*Colpitts Oscillator C1 102 0 0.033u L1 102 103 0.47 C2 103 0 0.033u IS 0 104 PWL(0mS 0 .1mS 1m .2mS 1m .3mS 0 1mS 0 ) X2 103 104 102 AMP .SUBCKT AMP 13 24 41 R11 11 12 1 X1 13 12 11 OPAMP R21 11 22 1k R24 24 22 1k R22 22 21 0.7k X2 0 22 21 OPAMP R31 21 32 1k R32 32 34 0.9k R34 34 31 0.1k D31 34 31 Diode D32 31 34 Diode X3 0 32 31 OPAMP R41 41 42 1 X4 31 42 41 OPAMP .ENDS .SUBCKT OPAMP 1 2 6 R_in 1 2 10MEG E_gain 3 0 1 2 100k R_p1 3 4 1k C_p1 4 0 1.59p E_buffer 5 0 4 0 1 R_out 5 6 10 .ENDS .MODEL Diode D () .TRAN .1m 5m 0 .PLOT TRAN v(103) v(102) v(104) .END .
Colpitts Oscillator
1/sqrt ( L1 ( C1 // C2 ) )
A > C2 / C1
SEE ALSO
