WMSIC Electronic Components

Mini-Circuits PHA-202+

ModelPHA-202+
PackageDFN-8(4.9x6)
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 PHA-202+
Type
MINI-CIRCUITS
Unit
Electronic Component
Minimum package
1000 圆盘

Technical parameters

IP3
46.1dBm
P1dB
30.4dBm
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MINI-CIRCUITS
Electronic Component
PHA-202+
Electronic Component
12.7dB
Electronic Component
1
Package
DFN-8(4.9x6)
Electronic Component
RFAmplifier
Electronic Component
0.4g
Frequency
30MHz~2.7GHz
Electronic Component
1
Features
Linear
Electronic Component
BM0264800141
Noise Figure
5.4dB

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

PHA-202+ 产品概述

一、概述

PHA-202+ 是一款面向宽带射频前端与中级驱动级的 MMIC 放大器,采用表面贴装形式(Surface Mount)封装。器件覆盖 30 MHz 到 2.7 GHz 的宽频带,集成了线性化设计以提升大信号线性度和互调性能。该器件由 Mini-Circuits 提供,设计用于需要高增益、良好输入/输出匹配和较高线性度的系统,例如无线基站前端、陆地移动通信、测试测量设备与宽带收发系统。

二、主要性能指标

  • 频率范围:30 MHz ~ 2.7 GHz,适用于 HF 到 UHF 及部分 L-band 应用。
  • 增益:12.7 dB(典型),为中功率放大器或驱动级提供稳定增益。
  • 噪声系数:5.4 dB,适合要求中等噪声性能的系统(非低噪声前端,但可用作中/后级放大)。
  • 工作电压/电流:11 V / 350 mA,器件直流功耗约为 3.85 W(11 V × 0.35 A),需要考虑热设计与散热路径。
  • P1dB(输出 1 dB 压缩点):30.4 dBm,表明在接近瓦级输出下仍维持良好线性度。
  • 输出第三阶互调点(IP3):46.1 dBm,结合 P1dB 表现,可在多载波或强干扰环境中降低互调产物,适合线性要求高的发射或中功率级。
  • 输入回波损耗(S11):28.6 dB(优良),有利于减少源侧反射并简化前端匹配设计。
  • 输出回波损耗(S22):22.5 dB(良好),便于与后级或负载匹配。
  • 工作温度范围:-40 ℃ ~ +85 ℃,适应工业与通信级应用环境。
  • 功能特性:线性化设计(提升大信号线性度及动态范围)。

三、电气及热管理建议

  • 偏置与去耦:器件在 11 V、350 mA 下工作,应为偏置引脚提供低阻抗电源并在接近器件处放置适当的高频旁路电容(例如 0.1 µF 与 10 nF 并联)以抑制电源噪声与寄生振荡。
  • 功耗与散热:典型直流功耗约 3.85 W,PCB 热设计不可忽视。建议在放大器下方或靠近的铜泄热区(thermal pad)增加散热铜箔和多层过孔,以改善导热到内层和散热片。若封装信息或热阻未知,应按照 4–5 W 的散热预算进行布局验证。
  • 输入/输出耦合:尽管 S11/S22 性能优良,仍建议在器件输入/输出端使用 DC 阻断电容(若系统需要)和适当的滤波/隔离网络,以保证稳定性并控制频带外发射。
  • 稳定性:线性化设计与良好匹配有助于稳定性,但在初期样件验证中应测试增益稳定裕度(K 因子、环路增益)并根据需要在回路中加入小量衰减或阻尼元件。

四、典型应用场景

  • 无线通信基站的中级功率放大器或驱动级。
  • 宽带收发系统中的中频/射频放大模块。
  • 测试与测量设备(射频信号源、信号链放大)。
  • 卫星地面站接收/发射预驱动器(在频段覆盖范围内)。
  • 需要较高线性度和动态范围的多载波合成与分配系统。

五、设计与封装注意事项

  • 封装信息:当前提供资料中封装类型未知。在 PCB 集成前,应向厂商或数据手册确认封装尺寸、引脚排列、热焊盘尺寸及最大焊接温度曲线(回流曲线)。
  • 封装与布局:建议参考厂商推荐的 PCB footprint 与过孔布局,确保足够的散热通道及电源去耦安置位置。
  • 测试验证:在样机阶段验证增益平坦性、噪声系数、P1dB 与 IP3 在全频带与不同温度、供电容差下的变化。对高线性应用,需进行多载波互调测试以确保满足系统指标。
  • ESD 与浪涌保护:若用于户外或接入复杂天线系统,建议在输入端考虑合适的瞬态抑制与防静电措施。

六、总结

PHA-202+ 以宽频带(30 MHz–2.7 GHz)、中等增益(12.7 dB)、良好匹配(S11 28.6 dB、S22 22.5 dB)与出色线性指标(P1dB 30.4 dBm、IP3 46.1 dBm)为主要特征,适用于需要中级放大与高线性度的射频系统。其 11 V/350 mA 的工作点和近 4 W 的功耗要求在设计时重视散热与电源管理。由于封装细节未给出,建议在最终设计前向 Mini-Circuits 获取完整的数据手册与封装图纸,并在样机阶段完成热、线性与互调等关键验证。

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