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| 英飞凌BGA715L7 GPS低噪放大方案 |
| 作者： 时间：2008-08-14 来源:eaw |
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英飞凌(Infineon)公司的BGA715L7是 GPS低噪音放大器,工作频率1575 MHz.增益20dB,噪音为0.75dB,可达到超低噪音0.6dB.工作电压1.5V到3.3V,具有高度线性性能,可用在1575 MHz的GPS系统, 伽利略导航和GPS手机.本文介绍了BGA715L7的主要特性, 方框图以及应用电路图,应用电路板元件布局和所用元器件清单(BOM).
Silicon Germanium GPS Low Noise Amplifier BGA715L7
The BGA715L7 is a front-end low noise amplifier for Global Positioning System (GPS) applications. The LNA provides 20 dB gain, 0.75 dB noise figure and high linearity performance in the application configuration. Current consumption is as low as 3.3 mA. The BGA715L7 is based upon Infineon Technologies‘ B7HFM Silicon Germanium technology. It operates over a 1.5 V to 3.3 V supply range.
If an ultra low noise figure of 0.6 dB is required, please refer to Infineon BGA715L7 Application Note AN161.
BGA715L7主要特性:
High gain: 20 dB
Low Noise Figure: 0.75 dB
Low current consumption: 3.3 mA
Supply voltage: 1.5 V to 3.3 V
High input compression point -15.5 dBm at 1.8 V supply
High input 3rd intercept point -7 dBm at 1.8 V supply
B7HFM Silicon Germanium technology
RF output internally matched to 50 
Low external part count
1kV HBM ESD protection (including AI-pin)
Tiny TSLP-7-1 leadless package
Moisture sensitivity level: MSL 1
Pb-free (RoHS compliant) package TSLP-7-1
应用:
1575 MHz GPS, Galileo, GPS phone
图1.BGA715L7方框图
图2. BGA715L7应用电路图
图3. BGA715L7应用板布局图
BGA715L7应用板材料清单(BOM)
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