TS4975 datasheet(20/36 Pages) STMICROELECTRONICS

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Electrical Characteristics

TS4975

20/36

Figure 49. SNR vs. power supply voltage

Figure 50. SNR vs. power supply voltage

Figure 51. Frequency response

Figure 52. Current consumption vs. power

supply voltage

Figure 53. 3dB lower cut off frequency vs.

input capacitance

Figure 54. 3dB lower cut off frequency vs.

output capacitance

2.5

3.3

100

102

104

106

108

110

RL = 32

Ω

RL = 16

Ω

Out. mode 1 - 8

PHG, G = +18dB

Unweighted filter (20Hz to 20kHz)

THD+N < 0.5%

Tamb = 25

°C

Vcc (V)

2.5

3.3

100

102

104

106

108

110

RL = 32

Ω

RL = 16

Ω

Out. mode 1 - 8

PHG, G = +18dB

Weighted filter type A

THD+N < 0.5%

Tamb = 25

°C

Vcc (V)

100

1000

10000

Vcc = 5V, 3.3V, 2.5V

G = +2dB

Vcc = 5V, 3.3V, 2.5V

G = +18dB

Output mode 1 - 8

RL = 32, 16

Ω

Cin = 330nF

SE, PHG

BW < 125kHz

Tamb = 25

°C

Frequency (Hz)

012345

Reset state

PHG, Out. mode 5, 6, 7, 8

PHG, Out. Mode 1, 2, 3, 4

SE, Out. mode 5, 6, 7, 8

SE, Out. mode 1, 2, 3, 4

No loads

Tamb = 25

°C

Vcc (V)

100

Typical Input

Impedance

Maximum Input

Impedance

Minimum Input

Impedance

All gain setting

Tamb=25

°C

Input Capacitor Cin (

µF)

0.1

100

1000

100

RL=32

Ω

Output capacitor Cout (

µF)

All gain setting

Tamb = 25

°C

RL=16

Ω

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