Class-D Audio Power Stage

ADAU1513

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2007 Analog Devices, Inc. All rights reserved.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2007 Analog Devices, Inc. All rights reserved.

FEATURES

Integrated stereo power stage

Efficiency > 90%

Short-circuit protection

Overtemperature protection

APPLICATIONS

Flat panel televisions

PC audio systems

Mini components

GENERAL DESCRIPTION

The ADAU1513 is a 2-channel bridge-tied load (BTL)

Class-D audio power stage. The power stage can drive the

speaker loads of 4 Ω at up to 15 W per channel at high

efficiency. The 4-channel audio system can be formed when

used with an ADAV4201 pulse-width modulator (PWM)

processor using two ADAU1513s. The power stage accepts a

3.3 V logic differential PWM as input from an ADAV4201

processor. The power stage comprises thermal and output

short-circuit protection with logic-level error flag outputs for

interfacing to a system microcontroller along with reset and

mute control of the power stage. The power stage operates from

a range of power supply voltages from 9 V up to 18 V. The low

power digital logic operates from a 3.3 V supply. The power

stage can be used with modulators other than the ADAV4201.

Contact your local sales department for application assistance.

FUNCTIONAL BLOCK DIAGRAM

A1

PVDD

OUTL+

PGND

A2

B1

PVDD

OUTL–

PGND

B2

C1

PVDD

OUTR+

PGND

C2

D1

PVDD

OUTR–

PGND

D2

LEVEL SHIFT

AND DEAD

TIME CONTROL

TEMPERATURE/

OVERCURRENT

PROTECTION

MODE CONTROL

LOGIC

ADAU1513

VOLTAGE

REFERENCE

INL+

INL–

INR+

INR–

AVDD

AGND

DVDD

DGND

OTW

ERR

MUTE

STDN

Figure 1.