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MAX9790AETJ+

更新时间： 2024-11-25 03:13:39

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
页数	文件大小	规格书
26页	1028K
描述
Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers

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MAX9790AETJ+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WHHD-2,TQFN-32	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	Factory Lead Time：	1 week
风险等级：	5.75	Is Samacsys：	N
标称带宽：	20 kHz	商用集成电路类型：	AUDIO AMPLIFIER
增益：	21.6 dB	JESD-30 代码：	S-XQCC-N32
JESD-609代码：	e3	长度：	5 mm
湿度敏感等级：	1	信道数量：	2
功能数量：	1	端子数量：	32
最高工作温度：	85 °C	最低工作温度：	-40 °C
标称输出功率：	2 W	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC32,.2SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Audio/Video Amplifiers	最大压摆率：	40 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.5 V
表面贴装：	YES	技术：	BICMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	5 mm	Base Number Matches：	1

MAX9790AETJ+ 数据手册

19-0606; Rev 0; 9/06

Windows Vista-Compliant, Stereo Class AB Speaker

Amplifiers and DirectDrive Headphone Amplifiers

8/MX790A

General Description

Features

The MAX9789A/MAX9790A combine a stereo, 2W Class

AB speaker power amplifier with a stereo 100mW

DirectDrive™ headphone amplifier in a single device.

The MAX9789A/MAX9790A are designed for use with the

Microsoft Windows Vista™ operating system and are fully

compliant with Microsoft’s Windows Vista specifications.

o Microsoft Windows Vista Compliant

o Class AB 2W Stereo BTL Speaker Amplifier

o 100mW DirectDrive Headphone Amplifier

Eliminates Costly, Bulky DC-Blocking Capacitors

o Excellent RF Immunity

†

The headphone amplifier features Maxim’s patented

o Integrated 120mA LDO (MAX9789A)

o High +90dB PSRR, Low 0.002% THD+N

o Low-Power Shutdown Mode

o Click-and-Pop Suppression

o Short-Circuit and Thermal-Overload Protection

DirectDrive architecture that produces a ground-refer-

enced output from a single supply to eliminate the need

for large DC-blocking capacitors, as well as save cost,

board space, and component height. A high +90dB

PSRR and low 0.002% THD+N ensures clean, low-distor-

tion amplification of the audio signal.

8kV ESD-Protected Headphone Driver Outputs

Separate speaker and headphone amplifier control

inputs provide independent shutdown of the speaker

and headphone amplifiers, allowing speaker and head-

phone amplifiers to be active simultaneously, if

required. The industry-leading click-and-pop suppres-

sion circuitry reduces audible transients during startup

and shutdown cycles.

o Available in 32-Pin Thin QFN (5mm x 5mm x

0.8mm) Package

Ordering Information

INTERNAL

LDO

PKG

CODE

PART

PIN-PACKAGE

MAX9789AETJ+

MAX9790AETJ+

32 Thin QFN-EP*

Yes

T3255N-1

The MAX9789A features an internal LDO that can be

used as a clean power supply for a CODEC or other cir-

cuits. The LDO output voltage is set internally at 4.75V or

can be adjusted between 1.21V and 4.75V using a sim-

ple resistive divider. The LDO is protected against ther-

mal overloads and short circuits while providing 120mA

of continuous output current and can be enabled inde-

pendently of the audio amplifiers.

Note: All devices are specified over the -40°C to +85°C extended

temperature range.

+Denotes lead-free package.

*EP = Exposed paddle.

Simplified Block Diagrams

By disabling the speaker and headphone amplifiers, and

the LDO (for MAX9789A), the MAX9789A/MAX9790A

enter low-power shutdown mode and draw only 0.3µA.

SPEAKER SUPPLY HEADPHONE SUPPLY

4.5V TO 5.5V

3.0V TO 5.5V

The MAX9789A/MAX9790A operate from a single 4.5V

to 5.5V supply and feature thermal-overload and out-

put short-circuit protection. Devices are specified over

the -40°C to +85°C extended temperature range.

SPKR_INR

MAX9789A

SPKR_INL

HP_INR

Applications

Notebook Computers

Tablet PCs

HP_INL

SPKR_EN

HP_EN

Portable Multimedia Players

MUTE

GAIN1

GAIN2

Pin Configurations appear at end of data sheet.

LDO

1.21V TO 4.75V

4.5V TO 5.5V

†

U.S. Patent # 7,061,327

Simplified Block Diagrams continued at end of data sheet.

Windows Vista is a trademark of Microsoft Corp.

________________________________________________________________ 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...26

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与MAX9790AETJ+相关器件

型号	品牌	获取价格	描述	数据表
MAX9790AETJ+T	MAXIM	获取价格	Audio Amplifier, 2W, 2 Channel(s), 1 Func, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIAN
MAX9790BETJ	MAXIM	获取价格	Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Ampl
MAX9790BETJ+	MAXIM	获取价格	Audio Amplifier, 2W, 2 Channel(s), 1 Func, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIAN
MAX9790BETJ+T	MAXIM	获取价格	Audio Amplifier, 2 Func, BICMOS, PQCC32
MAX9791	MAXIM	获取价格	Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers
MAX9791	ADI	获取价格	兼容于Windows Vista的D类扬声器放大器，具有DirectDrive耳机放大器
MAX9791_V01	MAXIM	获取价格	Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers
MAX9791A	MAXIM	获取价格	Wake-on-Beep Function
MAX9791AETI+	MAXIM	获取价格	Windows Vista-Compliant Class D Speaker Amplifiers with DirectDrive Headphone Amplifiers
MAX9791AEVKIT	MAXIM	获取价格	Wake-on-Beep Function

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