TAS5026IPAG datasheet(6/48 Pages) TI

6 / 48 page

Introduction

SLES041B—November 2002

TAS5026

Introduction

The TAS5026 is an innovative, cost-effective, high-performance 24-bit six-channel digital pulse width

modulator (PWM) based on Equibit

 technology. Combined with a TI digital amplifier power stage, these

devices use noise-shaping and sophisticated error correction algorithms to achieve high power efficiency and

high-performance digital audio reproduction. The TAS5026 is designed to drive up to six digital power devices

to provide six channels of digital audio amplification. The digital power devices can be six conventional

monolithic power stages (such as TAS5110) or six discrete differential power stages using gate drivers and

MOSFETs.

The TAS5026 has six independent volume controls and mute. It is designed to drive a digital amplifier power

stage (such as the TAS5182) in an H-bridge (bridge tied load) configuration. The device operates in AD mode.

This all-digital audio system contains only two analog components in the signal chain—an LC low-pass filter

at each speaker terminal and can provide up to 96-dB SNR at the speaker terminals. The TAS5026 has a wide

variety of serial input options including right justified (16, 20, or 24 bit), I2S (16, 20, or 24 bit) left justified, or

DSP (16-bit) data formats. The device is fully compatible with AES standard sampling rates of 44.1 kHz, 48

kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz including de-emphasis for 44.1-kHz and 48-kHz sample rates.

The TAS5026 was designed for home theater applications such as DVD minicomponent systems, home

theater in a box (HTIB), DVD receiver, A/V receiver, or TV sets.

1.1

Features

•

True Digital Audio Amplifier

•

High Quality Audio

–

96-dB SNR

–

<0.1% THD+N

•

Six-Channel Volume Control

–

Patented Soft Volume

–

Patented Soft Mute

•

16-, 20-, or 24-Bit Input Data

•

Sampling Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz

•

Supports Master and Slave Modes

•

3.3-V Power Supply Operation

•

Economical 64-Pin TQFP Package

•

Digital De-Emphasis: 32 kHz, 44.1 kHz, and 48 kHz

•

High Power Efficiency

•

Clock Oscillator Circuit for Master Modes

•

Low Jitter Internal PLL

•

Soft Volume and Mute Update

•

Excellent PSRR

Equibit is a trademark of Texas Instruments Incorporated.

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