Avago MGA-231T6 GPS低噪音(LNA)放大方案

Avago 公司的MGA-231T6 是(0.9-3.5)GHz GPS//ISM/WiMAX低噪音放大器(LNA),采用GaAs 增强模式pHEMT工艺,具有高增益.低噪音和高线性特性,工作定压可低至1.8V,主要用作GPS, WLAN 和WIMAX低噪音放大器.本文介绍了MGA-231T6主要特性, 演示板,应用电路和所用元件表以及S参数测量参考平面.

Avago Technologies’ MGA-231T6 is a low-noise amplifier (LNA) designed for GPS/ISM/Wimax applications in the (0.9-3.5)GHz frequency range. The LNA uses Avago Tech­nologies’ proprietary GaAs Enhancement-mode pHEMT process to achieve high gain with very low noise figure and high linearity. Noise figure distribution is very tightly controlled. A CMOS-compatible shutdown pin is included either for turning the LNA on/off or for current adjust­ment.

The low noise figure and high gain, coupled with low cur­rent consumption make it suitable for use in critical low-power GPS applications or during low-battery situations.
 
MGA-231T6主要特性:

• Very Low Noise Figure

• High Gain and Linearity

• Low External Component Count

• Low Shutdown Current

• CMOS compatible shutdown pin (SD) current @ Vsd= 1.8V : 0.11mA

• Useable down to 1.8V supply
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