Datasheet> 器件分类 > 半导体> 模拟混合信号IC> NAU8214SG

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NAU8214SG: 产品描述IC AMP AUDIO 3W CLASS D 20QFN; 产品类别半导体模拟混合信号IC; 文件大小1MB，共25页; 制造商Nuvoton(新唐科技); 官网地址http://www.nuvoton.com.cn/hq/; 标准

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NAU8214SG概述

IC AMP AUDIO 3W CLASS D 20QFN

NAU8214SG规格参数

参数名称	属性值
类型	D 类
输出类型	1-通道（单声道）
不同负载时的最大输出功率 x 通道数	2.9W x 1 @ 4 欧姆
电压 - 电源	2.5 V ~ 5.5 V
特性	消除爆音，短路和热保护
工作温度	-40°C ~ 85°C（TA）

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NAU8214 2.9W Mono Filter-Free Class-D Audio Amplifier

Table of Contents

1.1

1.2

Description .................................................................................................................................................. 2

Pin Descriptions .......................................................................................................................................... 3

Operating Characteristics ............................................................................................................................ 5

1.3

1.4

Absolute Maximum Ratings ......................................................................................................................... 6

1.5

Recommended Operating Conditions ......................................................................................................... 6

1.6

Special Feature Description ........................................................................................................................ 7

1.7

Device Protection .......................................................................................................................................16

1.7.1

Thermal Overload Protection ..............................................................................................................16

1.7.2

1.7.3

Short Circuit Protection .......................................................................................................................16

Supply under Voltage Protection .........................................................................................................16

1.8

Max Power Limiting feature ........................................................................................................................16

1.8.1

Power limiting VDD independent configuration ...................................................................................17

1.8.2

1.8.3

1.8.4

1.8.5

Power limiting VDD dependent configuration ......................................................................................17

ATTACK TIME, HOLD TIME, AND RELEASE TIME...........................................................................17

Attach time Plot ...................................................................................................................................18

Hold & Release plots ...........................................................................................................................18

1.9

Power up and Power down Control ............................................................................................................18

1.10

Application diagram ....................................................................................................................................19

1.10.1

Single ended input configuration .........................................................................................................19

1.10.2

Differential input configuration .............................................................................................................19

1.11

Component selection ..................................................................................................................................19

1.11.1

Coupling Capacitors ............................................................................................................................19

1.11.2

Bypass Capacitors ..............................................................................................................................20

1.12

Layout considerations ................................................................................................................................20

1.13

Class D without filter ...................................................................................................................................20

1.14

Class D with filter ........................................................................................................................................20

1.14.1

Ferrite Bead filter .................................................................................................................................21

1.14.2

LC filter ................................................................................................................................................21

1.15

NAU8214 EMI performance .......................................................................................................................22

Package Dimensions ...............................................................................................................................................23

1.16

20 Pin QFN Package ..................................................................................................................................23

1.17

8 pin SOP package

...................................................................................................................................24

Ordering Information ...............................................................................................................................................25

1.18

Nuvoton Part Number Description ..............................................................................................................25

NAU8214 Data Sheet Rev1.6

Page 1 of 25

April 22, 2015