LEFTINM

LEFTINP

RIGHTINM

RIGHTINP

CPP

CPN

CPVSS

VDD

VDD

GND

GND

HPRIGHT

HPLEFT

SD

TEST1

TEST2

Audio Source

0.47uF

0.47uF

0.47uF

0.47uF

1uF

1uF

1uF

1uF

VBAT

VBAT

GPIO

LEFT_OUTM

LEFT_OUTP

RIGHT_OUTM

RIGHT_OUTP

2.2KQ

TPA6133A2

www.ti.com

SLOS821 – JUNE 2013

138-mW DIRECTPATH™ STEREO HEADPHONE AMPLIFIER

Check for Samples: TPA6133A2

1

FEATURES

DESCRIPTION

The TPA6133A2 is a stereo DirectPath™ headphone

2

•

DirectPath™ Ground-Referenced Outputs

amplifier with GPIO control. The TPA6133A2 has

–

Eliminates Output DC Blocking Capacitors

minimal quiescent current consumption, with a typical

–

Reduces Board Area

applications. The GPIO control allows the device to

–

Reduces Component Height and Cost

be put in a low power shutdown mode.

–

Full Bass Response Without Attenuation

The TPA6133A2 is a high fidelity amplifier with an

•

Power Supply Voltage Range: 2.5 V to 5.5 V

SNR of 93 dB. A PSRR greater than 100 dB enables

•

High Power Supply Rejection Ratio

direct-to-battery connections without compromising

(>100 dB PSRR)

the listening experience. The output noise of 12

•

Differential Inputs for Maximum Noise

μVrms (typical A-weighted) provides a minimal noise

background during periods of silence. Configurable

Rejection (69 dB CMRR)

differential inputs and high CMRR allow for maximum

•

High-Impedance Outputs When Disabled

noise rejection in the noisy environment of a mobile

•

Advanced Pop and Click Suppression

device.

Circuitry

TPA6133A2 is available in a 4 by 4 mm QFN

•

GPIO Control for Shutdown

package.

•

20 Pin, 4 mm x 4 mm QFN Package

APPLICATIONS

•

Mobile Phones

•

Audio Headsets

•

Notebook Computers

•

High Fidelity Applications

SIMPLIFIED APPLICATION DIAGRAM

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

DirectPath is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2013, 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.