TS4851 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TS4851
STMicroelectronics
TS4851 Datasheet PDF : 28 Pages
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Electrical Characteristics
TS4851
Figure 55: Power dissipation vs. output power
(speaker output)
Figure 58: Power derating curves
0.5
Vcc=3V
F=1kHz
0.4 THD+N<1%
RL=4Ω
0.3
0.2
0.1
0.0
0.0
RL=8Ω
RL=16Ω
0.1
0.2
0.3
0.4
0.5
Output Power (W)
100
Rin & Lin Inputs
Input Impedance is Nominal
Tamb=25°C
10
Cin=100nF
Cin=220nF
1
-34.5
Cin=1µF
Cin=470nF
-20
0
12
Gain Setting (dB)
Figure 56: Power dissipation vs. output power
(headphone output, one channel)
Figure 59: -3 dB lower cut off frequency vs. gain
setting (output modes 3, 4, 5, 6, 7)
0.4
Vcc=5V
F=1kHz
THD+N<1%
0.3
0.2
RL=16Ω
0.1
RL=32Ω
0.0
0.00
0.05
0.10
0.15
0.20
0.25
Output Power (W)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Heat sink surface = 125mm2
No Heat sink
25
50
75
100
125
150
Ambiant Temperature ( C)
Figure 57: Power dissipation vs. output power
(headphone output one channel)
120
Vcc=3V
F=1kHz
100 THD+N<1%
80
RL=16Ω
60
40
RL=32Ω
20
0
0
10 20 30 40 50 60 70
Output Power (mW)
Table 11. Output noise (all inputs grounded)
Outp
ut
Mode
1
2
3
4
5
6
Unweighted
Filter from 3V
to 5V
23µVrms
20µVrms
70µVrms
53µVrms
79µVrms
60µVrms
Weighted Filter
(A) from 3V to
5V
20µVrms
17µVrms
60µVrms
45µVrms
67µVrms
51µVrms
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