TAS5100

SLLS419B − MARCH 2001 − REVISED NOVEMBER 2001

TRUE DIGITAL AUDIO AMPLIFIER

TAS5100 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 + TAS5100

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 TAS5100 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 TAS5100 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

• Volume

• EQ

• DRC

• Bass

• Treble

• Serial Audio Input Port

• Internal PLL

• PCM−PWM Modulator

• 2 H-Bridge Power Devices

TAS5100

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

 2001, 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.