WMSIC Electronic Components

MAXLINEAR SP3494EN-L/TR SP3494EN

ModelSP3494EN-L/TR
PackageSOIC-8
BrandMAXLINEAR
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 23+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
MAXLINEAR SP3494EN-L / TR
Type
MAXLINEAR
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MAXLINEAR
Electronic Component
SP3494EN-L/TR
Electronic Component
1
Package
SOIC-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.001g
Electronic Component
32
Electronic Component
1
Features
Tx / Rx;;; Low Power
Electronic Component
BM0000515114
Operating Temperature
40℃~+85℃
Operating Voltage
3V~3.6V
Receiver
1

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

SP3494EN-L/TR 产品概述

一、概述

SP3494EN-L/TR 是 MAXLINEAR(迈凌)提供的一款轻量化差分收发器,面向工业与嵌入式通信总线应用。器件为 1 驱动 / 1 接收 的半双工收发结构,工作电压范围为 3.0 V 到 3.6 V,典型静态电流约 2 mA,支持高达 2.5 Mbps 的数据速率,并能在多点网络中驱动最多 32 个节点。器件在 -40 ℃ 至 +85 ℃ 的工业温度范围内稳定工作,封装为易于贴装的 8-SOIC,L/TR 后缀表示卷带包装,适合自动化贴片生产。

二、主要性能特点

  • 收发器类型:半双工差分收发(1 驱动 / 1 接收)
  • 工作电压:3.0 V ~ 3.6 V,适配 3.3 V 体系
  • 数据速率:最高 2.5 Mbps,适用于高速短/中距离差分通信
  • 节点数:支持多点网络,最多可达 32 个节点
  • 静态电流:约 2 mA,适合对功耗有要求的应用
  • 工作温度:-40 ℃ ~ +85 ℃,满足工业级环境需求
  • 静电保护:对接触放电具 ±2 kV 抗扰度
  • 封装:8-SOIC,体积小便于高密度 PCB 布局

三、典型应用场景

  • 工业自动化现场总线与设备通讯
  • 楼宇控制与监控系统
  • 电表、传感器网络与数据采集终端
  • 嵌入式控制器间短距离高速差分链路
  • 需要卷带贴片生产的中小批量模块化产品

四、设计与使用建议

  • 半双工通讯:器件工作于半双工链路,系统设计中需要对方向控制进行管理(主控端在发送时使能驱动),如使用单线方向使能或 MCU 控制引脚切换发送/接收状态。
  • 总线终端与偏置:建议在总线两端配置合适的终端电阻(常见 120 Ω)以保证信号完整性,并在需要时增加偏置电阻以维持空闲总线电平,避免接收端误触发。
  • 电源与去耦:在 VCC 引脚附近放置 0.1 μF 旁路电容,降低电源噪声对高速收发性能的影响;在多节点系统中注意良好接地和共模回路设计。
  • ESD 与线路保护:器件本身具有 ±2 kV 的静电保护能力,但建议在外部连接器处添加额外的浪涌/雷击保护元件(如 TVS)以提高可靠性,特别是室外或长线应用场合。
  • 布局注意:8-SOIC 封装占板面积小,建议差分信号走对称等长线、避免穿越大电流回路,减小串扰与信号失真。

五、封装与订购信息

  • 封装形式:8 引脚 SOIC(便于自动贴装)
  • 包装形式:L/TR(卷带包装),便于 SMT 产线直接上料
  • 品牌:MAXLINEAR(迈凌)
  • 建议在采购与生产前确认完整的器件型号与封装后缀,以便与 PCB 焊盘、贴片程序和库存管理相匹配。

六、总结

SP3494EN-L/TR 是一款面向工业和嵌入式差分半双工网络的低功耗、高速收发器,适用于需要多节点、宽温度范围及自动化贴片装配的场合。结合合适的总线终端、偏置与保护设计,可在现场总线、楼宇控制和数据采集系统中提供可靠的差分通信能力。如需进一步的引脚定义、时序和电气参数,请参考厂商详细资料或向供应商索取原始数据手册。

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