TA0105A Ver la hoja de datos (PDF) - Tripath Technology Inc.

Número de pieza

componentes Descripción

Fabricante

TA0105A

STEREO CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPP™) TECHNOLOGY

Tripath Technology Inc. 

Tripath Technology, Inc. - Technical Information

3) Use the following equation to calculate the resulting minimum VNN overvoltage restart point,

VNNOVRSTMIN

VNN OVRSTMIN

= 1.25 − R VNN1 ∗ 152 µA

R VNN1 + 1

1.27M Ω

4) Use the following equation to calculate the resulting maximum VPP undervoltage restart point,

VNNUVRSTMAX

VNN UVRSTMAX

= 1.25 − RVNN1 ∗ 95 µA

R VNN1 + 1

1.27M Ω

The usable (inside the hysteresis band) negative supply range is defined by VNNOVRSTMIN minus

VNNUVRSTMAX.

TA0105A

VNN

24 VNN

RVNN1

1000pF

38 VLOW

AGND

VPP

23 VPP

RVPP1

1000pF

37 VHIGH

AGND

Figure 4: External Overvoltage and Undervoltage Shift

21

TA0105A – RW/ Rev. 2.2/05.05

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