TS4900
Fig. 10 : Power Supply Rejection Ratio (PSRR)
vs Power supply
Fig. 11 : Power Supply Rejection Ratio (PSRR)
vs Feedback Capacitor
-30
Vripple = 200mVrms
Rfeed = 22Ω
-40 Input = floating
RL = 8Ω
Tamb = 25°C
-50
Vcc = 5V, 3.3V & 2.6V
-60
Cb = 1µF & 0.1µF
-70
-80
10
100
1000
10000
Frequency (Hz)
100000
-10
Vcc = 5, 3.3 & 2.6V
-20 Cb = 1µF & 0.1µF
Rfeed = 22kΩ
-30 Vripple = 200mVrms
Input = floating
-40 RL = 8Ω
Tamb = 25°C
-50
Cfeed=0
Cfeed=150pF
Cfeed=330pF
-60
-70
Cfeed=680pF
-80
10
100
1000
10000
Frequency (Hz)
100000
Fig. 12 : Power Supply Rejection Ratio (PSRR)
vs Bypass Capacitor
-10
Cb=1µF
Vcc = 5, 3.3 & 2.6V
-20
Rfeed = 22k
Cb=10µF Rin = 22k, Cin = 1µF
-30
Rg = 100Ω, RL = 8Ω
Tamb = 25°C
-40
Cb=47µF
-50
-60
-70 Cb=100µF
-80
10
100
1000
10000
Frequency (Hz)
100000
Fig. 13 : Power Supply Rejection Ratio (PSRR)
vs Input Capacitor
-10
Cin=1µF
Vcc = 5, 3.3 & 2.6V
-20
Cin=330nF
Cin=220nF
Rfeed = 22kΩ, Rin = 22k
Cb = 1µF
Rg = 100Ω, RL = 8Ω
-30
Tamb = 25°C
-40
Cin=100nF
-50
Cin=22nF
-60
10
100
1000
10000
Frequency (Hz)
100000
Fig. 14 : Power Supply Rejection Ratio (PSRR)
vs Feedback Resistor
-10
Vcc = 5, 3.3 & 2.6V
-20 Cb = 1µF & 0.1µF
Vripple = 200mVrms
-30 Input = floating
RL = 8Ω
-40 Tamb = 25°C
Rfeed=110kΩ
Rfeed=47kΩ
-50
-60
-70
-80
10
Rfeed=22kΩ
Rfeed=10kΩ
100
1000
10000
Frequency (Hz)
100000
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