Phase splitter Concertina Phase Splitter

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The differential stage which will be realized in experiments is shown in the figure. V in1 R 1 R C R 2 BJT1 i C1 R EE For the biasing network, the synthesis procedure is the same of the long-tailed pair phase <strong>splitter</strong>. So dividing the circuit, knowing the V EE and V CC values and selecting the biasing voltages and currents of the components the biasing network can be defined. V CC i C2 -V EE R C BJT2 R 2 R 1 C 3 V out V in2 100kΩ C1 C A 2 100kΩ R L
To measure the two amplification you can proceed in several ways, but two measures must be made, here are some methods. A) 1 st measure V in1=-V in2=V test, in this case A d =V out1/(2V test) 2 nd measure V in1=V in2=V test, in this case A c =V out2/V test B) 1 st measure V in1= V test ,V in2=0, in this case V out1=A dV test+A cV test/2 2 nd measure V in1= 0,V in2= V test, in this case V out2= -A dV test+A cV test/2 V out2 is in phase opposition respect to V out1 so -V out2 is assumed, adding the two obtained output signals : V out1 +V out2 =A cV est A c= (V out1 +(-V out2))/V test V out1 -V out2 =2A dV test A d =(V out1 - (-V out2))/2V test C) 1 st measure V in1=V in2=V test, in this case A c =V out1/V test 2 nd measure V in1= V test ,V in2=0, in this case V out2=A dV test+A cV test/2 From which is obtained: A d =V out1 /V test -A c /2
Page 1 and 2: Phase splitter Concertina Phase Spl
Page 3 and 4: Phase splitter Long-tailed pair Pha
Page 5 and 6: Phase splitter Synthesis The circui
Page 7 and 8: v out = A d (v in1-v in2) + A c (v
Page 9: 2) V in1 = V d/2 and V in2 = -V d/2

Phase splitter Concertina Phase Splitter

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