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MAX14628ETA+T

更新时间： 2024-01-10 14:20:20
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
16页 2521K
描述
Low-Power Headset Detectors with SEND/END Button Support

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中文翻译

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MAX14628ETA+T 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HVSON,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.68JESD-30 代码：S-PDSO-N8
长度：2 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：NOT SPECIFIED座面最大高度：0.8 mm
标称供电电压：3.6 V表面贴装：YES
技术：BICMOS电信集成电路类型：TELECOM CIRCUIT
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：2 mm
Base Number Matches：1

MAX14628ETA+T 数据手册

 浏览型号MAX14628ETA+T的Datasheet PDF文件第2页浏览型号MAX14628ETA+T的Datasheet PDF文件第3页浏览型号MAX14628ETA+T的Datasheet PDF文件第4页浏览型号MAX14628ETA+T的Datasheet PDF文件第5页浏览型号MAX14628ETA+T的Datasheet PDF文件第6页浏览型号MAX14628ETA+T的Datasheet PDF文件第7页 
19-6310; Rev 0; 5/12  
E V A L U A T I O N K I T A V A I L A B L E  
General Description  
Benefits and Features  
The MAX14627/MAX14628 provide a simple solution for  
detecting the insertion and managing the operation of a  
3.5mm stereo headset with a microphone. These devices  
integrate all circuitry needed to detect SEND/END button  
press events and generate required microphone bias volt-  
ages, and are fully compatible with Windows Mobile 7.  
The devices need only three GPIOs from the host control-  
ler to select between call mode and standby mode, and  
monitor the SEND/END and jack insertion status. In call  
mode, the low-noise LDO is enabled to provide DC bias to  
the externally preamplified microphone. In standby mode,  
microphone low-power pulsing is enabled to reduce sup-  
ply current while waiting for a SEND/END button press  
event. Two open-drain outputs signal the host controller  
when an insertion/removal or SEND/END button press  
event occurs. If a 3P headset without a microphone is  
inserted, the low-power pulsing can be disabled by setting  
the MODE input to high impedance.  
The MAX14627 operates from a 2.5V to 5.5V input voltage  
supply and features an internal 2.2V LDO output, while the  
MAX14628 operates from a 3.1V to 5.5V voltage supply  
and features an internal 2.8V LDO output voltage. Both  
devices control jack insertion detection by monitoring a  
3.5mm socket with a normally open jack insertion switch.  
Additionally, the MAX14628 features open microphone  
detection.  
S Versatile Jack Detection and Control  
MODE Three-State Microphone Bias Control  
MIC Switch Ground Detection (MAX14627)  
MIC Switch Open and Ground Detection  
(MAX14628)  
S Compatible with Windows Mobile 7 and Google  
Android  
Microphone Button Press Detection  
S High-Performance MIC Bias and Power Savings  
No Pop-Up Noises  
Ultra-Low Noise, High-PSRR MIC Bias  
Low-Power MIC Idle Mode  
Automatic Ultra-Low-Power Mode When  
Microphone Is Disabled  
S PCB Space and Cost Savings  
Integrated 1ꢀkV ESD Protection (HBM) on  
DETIN and MIC Input Terminals  
Small 8-Pin (2mm x 2mm) TDFN Package  
Applications  
Cell Phones  
Portable Media Players  
Tablet/Laptop PCs  
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/MAX14627.related.  
Windows Mobile is a registered trademark of Microsoft Corporation.  
The MAX14627/MAX14628 are available in an 8-pin TDFN  
package, and are fully specified over the -40NC to +85NC  
extended temperature range.  
Typical Operating Circuits  
V
CC  
Typical Operating Circuits continued  
at end of data sheet.  
MIC  
AUDIO DIRECT  
DRIVE  
1µF  
V
CC  
MODE  
SWD  
CAP  
RES  
1µF  
V
V
IO  
IO  
1MI  
1MI  
MAX14628  
2.2kI  
PROCESSOR  
MIC  
LEFT  
DET  
MIC  
MICROPHONE  
SEND/  
END  
DET  
DETIN  
RIGHT  
GND  
EP/GND  
����������������������������������������������������������������� 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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