23 lines
497 B
Plaintext
23 lines
497 B
Plaintext
Colpitt's Oscillator Circuit
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* Colpitt is an harmonic oscillator (LC based) which use
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* a capacitive partition of resonator to feed the single
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* active device.
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* Predicted frequency is about 3.30435e+06 Hz.
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* Models:
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.model qnl npn(level=1 bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)
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r1 1 0 1
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q1 2 1 3 qnl
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vcc 4 0 5
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rl 4 2 750
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c1 2 3 500p
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c2 4 3 4500p
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l1 4 2 5uH
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re 3 6 4.65k
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vee 6 0 dc -10 pwl 0 0 1e-9 -10
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*.tran 30n 12u
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.pss 3.1e6 500e-6 3 256 10 50 5e-3
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