TS4972IJT STMicroelectronics, TS4972IJT Datasheet - Page 7

• Manufacturer Part Number: TS4972IJT
• Description: 1.2W POWER AUDIO AMPLIFIER WITH STANDBY MODE ACTI
• Manufacturer: STMicroelectronics

Fig. 10 : Power Supply Rejection Ratio (PSRR)
vs Power supply
Fig. 12 : Power Supply Rejection Ratio (PSRR)
vs Bypass Capacitor
Fig. 14 : Power Supply Rejection Ratio (PSRR)
vs Feedback Resistor
-30
-40
-50
-60
-70
-80
-10
-20
-30
-40
-50
-60
-70
-80
-10
-20
-30
-40
-50
-60
-70
-80
10
10
10
Cb=100 F
Vripple = 200mVrms
Rfeed = 22
Input = floating
RL = 8
Tamb = 25 C
Vcc = 5, 3.3 & 2.6V
Cb = 1 F & 0.1 F
Vripple = 200mVrms
Input = floating
RL = 8
Tamb = 25 C
Vcc = 5V, 3.3V & 2.6V
Cb = 1 F & 0.1 F
100
Cb=1 F
100
100
Cb=10 F
Frequency (Hz)
Frequency (Hz)
Frequency (Hz)
Rfeed=47k
Rfeed=110k
1000
1000
1000
Vcc = 5, 3.3 & 2.6V
Rfeed = 22k
Rin = 22k, Cin = 1 F
Rg = 100 , RL = 8
Tamb = 25 C
Cb=47 F
10000
10000
10000
Rfeed=10k
Rfeed=22k
100000
100000
100000
vs Feedback Capacitor
Fig. 13 : Power Supply Rejection Ratio (PSRR)
vs Input Capacitor
Fig. 11 : Power Supply Rejection Ratio (PSRR)
-10
-20
-30
-40
-50
-60
-70
-80
-10
-20
-30
-40
-50
-60
10
10
Vcc = 5, 3.3 & 2.6V
Cb = 1 F & 0.1 F
Rfeed = 22k
Vripple = 200mVrms
Input = floating
RL = 8
Tamb = 25 C
Cin=1 F
Cin=22nF
Cin=330nF
Cin=100nF
100
100
Cin=220nF
Frequency (Hz)
Frequency (Hz)
1000
1000
Cfeed=150pF
Cfeed=330pF
Vcc = 5, 3.3 & 2.6V
Rfeed = 22k , Rin = 22k
Cb = 1 F
Rg = 100 , RL = 8
Tamb = 25 C
Cfeed=680pF
Cfeed=0
10000
10000
TS4972
100000
100000
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