MAX4409EUD

更新时间： 2024-11-28 04:41:55

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
19页	427K
描述
80mW, DirectDrive Stereo Headphone Amplifier with Common-Mode Sense

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MAX4409EUD 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	4.40 MM, MO-153AB-1, TSSOP-14	针数：	14
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	5.36
标称带宽：	22 kHz	商用集成电路类型：	AUDIO AMPLIFIER
JESD-30 代码：	R-PDSO-G14	JESD-609代码：	e0
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：	14	最高工作温度：	85 °C
最低工作温度：	-40 °C	标称输出功率：	0.08 W
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP14,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	240
电源：	3 V	认证状态：	Not Qualified
座面最大高度：	1.1 mm	子类别：	Audio/Video Amplifiers
最大压摆率：	8.4 mA	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	1.8 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn85Pb15)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	20	宽度：	4.4 mm

MAX4409EUD 数据手册

19-2842; Rev 1; 6/04

8 0 m W, Dire c t Drive , S t e re o He a d p h o n e

Am p lifie r w it h Co m m o n -Mo d e S e n s e

Ge n e ra l De s c rip t io n

Fe a t u re s

The MAX4409 stereo headphone amplifier combines

Maxim’s DirectDrive architecture and a common-mode

sense input, which allows the amplifier to reject com-

mon-mode noise. Conventional headphone amplifiers

require a bulky DC-blocking capacitor between the

headphone and the amplifier. DirectDrive produces a

ground-referenced output from a single supply, elimi-

na ting the ne e d for la rg e DC-b loc king c a p a c itors ,

which saves cost, board space, and component height.

The common-mode voltage sensing corrects for any

d iffe re nc e b e twe e n SGND of the a mp lifie r a nd the

headphone return. This feature minimizes ground-loop

noise when the HP socket is used as a line out connec-

tion to other grounded equipment, for example, a PC

connected to a home hi-fi system.

♦ No Bulky DC-Blocking Capacitors Required

♦ Ground-Referenced Outputs Eliminate DC-Bias

Voltages on Headphone Ground Pin

♦ Common-Mode Voltage Sensing Eliminates

Ground-Loop Noise

♦ 96dB CMRR

♦ No Degradation of Low-Frequency Response Due

to Output Capacitors

♦ 80mW per Channel into 16Ω

♦ Low 0.002% THD+N

♦ High 86dB PSRR

♦ Integrated Click-and-Pop Suppression

♦ 1.8V to 3.6V Single-Supply Operation

♦ Low Quiescent Current

♦ Low-Power Shutdown Mode

♦ Short-Circuit and Thermal-Overload Protection

♦ ±8kV ESD-Protected Amplifier Outputs

♦ Available in Space-Saving Packages

14-Pin TSSOP

The MAX4409 draws only 5mA of supply current, deliv-

ers up to 80mW per channel into a 16Ω load, and has a

low 0.002% THD+N. A high 86dB power-supply rejec-

tion ratio allows this device to operate from noisy digital

supplies without additional power-supply conditioning.

The MAX4409 includes ±8kV ESD protection on the

headphone outputs. Comprehensive click-and-pop cir-

cuitry eliminates audible clicks and pops on startup

and shutdown. A low-power shutdown mode reduces

supply current draw to only 6µA.

20-Pin Thin QFN (4mm x 4mm x 0.8mm)

Ord e rin g In fo rm a t io n

The MAX4409 operates from a single 1.8V to 3.6V sup-

ply, has short-circuit and thermal overload protection,

and is specified over the extended -40°C to +85°C tem-

perature range. The MAX4409 is available in tiny 20-pin

thin QFN (4mm x 4mm x 0.8mm) and 14-pin TSSOP

packages.

PART

TEMP RANGE

PIN-PACKAGE

MAX4409ETP

MAX4409EUD

-40°C to +85°C

20 Thin QFN-EP*

14 TSSOP

*EP = Exposed paddle.

Fu n c t io n a l Dia g ra m

Ap p lic a t io n s

Notebooks

DirectDrive OUTPUTS

Desktop PCs

Cellular Phones

PDAs

ELIMINATE DC-BLOCKING

CAPACITORS

MAX4409

LEFT

AUDIO

INPUT

MP3 Players

Tablet PCs

SHDN

Portable Audio Equipment

COM

RIGHT

AUDIO

INPUT

COMMON-MODE

SENSE INPUT ELIMINATES

GROUND-LOOP NOISE

Pin Configurations and Typical Application Circuit 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...19

中文翻译

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