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TS4974 Datasheet(PDF) 14 Page - STMicroelectronics

No. de pieza TS4974
Descripción Electrónicos  1W differential audio power amplifier with up/down digital volume control pins
PDF  25 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4974 Datasheet(HTML) 14 Page - STMicroelectronics

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Electrical characteristics
TS4974
14/25
Figure 32.
Standby voltage vs. supply current Figure 33.
Frequency response
0.0
0.5
1.0
1.5
2.0
2.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vcc=5V
Vcc=3.3V
No load
Tamb = 25
°C
Vstby (V)
Vcc=2.6V
100
1000
10000
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Cin=4.7
μF
Cin=330nF
Cin=330nF
Cin=4.7
μF
G=+12dB
Cin=4.7
μF
Cin=330nF
G=+6dB
20k
Frequency (Hz)
G=0dB
Vcc = 5V, 3.3V, 2.6V
ZL = 8
Ω + 500pF
Tamb = 25
°C
20
Figure 34.
Frequency response
Figure 35.
Power dissipation vs. output power
100
1000
10000
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Cin=4.7
μF
Cin=330nF
Cin=330nF
Cin=4.7
μF
G=+12dB
Cin=4.7
μF
Cin=330nF
G=+6dB
20k
Frequency (Hz)
G=0dB
Vcc = 5V, 3.3V, 2.6V
ZL = 16
Ω + 500pF
Tamb = 25
°C
20
0.0
0.2
0.4
0.6
0.8
1.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
RL=8
Ω
Vcc = 5V
F = 1kHz
THD+N < 1%
RL=32
Ω
RL=16
Ω
Output Power (W)
Figure 36.
Power dissipation vs. output power Figure 37.
Power dissipation vs. output power
0.0
0.1
0.2
0.3
0.4
0.0
0.1
0.2
0.3
RL=8
Ω
Vcc = 3.3V
F = 1kHz
THD+N < 1%
RL=32
Ω
RL=16
Ω
Output Power (W)
0.00
0.05
0.10
0.15
0.20
0.25
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
RL=32
Ω
Vcc = 2.6V
F = 1kHz
THD+N < 1%
RL=8
Ω
RL=16
Ω
Output Power (W)



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