TS487 STMICROELECTRONICS [STMicroelectronics], TS487 Datasheet - Page 22

• Manufacturer Part Number: TS487
• Description: 100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY MODE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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