1

FEATURES

APPLICATIONS

DESCRIPTION

0

5

10

15

20

25

30

35

5

10

15

20

25

G009

THD+N = 1%

THD+N = 10%

f = 1 kHz

Gain = 3 dB

TAS5102

TAS5103

20-W/15-W STEREO DIGITAL AMPLIFIER POWER STAGE

A low-cost, high-fidelity audio system can be built

using a TI chipset, comprising a modulator (e.g.,

2

• 2×20 W at 10% THD+N Into 8-Ω BTL at 18 V

TAS5086) and the TAS5102/TAS5103. This system

(With Heatsink for TAS5102)

only requires a simple passive LC demodulation filter

• 2×15 W at 10% THD+N Into 8-Ω BTL at 15.5 V

to

deliver

high-quality,

high-efficiency

audio

for TAS5103

amplification with proven EMI compliance. These

devices require two power supplies, at 3.3 V for

• 2×10 W at 10% THD+N Into 8-Ω BTL at 13 V

VREG,

and

up

to

23

V

for

PVDD.

The

• >100-dB SNR (A-Weighted)

TAS5102/TAS5103

does

not

require

power-up

• <0.1% THD+N at 1 W

sequencing due to internal power-on reset. The

efficiency of this digital amplifier is greater than 90%

• Thermally Enhanced Package: 32-pin HTSSOP

into 8

Ω, which enables the use of smaller power

–

DAD (TAS5102) Pad Up

supplies and heatsinks.

–

DAP (TAS5103) Pad Down

The TAS5102/3 has an innovative protection system

• High-Efficiency Power Stage (>90%) With

integrated on chip, safeguarding the device against a

180-m

Ω Output MOSFETs

wide range of fault conditions that could damage the

• Wide PVDD Range from 8V to 23V

system. These safeguards are short-circuit protection,

overcurrent protection, undervoltage protection, and

• Power-On Reset for Protection on Power Up

overtemperature protection. The TAS5102/TAS5103

Without Any Power-Supply Sequencing

has a new proprietary current-limiting circuit that

• Integrated Self-Protection Circuits Including

reduces the possibility of device shutdown during

Undervoltage, Overtemperature, Overcurrent,

high-level music transients.

Short Circuit

BTL OUTPUT POWER

• Built-In Regulator for Gate Drive Supply

vs

SUPPLY VOLTAGE

• Error Reporting

• EMI Compliant When Used With

Recommended System Design

• Televisions

• Mini/Micro Audio Systems

• DVD Receivers

• Home Theaters

The TAS5102/TAS5103 are integrated stereo digital

amplifier power stages with an advanced protection

system. The TAS5102/TAS5103 are capable of

driving an 8-

Ω bridge-tied load (BTL) at up to 20

W/15 W per channel with low integrated noise at the

output, low THD+N performance, and low idle power

dissipation.

1

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.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.