TS486 Datasheet, PDF (25/31 Pages) STMicroelectronics – 100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY MODE

Fig. 93: Crosstalk vs Frequency
80
ChB to ChA
60
40
20
0
20
ChA to ChB
100
1000
Frequency (Hz)
RL=16Ω
Vcc=2V
Pout=7.5mW
Av=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
TS486-TS487
Fig. 94: 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=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
Fig. 95: 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=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C
10000 20k
Fig. 96: Signal to Noise Ratio vs Power Supply
Voltage with Unweighted Filter (20Hz to 20kHz)
100
Av = -4
98 _{Cb = 1µF}
96 THD+N < 0.4%
94 ^{Tamb = 25°C}
RL=600Ω
92
90
88
86
RL=32Ω
84
RL=16Ω
82
80
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Power Supply Voltage (V)
Fig. 97: Signal to Noise Ratio vs Power Supply
Voltage with Weighted Filter Type A
Fig. 98: PSRR vs Power Supply Voltage
100
Av = -4
98 _{Cb = 1µF}
96 THD+N < 0.4%
94 ^{Tamb = 25°C}
RL=600Ω
92
90
88
86
RL=32Ω
84
RL=16Ω
82
80
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Power Supply Voltage (V)
0
Vripple = 200mVpp
-10
Av = -4
Input = grounded
Cb = 1µF
-20
RL >= 16Ω
Tamb = 25°C
-30
Vcc = 2V
-40
-50
Vcc = 5V, 3.3V & 2.5V
-60
100
1000
10000
Frequency (Hz)
100000
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