MAX9700AETB Maxim Integrated Products, MAX9700AETB Datasheet

MAX9700AETB

Manufacturer Part Number

MAX9700AETB

Description

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX9700BEUB.pdf (19 pages)

Specifications of MAX9700AETB

Case

QFN

Date_code

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MAX9700AETB(ACM)

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The MAX9700 mono class D audio power amplifier pro-

vides class AB amplifier performance with class D effi-

ciency, conserving board space and extending battery

life. Using a class D architecture, the MAX9700 delivers

1.2W into an 8

90%. A patented, low-EMI modulation scheme renders

the traditional class D output filter unnecessary.

The MAX9700 offers two modulation schemes: a fixed-

frequency (FFM) mode, and a spread-spectrum (SSM)

mode that reduces EMI-radiated emissions due to the

modulation frequency. Furthermore, the MAX9700 oscil-

lator can be synchronized to an external clock through

the SYNC input, allowing the switching frequency to be

user defined. The SYNC input also allows multiple

MAX9700s to be cascaded and frequency locked, mini-

mizing interference due to clock intermodulation. The

device utilizes a fully differential architecture, a full-

bridged output, and comprehensive click-and-pop sup-

pression. The gain of the MAX9700 is set internally

(MAX9700A: 6dB, MAX9700B: 12dB, MAX9700C:

15.6dB, MAX9700D: 20dB), further reducing external

component count.

The MAX9700 features high 72dB PSRR, a low 0.01%

THD+N, and SNR in excess of 90dB. Short-circuit and

thermal-overload protection prevent the device from

damage during a fault condition. The MAX9700 is avail-

able in 10-pin TDFN (3mm

µMAX, and 12-bump UCSP™ (1.5mm

packages. The MAX9700 is specified over the extended

-40°C to +85°C temperature range.

19-3030; Rev 1; 6/04

UCSP is a trademark of Maxim Integrated Products, Inc.

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.

Cellular Phones

PDAs

DIFFERENTIAL

AUDIO INPUT

INPUT

SYNC

load while offering efficiencies above

________________________________________________________________ Maxim Integrated Products

OSCILLATOR

General Description

3mm

Block Diagram

AND H-BRIDGE

MP3 Players

Portable Audio

MODULATOR

MAX9700

Applications

0.8mm), 10-pin

2mm

0.6mm)

1.2W, Low-EMI, Filterless,

Class D Audio Amplifier

♦ Filterless Amplifier Passes FCC Radiated

♦ Unique Spread-Spectrum Mode Offers 5dB

♦ Optional External SYNC Input

♦ Simple Master-Slave Setup for Stereo Operation

♦ 94% Efficiency

♦ 1.2W into 8

♦ Low 0.01% THD+N

♦ High PSRR (72dB at 217Hz)

♦ Integrated Click-and-Pop Suppression

♦ Low Quiescent Current (4mA)

♦ Low-Power Shutdown Mode (0.1µA)

♦ Short-Circuit and Thermal-Overload Protection

♦ Available in Thermally Efficient, Space-Saving

Ordering Information continued at end of data sheet.

Selector Guide appears at end of data sheet.

MAX9700AETB

MAX9700AEUB

MAX9700AEBC-T

MAX9700BETB

MAX9700BEUB

MAX9700BEBC-T

Pin Configurations continued at end of data sheet.

Emissions Standards with 100mm of Cable

Emissions Improvement Over Conventional

Methods

Packages

10-Pin TDFN (3mm

10-Pin µMAX

12-Bump UCSP (1.5mm

TOP VIEW

PART

SHDN

GND

IN+

IN-

TEMP RANGE

-40

Ordering Information

C to +85

TDFN/ MAX

MAX9700

Pin Configurations

3mm

2mm

0.8mm)

PIN-

PACKAGE

10 TDFN

10 µMAX

12 UCSP-12

10 TDFN

10 µMAX

12 UCSP-12

OUT-

OUT+

PGND

SYNC

0.6mm)

Features

MARK

ACM

TOP

ACI

—

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