TS488 Datasheet, PDF (17/32 Pages) STMicroelectronics – Pop-free 120mW stereo headphone amplifier

TS488-TS489
Electrical characteristics
Figure 50. Total harmonic distortion plus
noise vs. frequency
1
R =16Ω, A =-4
L
V
BW=20Hz-120kHz
T =25°C
AMB
0.1
Vcc=2.5V, Po=20mW
Vcc=3.3V, Po=40mW
0.01
Figure 51. Total harmonic distortion plus
noise vs. frequency
1
R =32Ω, A =-4
L
V
BW=20Hz-120kHz
T =25°C
AMB
0.1
Vcc=2.5V, Po=12mW
Vcc=3.3V, Po=25mW
0.01
1E-3
20
Vcc=5V, Po=100mW
100
1k
Frequency (Hz)
10k 20k
1E-3
20
Vcc=5V, Po=60mW
100
1k
Frequency (Hz)
10k 20k
Figure 52. Total harmonic distortion plus
noise vs. frequency
1
R =600Ω, A =-4
L
V
BW=20Hz-120kHz
T =25°C
AMB
0.1
Vcc=2.5V, Vo=0.7V
RMS
Vcc=3.3V, Vo=1V
RMS
0.01
Figure 53. Output power vs. load resistance
75
Vcc=2.5V, F=1kHz
THD+N=10%
T =25°C
AMB
BW=20Hz-120kHz
50
THD+N=1%
25
1E-3
20
Vcc=5V, Po=1.6V
RMS
100
1k
Frequency (Hz)
10k 20k
0
8
16
24
32
40
48
56
64
Load Resistance (Ω)
Figure 54. Output power vs. load resistance
125
Vcc=3.3V, F=1kHz
T =25°C
AMB
100
BW=20Hz-120kHz
THD+N=10%
75
THD+N=1%
50
Figure 55. Output power vs. load resistance
250
Vcc=5V, F=1kHz
T =25°C
AMB
200
THD+N=10%
BW=20Hz-120kHz
150
THD+N=1%
100
25
50
0
8
16
24
32
40
48
56
64
Load Resistance (Ω)
0
8
16
24
32
40
48
56
64
Load Resistance (Ω)
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