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TS4851 データシート(PDF) 19 Page - STMicroelectronics

部品番号 TS4851
部品情報  MONO 1 W SPEAKER AND STEREO 160 mW HEADSET BTL DRIVERS WITH DIGITAL VOLUME CONTROL
PDF  28 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4851 データシート(HTML) 19 Page - STMicroelectronics

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Electrical Characteristics
TS4851
19/28
Figure 55: Power dissipation vs. output power
(speaker output)
Figure 56: Power dissipation vs. output power
(headphone output, one channel)
Figure 57: Power dissipation vs. output power
(headphone output one channel)
Figure 58: Power derating curves
Figure 59: -3 dB lower cut off frequency vs. gain
setting (output modes 3, 4, 5, 6, 7)
Table 11. Output noise (all inputs grounded)
0.0
0.1
0.2
0.3
0.4
0.5
0.0
0.1
0.2
0.3
0.4
0.5
RL=4
Ω
RL=8
Ω
Vcc=3V
F=1kHz
THD+N<1%
RL=16
Ω
Output Power (W)
0.00
0.05
0.10
0.15
0.20
0.25
0.0
0.1
0.2
0.3
0.4
RL=16
Ω
RL=32
Ω
Vcc=5V
F=1kHz
THD+N<1%
Output Power (W)
0
1020
3040
5060
70
0
20
40
60
80
100
120
RL=32
Ω
Vcc=3V
F=1kHz
THD+N<1%
RL=16
Ω
Output Power (mW)
Outp
ut
Mode
Unweighted
Filter from 3V
to 5V
Weighted Filter
(A) from 3V to
5V
123
µVrms
20
µVrms
220
µVrms
17
µVrms
370
µVrms
60
µVrms
453
µVrms
45
µVrms
579
µVrms
67
µVrms
660
µVrms
51
µVrms
-20
0
1
10
100
Cin=1
µF
Cin=470nF
Cin=220nF
Cin=100nF
Rin & Lin Inputs
Input Impedance is Nominal
Tamb=25
°C
12
-34.5
Gain Setting (dB)
0
25
50
75
100
125
150
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
No Heat sink
Heat sink surface = 125mm
2
Ambiant Temperature ( C)



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