IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, AUDIO PREAMPLIFIER, QCC24 |
| 封装： | 4 X 4 MM, LEAD FREE, QFN-24 |
| 文件页数： | 3/24页 |
| 文件大小： | 622K |
| 代理商： | TS472IQT |
TS472
Electrical characteristics
11/24
Figure 14.
Differential output PSRR vs.
frequency
Figure 15.
Differential output PSRR vs.
frequency
100
1k
10k
-100
-80
-60
-40
-20
0
V
RIPPLE
=200mV
PP
, Inputs grounded
V
CC
=3V, Minimum Gain, Cin=1
μF, T
AMB
=25
°C
Cb=1
μF
No Cb
Cb=100nF
PSRR
(dB)
Frequency (Hz)
50
20k
100
1k
10k
-100
-80
-60
-40
-20
0
V
RIPPLE
=200mV
PP
, Inputs grounded
V
CC
=3V, Gain=20dB, Cin=1
μF, T
AMB
=25
°C
Cb=1
μF
No Cb
Cb=100nF
PSRR
(dB)
Frequency (Hz)
50
20k
Figure 16.
Single-ended output PSRR vs.
frequency
Figure 17.
Equivalent input noise voltage
density
100
1000
10000
-80
-70
-60
-50
-40
-30
-20
-10
0
Vcc=5V
Vcc=2.2V
Vcc=3V
Vripple=200mVpp
Inputs grounded
Cb=1
μF
Cin=100nF
Tamb=25
°C
PSRR
(dB)
Frequency (Hz)
50
20k
10
100
1k
10k
100k
1
10
100
1000
Cin=100nF
R
EQ
=100
Ω
T
AMB
=25
°C
e
n
(nV
/√
Hz
)
Frequency (Hz)
Figure 18.
Δgain vs. power supply voltage
Figure 19.
Δgain vs. ambient temperature
345
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
Maximum Gain
Gain=20dB
F=1kHz
Vin=5mV
Tamb=25°C
Minimum Gain
Δ
Gain
(dB)
Power Supply Voltage (V)
2.2
5.5
-40
-20
0
20
406080
-1.00
-0.75
-0.50
-0.25
0.00
0.25
0.50
Maximum Gain
F=1kHz
V
IN
=5mV
Gain=20dB
Minimum Gain
Δ
Gain
(dB)
Ambient Temperature (°C)
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