RTJ

YZH

www.ti.com

FEATURES

APPLICATIONS

DESCRIPTION

Shutdown

Control

TPA4411

SDR SDL

G0

G1

TPA2012D2

TLV320AIC26

or

TLV320AIC28

INR+

INR−

HPL

or

SPK1

HPR

or

SPK2

To Battery

INL+

INL−

PGND

AGND

OUTR+

OUTR−

OUTL+

OUTL−

Gain

Control

APPLICATION CIRCUIT

TPA2012D2

SLOS438 – DECEMBER 2004

2.1 W/CH STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

•

Wireless or Cellular Handsets and PDAs

•

2.1 W/Ch Into 4

Ω at 5 V

•

Portable DVD Player

•

1.4 W/Ch Into 8

Ω at 5 V

•

Notebook PC

•

720 mW/Ch Into 8

Ω at 3.6 V

•

Portable Radio

•

Only Two External Components Required

•

Portable Gaming

•

Power Supply Range: 2.5 V to 5.5 V

•

Educational Toys

•

Independent Shutdown Control for Each

Channel

•

USB Speakers

•

Selectable Gain of 6, 12, 18, and 24 dB

•

Internal Pulldown Resistor On Shutdown Pins

•

High PSRR: 77 dB at 217 Hz

The TPA2012D2 is a stereo, filter-free Class-D audio

amplifier available in a WCSP or QFN package. The

•

Fast Startup Time (3.5 ms)

TPA2012D2 only requires two external components

•

Low Supply Current

for operation.

•

Low Shutdown Current

The TPA2012D2 features independent shutdown

•

Short-Circuit and Thermal Protection

controls for each channel. The gain can be selected

•

Space Saving Packages

to 6, 12, 18, or 24 dB utilizing the G0 and G1 gain

•

2 mm X 2 mm NanoFree™ WCSP (YZH)

select pins. High PSRR and differential architecture

(Future Product)

provide increased immunity to noise and RF rectifi-

•

4 mm X 4 mm Pb-Free Thin QFN (RTJ)

cation. In addition to these features, a fast startup

with PowerPAD™

time and small package size make the TPA2012D2

an ideal choice for both cellular handsets and PDAs.

The TPA2012D2 is capable of driving 1.4 W/Ch at

5 V or 720 mW/Ch at 3.6 V into 8

Ω. The TPA2012D2

is also capable of driving 4

Ω. The TPA2012D2

provides thermal and short circuit protection.

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.

NanoFree, PowerPAD are trademarks of Texas Instruments.

UNLESS OTHERWISE NOTED this document contains PRO-

Copyright © 2004, Texas Instruments Incorporated

DUCTION DATA information current as of publication date. Prod-

ucts conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily

include testing of all parameters.