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Functional block diagram – Texas Instruments TPA3200D1 User Manual

Page 5

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Audio

Serial

Port

Serial

Control

Port

4x/8x

Oversampling

Digital

Filter

and

Function

Control

Multi-Level

Delta-Sigma

Modulator

Audio

Serial

Port

System Clock

BCK

LRCK

DATA

FORMAT

MUTE

DEMP

SCLK

DAC and

2:1 Mux

LR_SEL

VCOM

Gain

Adjust

+

+

Gain

Adjust

FLT1

FLT2

_

+

_

+

_

+

_

+

Deglitch

Logic

Deglitch

Logic

Gate

Drive

Gate

Drive

Clamp

Reference

Short-Circuit

Detect

Start-Up

Protection

Logic

Thermal

V

CC

OK

SD

Gain

SHUTDOWN

GAIN0
GAIN1

2

Biases

and

References

Ramp
Generator

VREF AGND AVCC

VREF

AV

CC

Power Supply

Zero Detect

COSC
ROSC

BYPASS

ZERO

VDD

DGND

VCLAMP
BSN

PVCC

OUTN

PGND
BSP

OUTP

PGND

PVCC

TPA3200D1

SLOS442A – MAY 2005 – REVISED JULY 2005

Functional Block Diagram

5