WMSIC Electronic Components

Mini-Circuits PMA3-83LNW+

ModelPMA3-83LNW+
PackageQFN-12
BrandMini-Circuits
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Mini-Circuits PMA3-83LNW+
Type
MINI-CIRCUITS
Unit
Electronic Component
Minimum package
1000

Technical parameters

IP3
37dBm
P1dB
20.5dBm
Electronic Component
Electronic Component
Electronic Component
MINI-CIRCUITS
Electronic Component
PMA3-83LNW+
Electronic Component
20.5dB
Electronic Component
1
Package
QFN-12
Electronic Component
RFAmplifier
Electronic Component
0.034g
Frequency
400MHz~8GHz
Electronic Component
1
Electronic Component
BM0265000517
Noise Figure
2.2dB
Operating Temperature
40℃~+105℃
Operating Voltage
4.75V~5.25V;5.75V~6.75V

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

PMA3-83LNW+ 产品概述

PMA3-83LNW+ 是 Mini-Circuits 提供的一款宽带射频放大器 MMIC,覆盖 400 MHz 至 8 GHz 的频率范围,适合多种通信、测试与测量以及雷达前端应用。该器件在宽频带内提供约 20.5 dB 的增益与较低的噪声系数,配合高线性指标与良好的回波损耗特性,可作为接收机低噪声放大或发射链路中的驱动级使用。

一、主要性能亮点

  • 频率范围:400 MHz ~ 8 GHz,宽带覆盖常见无线电、微波频段。
  • 增益:20.5 dB,提供稳定的中高增益提升。
  • 噪声系数:2.2 dB,利于提升接收机灵敏度并降低系统噪声温度。
  • 输出 1 dB 压缩点 (P1dB):20.5 dBm,表征在高输出功率下保持线性能力。
  • 三阶互调 (IP3):37 dBm,线性好,能有效抑制互调干扰。
  • 输入/输出回波损耗:输入 18 dB、输出 24 dB,反映良好的驻波匹配性能,减少反射与功率损失。
  • 工作电压:4.75 V5.25 V 和 5.75 V6.75 V(提供两档偏置范围以适配不同系统设计)。
  • 工作电流:典型 75 mA(请参照厂商数据以获取精确偏置条件下的电流值)。
  • 工作温度:-40 ℃~+105 ℃,适合工业与恶劣环境应用。
  • RoHS 合规,符合环境与可靠性要求。

二、典型应用场景

  • 无线基站与基带前端增益级
  • 便携与固定无线接入设备的接收前端
  • 测试与测量仪器中的宽带放大模块
  • 卫星通信、军事通信与雷达信号链低噪声放大/驱动级
  • 宽带中继与信号整形系统

三、系统设计与应用建议

  • 偏置:器件支持两档工作电压区间(约 5 V 与 6 V 区间),在实际设计中应按厂商推荐偏置电路实现稳压与旁路以保证线性与噪声性能。偏置去耦电容应靠近器件电源引脚以降低寄生。
  • 匹配与耦合:尽管器件在带宽内具有良好回波损耗(输入 18 dB,输出 24 dB),但在 PCB 实装时仍建议采用适当的输入/输出阻抗匹配网络(若需要可使用低损耗的电感、电容或微带匹配结构)以进一步优化带外抑制与带内平坦度。
  • 热管理:工作电流与输出功率会产生热量,请在 PCB 设计中提供适当散热路径(铜箔面积、热孔或散热垫)以保持器件在额定温度范围内稳定工作。
  • 稳定性与旁路:为确保在整个频率范围内稳定工作,应在电源线上增加合适的 RF 旁路与阻尼网络以防振荡。任何外接负载应考虑器件的输出回波特性,避免重反射导致的不稳定。
  • 封装与引脚:当前封装信息未明(封装:未知),设计前请务必参照 Mini-Circuits 官方 Datasheet 获取精确封装尺寸、引脚排列与焊接建议,避免造成装配或可靠性问题。

四、性能取舍与选型理由

PMA3-83LNW+ 将低噪声、较高增益与优良线性结合在一个宽带 MMIC 中。若系统要求在 400 MHz 到 8 GHz 的宽频带内实现高灵敏接收并兼顾发射/驱动能力,该器件是具有吸引力的选择。其 2.2 dB 的噪声系数与 37 dBm 的 IP3 能够在高动态范围系统中兼顾灵敏度与抗干扰能力;同时 20.5 dBm 的 P1dB 使其在中等功率输出场景下仍保持较好线性。

五、采购与使用注意

  • 型号:PMA3-83LNW+,品牌:Mini-Circuits,RoHS 合规。
  • 在设计与采购前建议下载并参考 Mini-Circuits 官方 Datasheet 获取详细的 S 参数、噪声图、偏置曲线及封装图纸。
  • 注意 ESD 防护与在焊接过程中的温度限制,遵循厂商装配与存储说明以保证良率与长期可靠性。

总结:PMA3-83LNW+ 是一款面向宽带应用、兼顾低噪声和高线性的 MMIC 放大器,适用于多种无线通信与测量系统。为实现最佳性能,请结合官方资料完成偏置、匹配与热管理设计。

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