MAX9776ETJ+T Maxim Integrated Products, MAX9776ETJ+T Datasheet

MAX9776ETJ+T

Manufacturer Part Number

MAX9776ETJ+T

Description

IC AMP AUDIO PWR 1.5W D 32TQFN

Manufacturer

Maxim Integrated Products

Series

DirectDrive™r

Type

Class Dr

Datasheet

1.MAX9776ETJ.pdf (38 pages)

Specifications of MAX9776ETJ+T

Output Type

1-Channel (Mono) with Stereo Headphones

Max Output Power X Channels @ Load

1.5W x 1 @ 4 Ohm; 60mW x 2 @ 16 Ohm

Voltage - Supply

2.7 V ~ 5.5 V

Features

Depop, Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control

Mounting Type

Surface Mount

Package / Case

32-TQFN Exposed Pad

For Use With

MAX9776EVKIT+ - EVALUATION KIT FOR MAX9776

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX9775/MAX9776 combine a high-efficiency

Class D, stereo/mono audio power amplifier with a

mono DirectDrive

DirectDrive headphone amplifier.

Maxim’s 3rd-generation, ultra-low-EMI, Class D audio

power amplifiers provide Class AB performance with

Class D efficiency. The MAX9775/MAX9776 deliver

1.5W per channel into a 4Ω load from a 5V supply and

offer efficiencies up to 79%. Active emissions limiting

circuitry and spread-spectrum modulation greatly

reduce EMI, eliminating the need for output filtering

found in traditional Class D devices.

The MAX9775/MAX9776 utilize a fully differential archi-

tecture, a full-bridged output, and comprehensive click-

and-pop suppression. A 3D stereo enhancement

function allows the MAX9775 to widen the stereo sound

field immersing the listener in a cleaner, richer sound

experience than typically found in portable applications.

The devices utilize a flexible, user-defined mixer archi-

tecture that includes an input mixer, volume control, and

output mixer. All control is done through I

The mono receiver amplifier and stereo headphone

amplifier use Maxim’s DirectDrive architecture that pro-

duces a ground-referenced output from a single supply,

eliminating the need for large DC-blocking capacitors,

saving cost, space, and component height.

The MAX9775 is available in a 36-bump WLP (3mm x

3mm) package. The MAX9776 is available in a 32-pin

TQFN (5mm x 5mm) or a 36-bump WLP (3mm x 3mm)

package. Both devices are specified over the extended

-40°C to +85°C temperature range.

19-0746; Rev 4; 8/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Cell Phones

Portable Multimedia Players

Handheld Gaming Consoles

2 x 1.5W, Stereo Class D Audio Subsystem

________________________________________________________________ Maxim Integrated Products

INTERFACE

receiver amplifier and a stereo

CONTROL

GAIN

General Description

with DirectDrive Headphone Amplifier

SINGLE SUPPLY 2.7V TO 5.5V

MAX9775

MIXER/

MUX

Applications

CONTROL

SOUND

♦ Unique Spread-Spectrum Modulation and Active

♦ 3D Stereo Enhancement (MAX9775 Only)

♦ Up to 3 Stereo Inputs

♦ 1.5W Stereo Speaker Output (4Ω, V

♦ 50mW Mono Receiver/Stereo Headphone Outputs

♦ High PSRR (68dB at 217Hz)

♦ 79% Efficiency (V

♦ I

♦ Click-and-Pop Suppression

♦ Low Total Harmonic Distortion (0.03% at 1kHz)

♦ Current-Limit and Thermal Protection

♦ Available in Space-Saving, 36-Bump WLP (3mm x

Note: All devices are specified over the -40°C to +85°C oper-

ating temperature range.

+ Denotes a lead-free/RoHS-compliant package.

* Four center bumps depopulated.

** EP = Exposed pad.

Pin Configurations appear at end of data sheet.

DirectDrive is a registered trademark of Maxim Integrated

Products, Inc.

MAX9775EBX+T

MAX9776ETJ+

MAX9776EBX+T

Emissions Limiting Significantly Reduces EMI

(32Ω, V

470mW)

Output Mode

3mm) and 32-Pin TQFN (5mm x 5mm) Packages

C Control—Input Configuration, Volume Control,

PART

INTERFACE

CONTROL

GAIN

Simplified Block Diagrams

= 3.3V)

SINGLE SUPPLY 2.7V TO 5.5V

MAX9776

MIXER/

MUX

Ordering Information

PIN-PACKAGE

36 WLP*

32 TQFN-EP**

36 WLP*

= 3.3V, R

= 8Ω, P

Features

= 5V)

AMPLIFIER

OUT

CLASS D

Stereo

Mono

Related parts for MAX9776ETJ+T

MAX9776ETJ+T Summary of contents

Page 1

... MUX INTERFACE MAX9775 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ Unique Spread-Spectrum Modulation and Active Emissions Limiting Significantly Reduces EMI ♦ 3D Stereo Enhancement (MAX9775 Only) ♦ Stereo Inputs ♦ ...

Page 2

Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier ABSOLUTE MAXIMUM RATINGS V to GND.............................................................................. PGND .........................................................................6V DD CPV to CPGND ....................................................................6V DD CPV to CPGND .....................................................-6V to +0. CPGND..........................................................-6V to ...

Page 3

Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued CPV = 3.3V GND 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN ...

Page 4

Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued CPV = 3.3V GND 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN ...

Page 5

Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued CPV = 3.3V GND 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN ...

Page 6

Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued CPV = 3.3V GND 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN ...