Datasheet > MAX98314

MAX98314

更新时间： 2024-09-17 11:14:11

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
14页	2229K
描述
Mono 3.2W Class D Amplifier with Integrated Input Coupling Capacitors

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MAX98314 数据手册

19-6124; Rev 0; 11/11

E V A L U A T I O N K I T A V A I L A B L E

MAX98314

Mono 3.2W Class D Amplifier

with Integrated Input Coupling Capacitors

General Description

Features

The MAX98314 mono 3.2W Class D amplifier provides

Class AB audio performance with Class D efficiency.

This device offers five selectable gain settings (0dB,

3dB, 6dB, 9dB, and 12dB) set by a single gain-select

input (GAIN).

S Integrated Input Coupling Capacitors with

Excellent Linearity

 f = 100Hz (6dB)

 f = 200Hz (12dB)

S Low Quiescent Current

 0.95mA at 3.7V

Active emissions limiting (AEL) edge rate and overshoot

control circuitry and a filterless spread-spectrum modu-

lation (SSM) scheme greatly reduce EMI and eliminate

the need for output filtering found in traditional Class D

devices.

 1.2mA at 5.0V

S Delivers High Output Power at 10% THD+N

 3.2W into 4I, V

 960mW into 8I, V

= 5V

PVDD

= 3.7V

PVDD

The IC’s low 0.95mA at 3.7V, 1.2mA at 5.0V quiescent

current extends battery life in portable applications.

S Ultra-Low Noise: 19µV

S Eliminates Output Filtering Requirement

Highly linear, integrated input coupling capacitors (C )

 Spread Spectrum and Active Emissions Limiting

reduce solution size and provide excellent THD+N, PSRR,

and CMRR performance at low frequencies vs. standard

Class D amplifiers using external input capacitors.

S Click-and-Pop Suppression

S Thermal and Overcurrent Protection

S Low Current Shutdown Mode

S Small, Space-Saving Package

The IC is available in a small 9-bump, 0.3mm pitch WLP

(1.0mm x 1.0mm x 0.80mm) package and is specified

over the -40NC to +85NC extended temperature range.

Applications

Simplified Block Diagram

Mobile Phones

Portable Audio

Notebook Computers

MP3 Players

MAX98314

CLASS D

MODULATOR

AND H-BRIDGE

Netbook Computers

VoIP Phones

GAIN CONTROL

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX98314.related

�� 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.

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