TS419 datasheet(21/32 Pages) STMICROELECTRONICS

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TS419-TS421

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Fig. 68: Signal to Noise Ratio vs Power Supply

Voltage with Unweighted Filter (20Hz to 20kHz)

Fig. 70: Noise Floor

Fig. 72: PSRR vs Power Supply Voltage

Fig. 69: Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

Fig. 71: Noise Floor

Fig. 73: PSRR vs Input Capacitor

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Av = 4

Cb = 1

µF

THD+N < 0.5%

Tamb = 25

°C

RL=32

Ω

RL=16

Ω

RL=8

Ω

Power Supply Voltage (V)

100

1000

10000

Standby=OFF

Standby=ON

RL>=16

Ω

Vcc=5V

Av=4

Cb = 1

µF

Input Grounded

Bw < 125kHz

Tamb=25

°C

20k

Frequency (Hz)

100

1000

10000

100000

-80

-70

-60

-50

-40

-30

-20

-10

Vcc = 2V

Vcc = 5V, 3.3V & 2.5V

Vripple = 100mVrms

Rfeed = 40k

Ω

Input = floating

Cb = 1

µF

RL >= 16

Ω

Tamb = 25

°C

Frequency (Hz)

2.0

2.5

3.0

3.5

4.0

4.5

5.0

100

Av = 4

Cb = 1

µF

THD+N < 0.5%

Tamb = 25

°C

RL=32

Ω

RL=16

Ω

RL=8

Ω

Power Supply Voltage (V)

100

1000

10000

Standby=OFF

Standby=ON

RL>=16

Ω

Vcc=2V

Av=4

Cb = 1

µF

Input Grounded

Bw < 125kHz

Tamb=25

°C

20k

Frequency (Hz)

100

1000

10000

100000

-60

-50

-40

-30

-20

-10

Cin = 100nF

Cin = 1

µF, 220nF

Vripple = 200mVpp

Av = 4, Vcc = 5V

Input = grounded

Cb = 1

µF, Rin = 20kΩ

RL >= 16

Ω

Tamb = 25

°C

Frequency (Hz)

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