STMicroelectronics 1.2 W fully differential audio power amplifier DEMOTS4995J DEMOTS4995J Ficha De Dados
Códigos do produto
DEMOTS4995J
Electrical characteristics
TS4995
16/26
Figure 50.
Current consumption vs. standby
voltage
voltage
Figure 51.
Frequency response
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Standby mode=2.6V
Current C
o
n
s
umpt
io
n (mA
)
Standby Voltage (V)
Vcc = 2.6V
No load
Tamb = 25
No load
Tamb = 25
°
C
Standby mode=0V
100
1000
10000
0
1
2
3
4
5
6
7
8
20k
Cin=4.7
μ
F
G
a
in (dB
)
Frequency (Hz)
Cin=330nF
Vcc = 5V
Gain = 6dB
ZL = 8
Gain = 6dB
ZL = 8
Ω
+ 500pF
Tamb = 25
°
C
20
Figure 52.
Frequency response
Figure 53.
Frequency response
100
1000
10000
0
1
2
3
4
5
6
7
8
20k
Cin=4.7
μ
F
G
a
in (dB
)
Frequency (Hz)
Cin=330nF
Vcc = 3.3V
Gain = 6dB
ZL = 8
Gain = 6dB
ZL = 8
Ω
+ 500pF
Tamb = 25
°
C
20
100
1000
10000
0
1
2
3
4
5
6
7
8
20k
Cin=4.7
μ
F
G
a
in (dB
)
Frequency (Hz)
Cin=330nF
Vcc = 2.6V
Gain = 6dB
ZL = 8
Gain = 6dB
ZL = 8
Ω
+ 500pF
Tamb = 25
°
C
20
Figure 54.
SNR vs. power supply voltage with
unweighted filter
unweighted filter
Figure 55.
SNR vs. power supply voltage with
A-weighted filter
A-weighted filter
2.5
3.0
3.5
4.0
4.5
5.0
5.5
100
102
104
106
108
110
112
114
116
118
120
RL=16
Ω
Signa
l to N
o
is
e
R
a
tio (dB
)
Power Supply Voltage (V)
F = 1kHz
G = 6dB
Cb = 1
G = 6dB
Cb = 1
μ
F
THD + N < 0.7%
Tamb = 25°C
Tamb = 25°C
RL=8
Ω
2.5
3.0
3.5
4.0
4.5
5.0
5.5
100
102
104
106
108
110
112
114
116
118
120
RL=16
Ω
Signa
l to N
o
is
e
R
a
tio (dB
)
Power Supply Voltage (V)
F = 1kHz
G = 6dB
Cb = 1
G = 6dB
Cb = 1
μ
F
THD + N < 0.7%
Tamb = 25°C
Tamb = 25°C
RL=8
Ω