TS486 Datasheet, PDF (21/31 Pages) STMicroelectronics – 100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY MODE

Fig. 69: Crosstalk vs Frequency
TS486-TS487
Fig. 70: Crosstalk vs Frequency
ChB to ChA
80
60
40
20
0
20
ChA to ChB
100
1000
Frequency (Hz)
RL=16Ω
Vcc=5V
Pout=85mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
ChB to ChA
80
60
40
20
0
20
ChA to ChB
100
1000
Frequency (Hz)
RL=16Ω
Vcc=2V
Pout=7.5mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
Fig. 71: Crosstalk vs Frequency
80
60
40
20
0
20
ChA to ChB
ChB to ChA
100
1000
Frequency (Hz)
RL=32Ω
Vcc=5V
Pout=55mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
Fig. 72: Crosstalk vs Frequency
80
60
ChA to ChB
ChB to ChA
40
20
0
20
100
1000
Frequency (Hz)
RL=32Ω
Vcc=2V
Pout=6mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
Fig. 73: Signal to Noise Ratio vs Power Supply
Voltage with Unweighted Filter (20Hz to 20kHz)
Fig. 74: Signal to Noise Ratio vs Power Supply
Voltage with Weighted Filter Type A
100
Av = -2
98 _{Cb = 1µF}
96
THD+N < 0.4%
Tamb = 25°C
94
RL=600Ω
92
RL=32Ω
90
88
RL=16Ω
86
84
82
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Power Supply Voltage (V)
104
102
Av = -2
Cb = 1µF
100 THD+N < 0.4%
98 ^{Tamb = 25°C}
RL=600Ω
96
94
92
RL=32Ω
90
88
RL=16Ω
86
84
82
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Power Supply Voltage (V)
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