Maxim MAX2769通用GPS接收器解决方案
Maxim公司的MAX2769是通用GPS接收器,在单片包括了GPS,GLONASS和Galileo导航卫星系统.这种单转换低IF GNSS接收器能为各种消费类应用和移动手机提供高性能的定位功能.MAX2769采用先进的低功耗SiGeBiCMOS工艺技术,提供完整的接收链,包括双输入LNA和混频器,镜频抑制滤波器,PGA,VCO,分数N频率合成器,晶振和多比特ADC,级联噪音1.4dB,电源电压2.7V-3.3V,主要用在定位功能手机,PND,PMP,PDA,汽车导航系统,远程信息处理,娱乐/航海导航/航天,软件GPS,数码相机和摄像机以及平板电脑等.本文介绍了MAX2769主要特性,框图,应用电路及所用元件表,评估板MAX2769 EVK主要特性,电路图,材料清单和PCB设计图.
The MAX2769 is the industry’s first global navigationsatellite system (GNSS) receiver covering GPS,GLONASS, and Galileo navigation satellite systems on asingle chip. This single-conversion, low-IF GNSS receiveris designed to provide high performance for a wide rangeof consumer applications, including mobile handsets.
Designed on Maxim’s advanced, low-power SiGeBiCMOS process technology, the MAX2769 offers thehighest performance and integration at a low cost.
Incorporated on the chip is the complete receiverchain, including a dual-input LNA and mixer, followedby the image-rejected filter, PGA, VCO, fractional-Nfrequency synthesizer, crystal oscillator, and a multibitADC. The total cascaded noise figure of this receiver is
as low as 1.4dB.
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