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ADI/LINEAR HMC472ALP4ETR
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR HMC472ALP4ETR
- Type
- ADI/LINEAR
- Minimum package
- 500 圆盘
Technical parameters
- Power
- 560mW
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- HMC472ALP4ETR
- Electronic Component
- 1
- Package
- QFN-24-EP(4x4)
- Electronic Component
- RF Attenuator
- Electronic Component
- 0.6g
- Electronic Component
- 50Ω
- Electronic Component
- 31.5dB
- Electronic Component
- 1
- Features
- Programmable; Interface
- Electronic Component
- BM0227656009
- Operating Temperature
- 40℃~+85℃
- Electronic Component
- 1.4dB
- Electronic Component
- 0.5dB
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HMC472ALP4ETR 产品概述
一、产品简介
HMC472ALP4ETR 是 ADI/Linear（原 Hittite）系列的高可靠性可调射频衰减器，适配 50Ω 系统。器件提供从 0.5 dB 细分步进到最大 31.5 dB 的衰减范围，覆盖直流至 3.8 GHz 的频带，额定功耗 560 mW，工作温度 -40℃ 至 +85℃。封装为 QFN-24-EP (4×4 mm)，带裸露焊盘便于热管理与接地。
二、主要特点
- 衰减范围：0.5 dB 步进，最大 31.5 dB（适合精确增益控制与衰减校准）
- 频率范围：0 Hz ～ 3.8 GHz，覆盖常见蜂窝、WLAN、GPS 及低频雷达带宽
- 阻抗：50 Ω 匹配，便于直接集成于射频传输链路
- 功率与温度：最大功耗 560 mW；工作温度 -40℃ ～ +85℃
- 封装：QFN-24-EP (4×4 mm)，裸露焊盘用于散热与接地
三、典型应用
- 无线基站/射频前端的可编程衰减与增益平衡
- 自动增益控制（AGC）回路与接收灵敏度调节
- 射频测试与测量设备中的可编程衰减器
- 仪表、无线设备、低中频雷达与信号链校准
四、设计与布局建议
- 裸露焊盘：在 PCB 下方配置等分的热沉焊盘并增加多根过孔(Vias)贯通至内部/底层散热层，确保热阻最小化。
- 射频走线：保持 50Ω 微带/带状线阻抗连续性，避免锋利弯角与不必要的串联元件。
- 电源与控制：控制线应加旁路与滤波，数字控制端口需做上拉/下拉和串联限流以防瞬态。
- 焊接工艺：按厂商推荐的无铅回流曲线焊接，避免过高温度和过长保温时间以保护封装与内部结构。
- ESD 与过压保护：在生产与调试环节注意静电防护，必要时在输入端添加限幅/保护结构。
五、可靠性与测试要点
- 热管理：在高环境温度或长时间较大输入功率场景下，应进行功耗热仿真并实施散热设计，避免超过 560 mW 的器件耗散限制或按温度降额使用。
- 性能验证：建议在目标电路上验证衰减精度、回波损耗(S11)、插入损耗及相位漂移随频率/温度的变化。
- 资料参考：在设计前请参阅 ADI 官方数据手册获取详尽的引脚定义、控制逻辑、开关时序、典型性能曲线和推荐 PCB 封装图样。
六、采购与封装信息
- 品牌：ADI（亚德诺）/LINEAR
- 封装：QFN-24-EP (4×4 mm)，裸露焊盘便于热接触与接地
- 订购时请确认完整料号 HMC472ALP4ETR 及包装形式（卷带/盘），并参考最新数据手册以获取最终电气与机械规格。
如需针对特定频段的性能曲线、热仿真建议或 PCB 焊盘参考图，我可以基于目标板栈层与功率预算给出更具体的布局与散热方案。
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