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MAX9759ETE+

更新时间： 2024-01-07 02:55:43

品牌	Logo	应用领域
美信 - MAXIM		消费电路商用集成电路音频放大器视频放大器信息通信管理 PC
页数	文件大小	规格书
20页	955K
描述
3.2W, High-Efficiency, Low-EMI, Filterless, Class D Audio Amplifier

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MAX9759ETE+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	TSSOP, TSSOP16,.25
Reach Compliance Code：	compliant	风险等级：	5.69
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e3	功能数量：	1
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：	3.3/5 V	认证状态：	Not Qualified
子类别：	Audio/Video Amplifiers	最大压摆率：	12 mA
表面贴装：	YES	技术：	BICMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.635 mm
端子位置：	DUAL	Base Number Matches：	1

MAX9759ETE+ 数据手册

19-3691; Rev 0; 5/05

3.2W, High-Efficiency, Low-EMI, Filterless,

Class D Audio Amplifier

General Description

Features

The MAX9759 mono class D, audio power amplifier

provides class AB amplifier audio performance with the

benefits of class D efficiency, eliminating the need for a

heatsink and extending battery life. The MAX9759 deliv-

ers up to 3.2W of continuous power into a 4 load while

offering greater than 90% efficiency. Maxim’s next-gen-

eration, low-EMI modulation scheme allows the amplifi-

er to operate without an external LC filter while still

meeting FCC EMI-radiated emission levels.

♦ 3.2W into 4 Load (THD+N = 10%)

♦ Filterless Amplifier Passes FCC Radiated

Emissions Standards with 7.6cm of Cable

♦ 92% Efficiency

♦ High PSRR (81dB at 1kHz)

♦ Low 0.02% THD+N

♦ External Clock Synchronization for Multiple,

The MAX9759 offers two modulation schemes: a fixed-

frequency modulation (FFM) mode and a spread-spec-

trum modulation (SSM) mode. The SSM mode flattens

the wideband spectral components, reducing EMI-radi-

ated emissions due to the modulation frequency.

Furthermore, the MAX9759 oscillator can be synchro-

nized to an external clock through the SYNC input,

allowing the switching frequency to range from

1000kHz to 1600kHz. The SYNC input and SYNC_OUT

output of the MAX9759 allow multiple Maxim class D

amplifiers to be cascaded and frequency locked, mini-

mizing interference due to clock intermodulation. The

MAX9759 utilizes fully differential input amplifiers, a full-

bridged output, comprehensive click-and-pop suppres-

sion, and features four selectable gain settings (6dB,

12dB, 18dB, 24dB).

Cascaded Maxim Class D Amplifiers

♦ 3.0V to 5.5V Single-Supply Operation

♦ Pin-Selectable Gain (6dB, 12dB, 18dB, 24dB)

♦ Integrated Click-and-Pop Suppression

♦ Low Quiescent Current (8.4mA)

♦ Low-Power Shutdown Mode (10µA)

♦ Mute Function

♦ Short-Circuit and Thermal-Overload Protection

♦ Available in Thermally Efficient Packages

16-Pin TQFN (4mm x 4mm x 0.8mm)

16-Pin TSSOP

The MAX9759 features high 81dB PSRR, low 0.02%

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

thermal-overload protection prevents damage to the

device during a fault condition. The MAX9759 operates

from a single 5V supply, consumes 8.4mA of supply

current, and is available in a 16-pin thin QFN package

(4mm x 4mm x 0.8mm) and a 16-pin TSSOP package.

The MAX9759 is fully specified over the extended -40°C

to +85°C temperature range.

Ordering Information

PART

TEMP RANGE

-40 C to +85 C

PIN-PACKAGE

16 TQFN-EP*

16 TSSOP

MAX9759ETE+

MAX9759EUE+

+Denotes lead-free package.

*EP = Exposed paddle.

Simplified Block Diagram

Applications

Cell Phones/PDAs

Notebook PCs

DIFFERENTIAL

AUDIO INPUT

MODULATOR

AND H-BRIDGE

MONO SPEAKER

OUTPUT

Portable DVD Players

Flat-Panel PC Monitors

LCD TVs

SYNC

INPUT

OSCILLATOR

LCD Projectors

GAIN

CONTROL

SYNC

OUTPUT

SHDN

CONTROL

SHDN

MAX9759

MUTE

CONTROL

MUTE

Pin Configurations appear at end of data sheet.

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...20

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