WMSIC Electronic Components

WILLSEMI WMM7037AT2-4/TR WMM7037AT2

ModelWMM7037AT2-4/TR
PackageLGA-4(3x3.8)
BrandWILLSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WMM7037AT2-4 / TR
Type
WILLSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
WMM7037AT2-4/TR
Electronic Component
1
Electronic Component
2.95mm
Package
LGA-4(3x3.8)
Electronic Component
MEMSMicrophone
Electronic Component
0.114g
Electronic Component
3.76mm
Electronic Component
200Ω
Electronic Component
1.1mm
Electronic Component
59dB
Electronic Component
Electronic Component
Electronic Component
42dB
Electronic Component
1
Features
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

WMM7037AT2-4/TR 产品概述

一、产品简介

WMM7037AT2-4/TR 是 WILLSEMI(韦尔)推出的一款高性能模拟输出全指向声学传感器,采用 LGA-4 (3.0×3.8 mm) 小型封装,尺寸紧凑(长 3.76 mm、宽 2.95 mm、高 1.1 mm),适用于空间受限的便携式与嵌入式终端。器件工作电压宽范围 1.5 V 至 3.6 V,静态工作电流仅 80 µA,兼顾低功耗与高灵敏度,适配电池供电的终端产品。

二、主要电气与声学参数

  • 输出类型:模拟输出(单端)
  • 指向性:全指向(Omnidirectional)
  • 工作电压:1.5 V ~ 3.6 V
  • 工作电流:典型 80 µA(低功耗)
  • 灵敏度:-42 dB(典型)
  • 信噪比:59 dB(典型)
  • 阻抗:200 Ω(典型)
  • 封装:LGA-4 (3×3.8 mm)
  • 外形尺寸:长 3.76 mm × 宽 2.95 mm × 高 1.1 mm

注:上述声学参数为典型值,具体性能受测试条件与封装布局影响,选型时建议参考厂家完整数据手册。

三、典型应用场景

  • 移动电话、平板、便携音频设备的语音拾取与通话降噪
  • 智能家居与语音助手终端(唤醒词/远场拾音前端)
  • 穿戴设备与健康监测设备(低功耗音频检测)
  • 物联网终端、远程传感与安全监控(声学事件检测)
  • 听力辅助设备与微型录音设备

四、封装与安装建议

  • 封装类型为 LGA-4,器件底部为焊盘接脚,建议在 PCB 设计时预留与封装尺寸匹配的焊盘与防焊开窗,保证良好焊接性与声学通路。
  • 为获得稳定的机械和电气性能,推荐采用回流焊贴装,使用适度的焊膏量以避免焊球过多或空洞。遵循厂家推荐的回流温度曲线与焊接工艺。
  • 麦克风声孔(若为顶/底声孔型)不得被覆盖或阻塞,拾音口应朝向声源方向并避免近距离阻挡件。
  • 器件附近应保留声学腔体或声学孔道,避免在器件正上方布置会产生共振或回声的金属/塑料结构。

五、设计与电路连接注意事项

  • 电源去耦:在 VDD 与 GND 之间靠近器件焊盘放置 0.1 µF 陶瓷去耦电容,以抑制电源纹波与瞬态噪声。
  • 输出接口:模拟输出建议通过直流隔离耦合电容与后级 ADC 或放大器连接,并在需要时设置合适的偏置电压或直流耦合网络。
  • 接地与屏蔽:良好接地能降低 EMI 对灵敏度与 SNR 的影响。建议在 PCB 顶层布置接地平面,焊盘周围适当加固地线连接,避免长而环绕的模拟信号走线。
  • 阻抗匹配:输出阻抗典型约 200 Ω,后端采样电路输入阻抗应明显高于此值以避免信号衰减。必要时可加入运放缓冲以提升驱动能力。

六、可靠性与使用建议

  • 防静电:在取件和贴装过程中注意 ESD 保护,遵循人体带电放电 (HBM) 防护规范。
  • 工作温度与储存:遵循厂家提供的环境与储存温度范围,避免高温潮湿环境长期存放或工作。
  • 验证与调试:在量产前进行声学响应、灵敏度、SNR 以及电源波动下的性能验证,评估 PCB 声学腔体对频响的影响。

七、结语与资料获取

WMM7037AT2-4/TR 以其小尺寸、低功耗与较高的信噪比,适合各类需精确拾音但空间受限的应用。在最终设计前,建议索取 WILLSEMI 的完整数据手册与推荐 PCB 封装图(封装尺寸与焊盘样式),并与供应商确认订购信息与出货包装(如卷带/托盘)。如需进一步的封装图、典型电路或声学测试数据,可联系厂家技术支持获取详细资料。

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