TAS5100A

SLES030 – FEBRUARY 2002

TRUE DIGITAL AUDIO AMPLIFIER

TAS5100A PWM POWER OUTPUT STAGE

1

www.ti.com

FEATURES

Quality Digital Audio Amplification

Into 6

Ω)

Requires No Heat-Sink When Using

Recommended Layout

Recommended System Design

APPLICATIONS

DESCRIPTION

True digital audio amplifier (TDAA) is a new paradigm

in digital audio. The TDAA system currently consists of

the

TAS5000

PCM-PWM

modulator

device

+

TAS5100A PWM power output device. This system

accepts a serial PCM digital audio stream and converts

it to a 3.3-V PWM audio stream (TAS5000). The

TAS5100A device then provides a large-signal PWM

output. This digital PWM signal is then demodulated

providing power output for driving loudspeakers. This

patented technology provides low-cost, high-quality,

high-efficient digital audio applicable to many audio

systems developed for the digital age. The TAS5100A

is a single-channel PWM power audio device. It

contains integrated gate drivers, four matched and

electrically isolated enhancement- mode N-channel

power DMOS transistors. Also, included are protection

and fault-reporting circuitry. This device is optimized for

use with the TAS5000 digital modulator.

TYPICAL TDAA STEREO AUDIO SYSTEM

Digital Audio

• TAS3001

• DSP

• SPDIF

• 1394

TAS5000

L-C

Filter

L-C

Filter

Left

Right

TAS5100

A

• Volume

• EQ

• DRC

• Bass

• Treble

• Serial Audio Input Port

• Internal PLL

• PCM–PWM Modulator

• 2 H-Bridge Power Devices

TAS5100

A

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

PowerPAD and Equibit are trademarks of Texas Instruments.

Copyright

 2002, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.