TS489 STMicroelectronics, TS489 Datasheet - Page 11

• Manufacturer Part Number: TS489
• Description: Pop-free 120mW stereo headphone amplifier
• Manufacturer: STMicroelectronics

TS488-TS489
Figure 14. Signal to noise ratio vs. power
Figure 16. Signal to noise ratio vs. power
Figure 18. Signal to noise ratio vs. power
110
108
106
104
102
100
106
104
102
100
100
98
98
96
94
98
96
94
92
90
88
2
2
2
A-weighted Filter
Av=-1, T
Cb=1
THD+N<0.4%
A-weighted Filter
Av=-2, T
Cb=1
THD+N<0.4%
A-weighted Filter
Av=-4, T
Cb=1
THD+N<0.4%
μ
μ
μ
supply voltage
supply voltage
supply voltage
F
F
F
AMB
AMB
AMB
=25°C
=25°C
=25°C
3
3
3
Power Supply Voltage (V)
Power Supply Voltage (V)
Power Supply Voltage (V)
RL=32
4
RL=32
4
4
RL=32
Ω
Ω
Ω
RL=16
5
5
5
RL=16
RL=16
Ω
Ω
Ω
6
6
6
Figure 15. Signal to noise ratio vs. power
Figure 17. Signal to noise ratio vs. power
Figure 19. Signal to noise ratio vs. power
106
104
102
100
102
100
98
96
94
92
90
88
86
98
96
94
98
96
94
92
90
2
2
2
Unweighted Filter
(20Hz-20kHz)
Av=-4, T
Cb=1
THD+N<0.4%
Unweighted Filter
(20Hz-20kHz)
Av=-1, T
Cb=1
THD+N<0.4%
Unweighted Filter
(20Hz-20kHz)
Av=-2, T
Cb=1
THD+N<0.4%
μ
μ
supply voltage
supply voltage
μ
supply voltage
F
F
F
AMB
AMB
AMB
=25°C
3
=25°C
=25°C
3
3
Power Supply Voltage (V)
Power Supply Voltage (V)
Power Supply Voltage (V)
Electrical characteristics
RL=32
RL=32
RL=32
4
4
4
Ω
Ω
Ω
RL=16
5
RL=16
5
5
RL=16
Ω
Ω
Ω
11/32
6
6
6