MAX2430

低电压、硅工艺RF功放前置驱动器


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说明

The MAX2430 is a versatile, silicon RF power amplifier that operates directly from a 3V to 5.5V supply, making it suitable for 3-cell NiCd or 1-cell lithium-ion battery applications. It is designed for use in the 800MHz to 1000MHz frequency range and, at 915MHz, can produce +21dBm (125mW) of output power with greater than 32dB of gain at VCC = 3.6V.

A unique shutdown function provides an off supply current of typically less than 1µA to save power during "idle slots" in time-division multiple-access (TDMA) transmissions. An external capacitor sets the RF output power envelope ramp time. External power control is also possible over a 15dB range. The amplifier's input is matched on-chip to 50Ω. The output is an open collector that is easily matched to a 50Ω load with few external components.

The MAX2430 is ideal as a driver amplifier for portable and mobile telephone systems, or as a complete power amplifier for other low-cost applications, such as those in the 915MHz spread-spectrum ISM band. It is fabricated with Maxim's high-frequency bipolar transistor process and is available in a thermally enhanced, 16-pin narrow SO and miniature 16-pin PwrQSOP packages with heat slug.

关键特性

  • Operates Over the 800MHz to 1000MHz Frequency Range
  • Delivers 125mW at 915MHz from +3.6V Supply (100mW typical from +3.0V supply)
  • Operates Directly from 3-Cell NiCd or 1-Cell Lithium-Ion Battery
  • Over 32dB Power Gain
  • RF Power Envelope Ramping is Programmable with One External Capacitor
  • Input Matched to 50Ω (VSWR < 2:1)
  • 15dB Output Power Control Range
  • 1µA Typical Shutdown Current

应用

  • 915MHz ISM波段应用
  • AM与FM模拟发送器
  • 蜂窝电话
  • 数字无绳电话
  • 双向寻呼
  • 无线局域网(WLAN)

技术资料

设计指南 5100 RF和混合信号PCB的一般布局指南
应用笔记 335 Maxim无线/射频功率放大器选择指南

质量和环境数据

申请可靠性报告: MAX2430 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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