TS486 Datasheet, PDF (22/31 Pages) STMicroelectronics – 100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY MODE

TS486-TS487
Fig. 75: PSRR vs Power Supply Voltage
0
Vripple = 200mVpp
-10
Av = -2
Input = grounded
-20
Cb = 1µF
RL >= 16Ω
-30
Tamb = 25°C
Vcc = 2V
-40
-50
-60
Vcc = 5V, 3.3V & 2.5V
-70
100
1000
10000
Frequency (Hz)
100000
Fig. 77: PSRR vs Input Capacitor
0
Vripple = 200mVpp
-10
Av = -2, Vcc = 5V
Input = grounded
-20
Cin = 1µF, 220nF
Cb = 1µF, Rin = 20kΩ
RL >= 16Ω
-30
Tamb = 25°C
-40
-50
-60
Cin = 100nF
-70
100
1000
10000
Frequency (Hz)
100000
Fig. 79: PSRR vs Output Capacitor
0
-10
-20
Cout = 470µF
-30
Vripple = 200mVpp
Av = -2, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 32Ω
RL >= 16Ω
Tamb = 25°C
-40
-50
-60
Cout = 100µF
-70
100
1000
10000
Frequency (Hz)
100000
Fig. 76: PSRR vs Bypass Capacitor
0
Vripple = 200mVpp
-10
Av = -2
Input = grounded
-20
Vcc = 5V
RL >= 16Ω
-30
Tamb = 25°C
-40
Cb = 1µF
-50
-60
Cb = 4.7µF
-70
100
Cb = 2.2µF
1000
10000
Frequency (Hz)
100000
Fig. 78: PSRR vs Output Capacitor
0
-10
-20
Cout = 470µF
-30
Vripple = 200mVpp
Av = -2, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 16Ω
RL >= 16Ω
Tamb = 25°C
-40
-50
-60
Cout = 220µF
-70
100
1000
10000
Frequency (Hz)
100000
Fig. 80: THD + N vs Output Power
10
RL = 16Ω
F = 20Hz
Av = -4
Cb = 1µF
1 _{BW < 22kHz}
Tamb = 25°C
Vcc=2V
Vcc=2.5V
0.1
0.01
1
Vcc=3.3V
Vcc=5V
10
100
Output Power (mW)
22/31