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MAX9728BEUD+ PDF预览

MAX9728BEUD+

更新时间： 2024-09-15 11:14:11
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光电二极管信息通信管理
页数 文件大小 规格书
19页 277K
描述
60mW, DirectDrive, Stereo Headphone Amplifiers with Shutdown

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中文翻译

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MAX9728BEUD+ 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP, TSSOP14,.25针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：17 weeks
风险等级：5.45Is Samacsys：N
标称带宽：22 kHz商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：R-PDSO-G14JESD-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：14最高工作温度：85 °C
最低工作温度：-40 °C标称输出功率：0.063 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）：260
电源：5 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：5.5 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：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：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

MAX9728BEUD+ 数据手册

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19-3963; Rev 1; 7/09  
60mW, DirectDrive, Stereo  
Headphone Amplifiers with Shutdown  
General Description  
Features  
♦ No Bulky DC-Blocking Capacitors Required  
The MAX9728A/MAX9728B stereo headphone ampli-  
fiers are designed for display and notebook applica-  
tions or portable equipment where board space is at a  
premium. These devices use a unique, patented  
DirectDrive™ architecture to produce a ground-refer-  
enced output from a single supply, eliminating the need  
for large DC-blocking capacitors, saving cost, board  
space, and component height. The MAX9728A offers  
an externally adjustable gain, while the MAX9728B has  
an internally preset gain of -1.5V/V. The MAX9728A/  
MAX9728B deliver up to 60mW per channel into a 32Ω  
load and have low 0.02% THD+N. An 80dB at 1kHz  
power-supply rejection ratio (PSRR) allows these  
devices to operate from noisy digital supplies without  
an additional linear regulator. Comprehensive click-  
and-pop circuitry suppresses audible clicks and pops  
on startup and shutdown.  
♦ Low-Power Shutdown Mode, < 0.1µA  
♦ Adjustable Gain (MAX9728A) or Fixed -1.5V/V  
Gain (MAX9728B)  
♦ Low 0.02% THD+N  
♦ High PSRR (80dB at 1kHz) Eliminates LDO  
♦ Integrated Click-and-Pop Suppression  
♦ 4.5V to 5.5V Single-Supply Operation  
♦ Low Quiescent Current (3.5mA)  
♦ Available in Space-Saving Packages  
12-Pin Thin QFN (3mm x 3mm x 0.8mm)  
14-Pin TSSOP (5mm x 4.4mm x 1.1mm)  
The MAX9728A/MAX9728B operate from a single 4.5V  
to 5.5V supply, consume only 3.5mA of supply current,  
feature short-circuit and thermal-overload protection,  
and are specified over the extended -40°C to +85°C  
temperature range. The devices are available in tiny 12-  
pin Thin QFN (3mm x 3mm x 0.8mm) and 14-pin  
TSSOP packages (5mm x 4.4mm x 1.1mm).  
Ordering Information  
PART  
GAIN (V/V) PIN-PACKAGE TOP MARK  
MAX9728AETC+  
MAX9728AEUD+  
MAX9728BETC+  
MAX9728BEUD+  
Adj.  
Adj.  
-1.5  
-1.5  
12 TQFN-EP*  
14 TSSOP  
ABC  
—
12 TQFN-EP*  
14 TSSOP  
ABD  
—
Applications  
CRT TVs  
Note: All devices specified over the -40°C to +85°C operating  
Notebook PCs  
DVD Players  
range.  
+Denotes lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
Multimedia Monitors  
LCD/PDP Displays  
Pin Configurations appear at end of data sheet.  
Block Diagrams  
MAX9728B  
MAX9728A  
DirectDrive OUTPUTS  
DirectDrive OUTPUTS  
ELIMINATE DC-BLOCKING  
LEFT  
AUDIO  
INPUT  
ELIMINATE DC-BLOCKING  
CAPACITORS  
LEFT  
AUDIO  
INPUT  
CAPACITORS  
SHDN  
SHDN  
RIGHT  
RIGHT  
AUDIO  
INPUT  
FIXED GAIN ELIMINATES  
AUDIO  
EXTERNAL RESISTOR  
INPUT  
NETWORK  
________________________________________________________________ Maxim Integrated Products  
1
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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