TS4994 ST Microelectronics, Inc., TS4994 Datasheet - Page 12

• Manufacturer Part Number: TS4994
• Description: 1.2W Differential Input Audio Power Amplifier With Selectable Standby
• Manufacturer: ST Microelectronics, Inc.

TS4994
Figure 28: PSRR vs. frequency
Figure 29: PSRR vs. frequency
Figure 30: PSRR vs. frequency
12/32
-100
-110
-120
-100
-110
-120
-100
-110
-120
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0
0
20
20
20
Vcc = 3.3V
Vripple = 200mVpp
Inputs = Grounded
Av = 2.5, Cin = 4.7 F
RL
Tamb = 25 C
Vcc = 2.6V
Vripple = 200mVpp
Inputs = Grounded
Av = 2.5, Cin = 4.7 F
RL
Tamb = 25 C
Vcc = 5V
Vripple = 200mVpp
Inputs = Floating
Rfeed = 20k
RL
Tamb = 25 C
8
8
8
100
100
100
Cb=1 F
Cb=1 F
Frequency (Hz)
Frequency (Hz)
Frequency (Hz)
Cb=1 F
Cb=0.47 F
Cb=0.47 F
Cb=0.47 F
1000
1000
1000
Cb=0.1 F
Cb=0.1 F
Cb=0.1 F
Cb=0
Cb=0
10000
10000
10000
Cb=0
20k
20k
20k
Figure 31: PSRR vs. frequency
Figure 32: PSRR vs. frequency
Figure 33: PSRR vs. common mode input
-100
-110
-120
-100
-110
-120
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
-20
-40
-60
-80
0
0
0
20
20
0
Vcc = 3.3V
Vripple = 200mVpp
Inputs = Floating
Rfeed = 20k
RL
Tamb = 25 C
Vcc = 2.6V
Vripple = 200mVpp
Inputs = Floating
Rfeed = 20k
RL
Tamb = 25 C
Vcc = 5V
Vripple = 200mVpp
Inputs Grounded
F = 217Hz
Av = 1
RL
Tamb = 25 C
voltage
8
8
8
100
100
1
Common Mode Input Voltage (V)
Cb=0
Electrical Characteristics
Frequency (Hz)
Frequency (Hz)
2
Cb=1 F
Cb=1 F
Cb=1 F
Cb=0.47 F
Cb=0.1 F
Cb=0.47 F
Cb=0.47 F
1000
1000
3
Cb=0.1 F
Cb=0.1 F
4
10000
10000
Cb=0
Cb=0
20k
20k
5