调幅接收机R1 6.2kC1 100pFVcc 15 V R2 500R3 15kR4 8kR5100Q12N2222AC2100nFC3 50nFC4 10nFL1 450nH350210C5 3.3uFC6 3nFL2 33mHQ22N2222AV3 9 V V50.5 V R6 100T2NLT_PQ_4_12013114C780nFR7 5.1kR8 15kR9 2kL3 22mHL4 171nHC8 1nFC9 33nFC10 80nFC11 47pFQ32N2222AVcc1 15 V C12470pF Key=A50%C13800nF0171612100915R10 10018 140Q42N2222AR11 25kR12 5kR13 5kR14 300R15 1kC14100nFC15100nFC16 3.3nFV212 V 242322210208D11N1199CR171kR18 400R19 200C17 33nFC18 33nFC198uFR205k Key=A50%R21100k Key=A50%V42 V 433kHz 1kHz AMXSC1ABCDGTXFC11230272619702502960模块一：本振电路1.本振电路图C180nFR1 5.1kR2 15kR4 2kL1 22mHL2 171.6nHC3 1nFC4 33nFC5 80nFC6 47pFQ12N2222AVcc 15 V C7470pF Key=A50%1034670C2800nF8R3 2k202.实验结果(1)频率计（2）瞬态分析模块二：混频电路1.混频电路电路图R101kR11 1kC9 400pFC10400pFR12 1kU1OPAMP_3T_VIRTUALA11 V/V 0 V YX3214V13 V 25MHz 3kHz AMV21.5 Vrms 24.567MHz 0 5062.实验结果及分析（1）瞬态分析模块三：中放级1.中放电路图Q12N2222AR1 25kR2 5kR3 5kR4 300R5 1kR6 5kC1100nFC2100nFC3 3.3nFV112 V V21mVrms 433kHz 0 2105746XSC1ABCDGT 802.实验结果及分析（1）示波器（2）瞬态分析模块四：检波电路1.检波电路图D11N1199CR11kR2 400R3 200C1 33nFC2 33nFC38uFR45k Key=A50%R5100k Key=A50%V12 V 433kHz 1kHz AM3246XFC1123XSC1ABExt Trig +_+_50XSC2ABExt Trig +_+_102.实验结果及分析（1）瞬态分析模块五:低放1.低放级电路图V1 15 V V210mVrms 1kHz 0 R1 9.1k C14.7uFQ12N2222C24.7uFC3 4.7uFR2 5.1kR3 2kR4 2.2kR5 5.1k12463502.实验结果及分析