1

FEATURES

DESCRIPTION

APPLICATIONS

SIMPLIFIED APPLICATION DIAGRAM

AVdd

INL-

INL+

AGND

PGND

OUTL+

OUTL-

PVddR

10 F

m

ToBattery

AGC2

INR-

INR+

C

1 F

IN

m

OUTR+

OUTR-

AGC1

EN

Enable1

Enable2

MasterShutdown

TPA2017D2

(optional)

Digital

BaseBand

Analog

Baseband

or

CODEC

PVddL

TPA2017D2

and AGC

• Filter-Free Class-D Architecture

The

TPA2017D2

(sometimes

referred

to

as

TPA2017) is a stereo, filter-free Class-D audio power

amplifier

with

dynamic

range

–

AGC DRC Function

compression (DRC), automatic gain control (AGC),

–

AGC Limiter Function

and noise gate. It is available in a 4 mm x 4mm QFN

–

AGC Noise Gate Function

package.

• 1.7 W/Ch Into 8 Ω at 5 V (10% THD+N)

functions

are

configured

to

automatically prevent distortion of the audio signal

• 750 mW/Ch Into 8 Ω at 3.6 V (10% THD+N)

and enhance quiet passages that are normally not

• 2.8 W/Ch Into 4 Ω at 5 V (10% THD+N)

• 1.5 W/Ch Into 4 Ω at 3.6 V (10% THD+N)

Limiter that protects the speaker from damage at high

• Power Supply Range: 2.5 V to 5.5 V

power levels and compress the dynamic range of

voice or music to fit within the dynamic range of the

• Low Supply Current: 3.5 mA

• Low Shutdown Current: 0.2 µA

functions

can

be

enabled

or

disabled.

The

• High PSRR: 75 dB at 217 Hz

TPA2017D2 (TPA2017) is capable of driving 1.7

W/Ch at 4 V or 750mW/Ch at 3.6 V into 8

Ω load or

• Fast Start-up Time: 5 ms

2.8 W/Ch at 5 V or 1.5 W/Ch at 3.6 V into 4

Ω. The

• Short-Circuit and Thermal Protection

device features an enable pin and also provides

• Space-Saving Package

thermal and short circuit protection.

–

4 mm × 4 mm QFN (RTJ)

In addition to these features, a fast start-up time and

small package size make the TPA2017D2 (TPA2017)

an ideal choice for Notebook PCs, PDAs and other

portable applications.

• Wireless or Cellular Handsets and PDAs

• Portable Navigation Devices

• Portable DVD Player

• Notebook PCs

• Portable Radio

• Portable Games

• Educational Toys

• USB Speakers

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009, 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.