TS486 datasheet(17/31 Pages) STMICROELECTRONICS

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TS486-TS487

17/31

Fig. 49: Signal to Noise Ratio vs Power Supply

Voltage with Unweighted Filter (20Hz to 20kHz)

Fig. 51: PSRR vs Power Supply Voltage

Fig. 53: PSRR vs Input Capacitor

Fig. 50: Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

Fig. 52: PSRR vs Bypass Capacitor

Fig. 54: PSRR vs Output Capacitor

2.0

2.5

3.0

3.5

4.0

4.5

5.0

100

102

104

Av = -1

Cb = 1

µF

THD+N < 0.4%

Tamb = 25

°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Power Supply Voltage (V)

100

1000

10000

100000

-80

-70

-60

-50

-40

-30

-20

-10

Vcc = 2V

Vcc = 5V, 3.3V & 2.5V

Vripple = 200mVpp

Av = -1

Input = grounded

Cb = 1

µF

RL >= 16

Ω

Tamb = 25

°C

Frequency (Hz)

100

1000

10000

100000

-70

-60

-50

-40

-30

-20

-10

Cin = 100nF

Cin = 1

µF, 220nF

Vripple = 200mVpp

Av = -1, Vcc = 5V

Input = grounded

Cb = 1

µF, Rin = 20kΩ

RL >= 16

Ω

Tamb = 25

°C

Frequency (Hz)

2.0

2.5

3.0

3.5

4.0

4.5

5.0

100

102

104

Av = -1

Cb = 1

µF

THD+N < 0.4%

Tamb = 25

°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Power Supply Voltage (V)

100

1000

10000

100000

-80

-70

-60

-50

-40

-30

-20

-10

Cb = 4.7

µF

Cb = 2.2

µF

Cb = 1

µF

Vripple = 200mVpp

Av = -1

Input = grounded

Vcc = 5V

RL >= 16

Ω

Tamb = 25

°C

Frequency (Hz)

100

1000

10000

100000

-80

-70

-60

-50

-40

-30

-20

-10

Cout = 220

µF

Cout = 470

µF

Vripple = 200mVpp

Av = -1, Vcc = 5V

Input = grounded

Cb = 1

µF, RL = 16Ω

RL >= 16

Ω

Tamb = 25

°C

Frequency (Hz)

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