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TS4975 数据表(PDF) 20 Page - STMicroelectronics

部件名 TS4975
功能描述  Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus
PDF  36 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4975 数据表(HTML) 20 Page - STMicroelectronics

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Electrical Characteristics
TS4975
20/36
Figure 49. SNR vs. power supply voltage
Figure 50. SNR vs. power supply voltage
Figure 51. Frequency response
Figure 52. Current consumption vs. power
supply voltage
Figure 53. 3dB lower cut off frequency vs.
input capacitance
Figure 54. 3dB lower cut off frequency vs.
output capacitance
2.5
3.3
5
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
RL = 32
Ω
RL = 16
Ω
Out. mode 1 - 8
PHG, G = +18dB
Unweighted filter (20Hz to 20kHz)
THD+N < 0.5%
Tamb = 25
°C
Vcc (V)
2.5
3.3
5
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
RL = 32
Ω
RL = 16
Ω
Out. mode 1 - 8
PHG, G = +18dB
Weighted filter type A
THD+N < 0.5%
Tamb = 25
°C
Vcc (V)
100
1000
10000
0
2
4
6
8
10
12
14
16
18
20
20
Vcc = 5V, 3.3V, 2.5V
G = +2dB
Vcc = 5V, 3.3V, 2.5V
G = +18dB
Output mode 1 - 8
RL = 32, 16
Ω
Cin = 330nF
SE, PHG
BW < 125kHz
Tamb = 25
°C
Frequency (Hz)
012345
0
1
2
3
4
5
6
Reset state
PHG, Out. mode 5, 6, 7, 8
PHG, Out. Mode 1, 2, 3, 4
SE, Out. mode 5, 6, 7, 8
SE, Out. mode 1, 2, 3, 4
No loads
Tamb = 25
°C
Vcc (V)
1
10
100
Typical Input
Impedance
Maximum Input
Impedance
Minimum Input
Impedance
All gain setting
Tamb=25
°C
Input Capacitor Cin (
µF)
0.1
100
1000
1
10
100
RL=32
Ω
Output capacitor Cout (
µF)
All gain setting
Tamb = 25
°C
RL=16
Ω



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