MAX9763 Maxim Integrated Products, MAX9763 Datasheet

MAX9763

Manufacturer Part Number

MAX9763

Description

(MAX9760 - MAX9763) Stereo 3W Audio Power Amplifiers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX9763.pdf (31 pages)

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The MAX9760–MAX9763 family combines a stereo or

mono 3W bridge-tied load (BTL) audio power amplifier,

stereo single-ended headphone amplifier, headphone

sensing, and a 2:1 input multiplexer all in a tiny 28-pin

thin QFN package. These devices operate from a sin-

gle 4.5V to 5.5V supply and feature an industry-leading

100dB PSRR, allowing these devices to operate from

noisy supplies without the addition of a linear regulator.

An ultra-low 0.002% THD+N ensures clean, low-distor-

tion amplification of the audio signal. Patented click-

and-pop suppression eliminates audible transients on

power and shutdown cycles. Power-saving features

include low 4mV V

through the speakers), low 13mA supply current, and a

10µA shutdown mode. A MUTE function allows the out-

puts to be quickly enabled or disabled.

A headphone sense input detects the presence of a

headphone jack and automatically configures the

amplifiers for either speaker or headphone mode. In

speaker mode, the amplifiers can deliver up to 3W of

continuous average power into a 3Ω load. In head-

phone mode, the amplifier can deliver up to 200mW of

continuous average power into a 16Ω load. The gain of

the amplifiers is externally set, allowing maximum flexi-

bility in optimizing output levels for a given load. The

amplifiers also feature a 2:1 input multiplexer, allowing

multiple audio sources to be selected. The multiplexer

can also be used to compensate for limitations in the

frequency response of the loud speakers by selecting

an external equalizer network. The various functions are

controlled by either an I

control interface.

The MAX9760–MAX9763 are available in either a ther-

mally efficient 28-pin thin QFN package (5mm

0.8mm) or a TSSOP-EP package. All devices have ther-

mal overload protection (OVP) and are specified over

the extended -40°C to +85°C temperature range.

19-2744; Rev 0; 1/03

Pin Configurations and Functional Diagrams appear at end

of data sheet.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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________________________________________________________________ Maxim Integrated Products

Stereo 3W Audio Power Amplifiers with

General Description

(minimizes DC current drain

C-compatible or simple parallel

Applications

Headphone Drive and Input Mux

5mm

o Industry-Leading, Ultra-High 100dB PSRR

o PC99/01 Compliant

o 3W BTL Stereo Speaker Amplifier

o 200mW Stereo Headphone Amplifier

o Low 0.002% THD+N

o Patented Click-and-Pop Suppression

o ESD-Protected Outputs

o Low Quiescent Current: 13mA

o Low-Power Shutdown Mode: 10µA

o MUTE Function

o Headphone Sense Input

o Stereo 2:1 Input Multiplexer

o Optional 2-Wire, I

o Tiny 28-Pin Thin QFN (5mm

*EP = Exposed paddle.

Ordering Information continued at end of data sheet.

MAX9760ETI

MAX9760EUI

CONTROL

RIGHT IN

Interface

TSSOP-EP Packages

LEFT IN

PART

Simplified Block Diagram

COMPATIBLE

BTL

SE/

C-

-40°C to +85°C

TEMP RANGE

SINGLE SUPPLY

4.5V TO 5.5V

C-Compatible or Parallel

Ordering Information

MAX9760

5mm

PIN-PACKAGE

28 Thin QFN-EP*

28 TSSOP-EP*

Features

0.8mm) and

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