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自(zi)偏置低噪聲(sheng)放(fang)大(da)(da)器(qi)主(zhu)要針(zhen)對目前(qian)自(zi)偏置放(fang)大(da)(da)器(qi)的噪音和(he)增益頻帶寬度無法滿足各種的問題。主(zhu)要包括兩級(ji)功率(lv)放(fang)大(da)(da)電(dian)(dian)路(lu)(lu)，第一級(ji)功率(lv)放(fang)大(da)(da)電(dian)(dian)路(lu)(lu)由功率(lv)電(dian)(dian)感L2組成、NMOS管(guan)M1、PMOS管(guan)M2、負反饋電(dian)(dian)阻(zu)值R1與(yu)負載電(dian)(dian)源電(dian)(dian)路(lu)(lu)Z1相接；第(di)一級功(gong)率(lv)放大電(dian)(dian)(dian)路的輸出(chu)(chu)端連接第(di)二(er)(er)級功(gong)率(lv)放大電(dian)(dian)(dian)路，第(di)二(er)(er)級功(gong)率(lv)放大電(dian)(dian)(dian)路由共源(yuan)NMOS管(guan)(guan)M3和匹配電(dian)(dian)(dian)阻(zu)(zu)R2組成。該M1管(guan)(guan)、M2管(guan)(guan)和M3管(guan)(guan)用(yong)(yong)作(zuo)(zuo)提(ti)供電(dian)(dian)(dian)壓增(zeng)益(yi)，負(fu)反饋電(dian)(dian)(dian)阻(zu)(zu)值(zhi)R1和功(gong)率(lv)電(dian)(dian)(dian)感L2用(yong)(yong)作(zuo)(zuo)輸入特性阻(zu)(zu)抗(kang)，負(fu)載電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)路Z1拓展增(zeng)益(yi)頻帶寬(kuan)度(du)，匹配電(dian)(dian)(dian)阻(zu)(zu)R2用(yong)(yong)作(zuo)(zuo)輸出(chu)(chu)特性阻(zu)(zu)抗(kang)。

CHA3666-99F是款兩(liang)級自(zi)偏置寬(kuan)帶(dai)單芯(xin)片低噪聲放大器。

CHA3666-99F采用(yong)標(biao)準PHEMT工藝技(ji)術：25um柵極(ji)長度、穿過襯底的通孔、空氣橋(qiao)和電子(zi)束(shu)柵極(ji)光(guang)刻技(ji)術。

首要功能

寬帶性能：6-17GHZ

1.8db噪聲系(xi)數

26dbm三(san)階(jie)截距(ju)點

1db壓縮時的17dbm功率(lv)

21db增益值

低直流變壓器電顯卡功(gong)耗(hao)

直流電(dian)偏(pian)置電(dian)壓：Vd=4.0伏@ld=80MA

封裝(zhuang)尺寸(cun)1.47x1.47x0.1mm