恩智浦半導(dǎo)體 NXP Semiconductors N.V. 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title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS" title="GPS">GPS信號的線性度,、噪聲系數(shù)以及GPS（包括GLONASS和伽利略衛(wèi)星定位系統(tǒng)）的接收效果，同時(shí)繼續(xù)保持恩智浦在此類產(chǎn)品市場上的體積最小,。恩智浦BGU700x系列作為業(yè)界首款可以動態(tài)抑制手機(jī),、藍(lán)牙及WLAN過強(qiáng)發(fā)射信號的GPS LNA產(chǎn)品,，保證了微弱的GPS信號能夠得到最佳的接收效果，在-40至 -20 dBm干擾環(huán)境下能將信號提高10 dB或者提供更好的IP3,，同時(shí)將噪聲系數(shù)控制在1 dB以下,。BGU700x LNA產(chǎn)品僅需兩個(gè)外部元件，節(jié)省50%的PCB面積和10%的器件成本,。
　
　　恩智浦半導(dǎo)體產(chǎn)品市場經(jīng)理Duco Das表示,，“消費(fèi)者對于GPS接收效果的要求與日俱增，這就使得GPS接收效果朝著首次定位時(shí)間更短,，定位精度更高的方向推進(jìn),。而我們最新的LNA產(chǎn)品能提供完整可靠的IC解決方案，全面提高GPS性能,，阻止其他干擾信號進(jìn)入器件,。LNA可以根據(jù)信號輸入狀況動態(tài)調(diào)節(jié)設(shè)備的接收，傳輸更多所需的頻率信號,，同時(shí)最大可能地保持GPS信號處于連通狀態(tài),。對于尋求分立解決方案改善GPS接收的設(shè)計(jì)人員來說，我們的新型LNA系列無疑是理想的首選,。”
　　
　　GPS 作為標(biāo)準(zhǔn)功能配置被廣泛應(yīng)用于各種消費(fèi)產(chǎn)品,，如個(gè)人導(dǎo)航設(shè)備、數(shù)字?jǐn)z像機(jī),、手表,、電動汽車等。GPS信號的功率水平相對較弱,，低于-155 dBm的底噪。很多消費(fèi)產(chǎn)品,，特別是智能手機(jī),，其中的藍(lán)牙、WLAN及蜂窩單元等強(qiáng)發(fā)射器會驅(qū)使GPS LNA進(jìn)入飽和狀態(tài),。GPS LNA在飽和狀態(tài)下,，增益會降低，結(jié)果造成GPS接收不良,；同時(shí)在發(fā)射機(jī)信號中還會形成互調(diào)與諧波,，抑制微弱信號，導(dǎo)致GPS接收失靈,。
　　
　　恩智浦BGU700x/BGU8007系列采用自適應(yīng)偏置技術(shù),，能夠?qū)崟r(shí)檢測到任何干擾源的輸出信號,，通過臨時(shí)增大電流對GPS信號進(jìn)行補(bǔ)償。從而始終保持最佳的GPS信號接收狀態(tài),。BGU700x/BGU8007系列中的每款器件只需一個(gè)輸入匹配電感和一個(gè)供電去耦電容,。這種設(shè)計(jì)非常緊湊，而且節(jié)省了大量材料,。例如,，BGU7005采用1.45 x 1 mm封裝，應(yīng)用面積僅需4.53 mm2,。與9.06 mm2應(yīng)用面積的方案相比,，減少了50%。新款LNA還提供極小型6管腳封裝,，可減小面積,、降低成本并且改善接收效果，適用于有源天線或貼片天線系統(tǒng),。
　
　　主要特性：
　　•低噪聲：0.75 dB
　　•系統(tǒng)優(yōu)化增益：16.5或19 dB
　　•符合AEC-Q100 標(biāo)準(zhǔn)（BGU7004,、BGU7008），在惡劣條件下保證最高可靠性
　　•小型,、6管腳無引腳封裝1.45 x 1.0 x 0.5 mm
　　
上市時(shí)間
　　新型BGU700x/BGU8007 LNA目前已上市,。
　　
鏈接
　　•下載NXP GPS LNA BGU700x 產(chǎn)品手冊： http://www.nxp.com/documents/leaflet/75017194.pdf
　　•BGU7004
　　•BGU7005
　　•BGU7007
　　•BGU7008
　　•BGU8007
　　•視頻：恩智浦GPS與FM低噪聲放大器：最小體積提供最佳接收效果http://v.youku.com/v_show/id_XMzM0MjQ2NTgw.html