.PS # `PushPull.m4' cct_init iflatex(`ifpsfrag(,`latexcommand({\sf)') ') linewid = 1.2*linewid # Transformer as for Mixer.m4 define(`Xform21', `[ L1: inductor(to rvec_(dimen_*0.5,0),,,M) Core1E: M4Core1.end; Core2E: M4Core2.end D: (0.5 between M4Core1 and M4Core2) - L1 T: line to rvec_(dimen_/3,0); { dot(at T.c) } L2: inductor(to rvec_(L1.len,0),,,M) line from M4Core1.start to Core1E line from M4Core2.start to Core2E L3: inductor(to rvec_(-L1.len,0) with .c at T+(D.x*2,D.y*2),) ]') del = dimen_/3 up_ T1: Xform21 line left_ del from T1.L3.end; corner; ground(,,F) line left_ 2*del from T1.L3.start In: dot(,,1); { "\small RF" wid 12bp__ at In.n above } up_ Q1: mosfet(,,dBSDFQM1,E) with .G0 at T1.T+(2*dimen_+del/2,dimen_) { "\small 3N200" at last [].n above } line from T1.L2.end to (T1.L2.end,Q1.G0) then to Q1.G0 Q2: mosfet(,,dBSDFQM1,E) with .G0 at (Q1.G0.x,T1.T.y-dimen_) { "\small 3N200" at last [].n above } line from T1.L1.start to (T1.L1.start,Q2.G0) then to Q2.G0 resistor(right_ dimen_ from T1.T); llabel(,\SI{330}{\Omega}); Tx:dot { line right_ del*3/2; corner; ground(,,F) } dot(at (Tx,Q1.G0)) capacitor(down_ to Tx,C); llabel(\SI{5.6}{pF}) dot(at (Tx,Q2.G0)) capacitor(up_ to Tx,C); rlabel(\SI{5.6}{pF}) for_(1,2,1, `dot(at Q`'m4x.S+(dimen_+del/2,0)) { resistor(down_ dimen_); G1:Here; { "$120$" at last [].nw rjust } rlabel(,\Omega\;); dot; ground(,,F) } line from Q`'m4x.S to (Here.x+dimen_*3/4,Q`'m4x.S.y); corner capacitor(down_ to (Here,G1),C); rlabel(\raisebox{2pt}{\num{1000}},\si{pF}); corner line left_ 2*dimen_*3/4; corner TG: dot(at (Here,Q`'m4x.S)) capacitor(down_ to (Here,G1),C); rlabel(,,\SI{0.01}{\micro F}) ') R: dot(at (Here.x+dimen_*2,(Q1.D.y+Q2.D.y)/2)) dot(at (R,Q1.D)); capacitor(down_ to R,C); llabel(\SI{20}{pF}) dot(at (R,Q2.D)); capacitor(up_ to R,C); llabel(\SI{20}{pF}) line right_ del*3/2 from R then down_ R.y-(Q1.S.y-dimen_); ground(,,F) Vc: dot(at (R+(dimen_,0),Q1.ne),,1); { "$+V_{\hbox{c}}$" rjust at Vc.w } dot(at (Vc,R)) inductor(right_ dimen_,); llabel(,\SI{1}{\micro\henry}) down_ T2: Xform21 with .T at Here arrow from T2.L2 to T2.L3 chop -dimen_/4 line right_ del from T2.L3.start; corner capacitor(down_ dimen_,C); llabel(\SI{1000}{pF}); ground(,T,F) line right_ 2*del from T2.L3.end Out: dot(,,1); { "\small IF" wid 12bp__ at Out.n above }; move right_ 0.3 line from T2.L1.start to (T2.L1,Q1.D) then to Q1.D line from T2.L2.end to (T2.L2.end,Q2.D) then to Q2.D line from Vc to (Vc,Q2.S) chop dotrad_/2 chop 0; dot { line right_ del*2; corner capacitor(down_ dimen_,C); llabel(,,\SI{1000}{pF}); ground(,,F) } reversed(`inductor',down_ dimen_,); rlabel(,\SI{1}{\micro\henry}) line down_ dimen_/2 TL: dot(at (Q1.G1.x-del/2,Here.y)) up_ Q3: bi_tr(,R,,E) with .C at (TG.x,TL.y-dimen_*2/3) resistor(right_ from TL to (Q3.C,TL)); llabel(,\SI{82}{\kilo\Omega}) line to (Vc,Here); dot resistor(down_ to (Here,Q3.B)); rlabel(,\SI{8.2}{\kilo\Omega}); dot dot(at Q3.B+(del,0)) line up_ (TL.y+Q3.C.y)/2 - Here.y+del/4 then left_ Here.x-TL.x reversed(`capacitor',left_ dimen_,C); llabel(,\SI{1500}{pF}) Osc: dot(,,1); { "\small Osc" above at Osc.n } line from Q3.B to (Vc,Q3.B) line from Q3.C to (Q3.C,TL); dot dot(at Q3.C+(0,del/2)) capacitor(left_ to (TL,Here),C); llabel(,\SI{1500}{pF}); dot line down_ del/2 from Q3.E; dot { resistor(down_ dimen_*3/4); rlabel(,\SI{820}{\Omega}) G: Here; ground(,T,F) } line right_ dimen_; corner capacitor(down_ to (Here,G),C); llabel(,\SI{1000}{pF}) ground(,T,F) ground(at (TL,G),T,F) resistor(up_ dimen_); llabel(,\SI{12}{\kilo\Omega}) line to (Here,Q1.G1) then to Q1.G1 line from Q2.G1 to (TL,Q2.G1); dot ground(at (Vc,G),T,F) resistor(up_ dimen_); rlabel(,\SI{5.6}{\kilo\Omega}); line to (Here,Q3.B) iflatex(`ifpsfrag(,`latexcommand(})')') .PE