Datasheet > MAX9706

MAX9706

更新时间： 2024-11-29 04:41:31

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
25页	652K
描述
3-Channel, 2.3W, Filterless Class D Amplifiers with Active Crossover

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MAX9706 数据手册

19-3681; Rev 0; 12/05

3-Channel, 2.3W, Filterless Class D Amplifiers

with Active Crossover

General Description

Features

The MAX9706/MAX9707 combine three high-efficiency

Class D amplifiers with an active crossover to provide

stereo highpass outputs, and a mono lowpass output.

All three channels deliver up to 2.3W at 1% THD+N per

channel into 4Ω when operating from a 5V supply.

An internal active filter processes the stereo inputs (left

and right) into stereo highpass and mono lowpass out-

puts. The crossover frequency is pin-selectable to four

different frequencies to accommodate a variety of

speaker configurations. The internal Class D amplifiers

feature low-EMI, spread-spectrum outputs. No output

filters are required.

♦ Triple Class D Amplifiers Deliver 3 x 2.3W into 4Ω

♦ Internal Active Crossover Filter with Adjustable

Crossover Frequency

♦ Low-EMI, Spread-Spectrum Modulation

♦ Low 0.02% THD+N

♦ High PSRR (71dB)

♦ DirectDrive Headphone Amplifier (MAX9706)

♦ Enhanced Click-and-Pop Suppression

♦ Input and Output Modulator Synchronization

♦ Low-Power Shutdown Mode

The MAX9706 features Maxim’s patented DirectDrive™

headphone amplifier, providing ground-referenced

headphone outputs without the need for bulky DC-cou-

pling capacitors. The headphone outputs are capable

of delivering 95mW per channel into 16Ω from a 3.3V

supply, and are protected against ESD up to ±±kV.

♦ Up To 90% Efficiency

♦ Space-Saving (6mm x 6mm x 0.8mm) 36-Pin Thin

QFN Package

The MAX9706/MAX9707 feature pin-programmable

gain, synchronization inputs and outputs, and a shut-

down mode that reduces supply current to less than

1µA. All amplifiers feature click-and-pop suppression

circuitry. Both devices are fully specified over the -40°C

to +±5°C extended temperature range and are avail-

able in the thermally enhanced 36-pin (6mm x 6mm x

0.±mm) thin QFN package.

Ordering Information

PART

HP AMP PIN-PACKAGE

PKG CODE

T3666N-1

MAX9706ETX+

MAX9707ETX+

Yes

36 Thin QFN

+Denotes lead-free package.

Note: These devices operate over the -40°C to +85°C temper-

ature range.

Applications

Notebook Audio Solutions

2.1 Speaker Solutions

Desktop PCs

Multimedia Monitors

Portable DVD Players

Table-Top LCD TVs

Functional Diagrams and Pin Configurations appear at end

of data sheet.

Block Diagram

MAX9706

MAX9707

FULL-RANGE

TRANSDUCERS

AUDIO IN

FULL-RANGE

TRANSDUCERS

AUDIO IN

LOW-FREQUENCY

TRANSDUCER

LOW-FREQUENCY

TRANSDUCER

FREQUENCY

SELECT

FREQUENCY

SELECT

HEADPHONE

SHDN

________________________________________________________________ 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...25

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与MAX9706相关器件

型号	品牌	获取价格	描述	数据表
MAX9706ETX+	MAXIM	获取价格	3-Channel, 2.3W, Filterless Class D Amplifiers with Active Crossover
MAX9707	MAXIM	获取价格	3-Channel, 2.3W, Filterless Class D Amplifiers with Active Crossover
MAX9707ETX+	MAXIM	获取价格	3-Channel, 2.3W, Filterless Class D Amplifiers with Active Crossover
MAX9708	MAXIM	获取价格	20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier
MAX9708	ADI	获取价格	20W/40W、无需滤波的扩频单声道/立体声D类放大器
MAX9708_13	MAXIM	获取价格	20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier
MAX9708ECB	MAXIM	获取价格	20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier
MAX9708ECB-TD	MAXIM	获取价格	Audio Amplifier, 2 Func, BICMOS, PQFP64
MAX9708ETN	MAXIM	获取价格	20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier
MAX9708ETN/V+	MAXIM	获取价格	Audio Amplifier, 42W, 2 Channel(s), 1 Func, BICMOS, TQFN-56

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