Version 4
SHEET 1 1492 680
WIRE -384 -144 -480 -144
WIRE -160 -144 -384 -144
WIRE 752 -144 -160 -144
WIRE 880 -144 752 -144
WIRE -160 -128 -160 -144
WIRE 880 -128 880 -144
WIRE -384 -112 -384 -144
WIRE 752 -96 752 -144
WIRE -384 -32 -384 -48
WIRE 880 -32 880 -48
WIRE -160 -16 -160 -48
WIRE -160 -16 -224 -16
WIRE 0 -16 -48 -16
WIRE 240 -16 80 -16
WIRE 368 -16 240 -16
WIRE 448 -16 368 -16
WIRE 480 -16 448 -16
WIRE 576 -16 544 -16
WIRE 656 -16 656 -32
WIRE -160 0 -160 -16
WIRE 240 0 240 -16
WIRE 368 0 368 -16
WIRE -480 48 -480 -144
WIRE -224 48 -224 -16
WIRE 240 80 240 64
WIRE 368 80 368 64
WIRE 368 80 240 80
WIRE 448 80 448 -16
WIRE 480 80 448 80
WIRE 576 80 576 -16
WIRE 576 80 544 80
WIRE 656 80 656 64
WIRE 656 80 576 80
WIRE 784 80 656 80
WIRE 880 80 880 48
WIRE 880 80 848 80
WIRE 944 80 880 80
WIRE -160 96 -160 80
WIRE -48 96 -48 -16
WIRE -48 96 -160 96
WIRE 368 96 368 80
WIRE -160 112 -160 96
WIRE 944 112 944 80
WIRE -272 128 -320 128
WIRE 880 160 880 80
WIRE -320 176 -320 128
WIRE 944 192 944 176
WIRE -224 208 -224 144
WIRE -160 208 -160 192
WIRE -160 208 -224 208
WIRE -48 208 -48 96
WIRE 0 208 -48 208
WIRE 128 208 80 208
WIRE 176 208 128 208
WIRE 288 208 240 208
WIRE 368 208 368 176
WIRE 368 208 288 208
WIRE 624 208 368 208
WIRE 752 208 752 -16
WIRE 752 208 688 208
WIRE 816 208 752 208
WIRE -160 240 -160 208
WIRE -48 240 -48 208
WIRE 128 240 128 208
WIRE 288 240 288 208
WIRE 368 240 368 208
WIRE -480 336 -480 128
WIRE -320 336 -320 256
WIRE -320 336 -480 336
WIRE -160 336 -160 320
WIRE -160 336 -320 336
WIRE -48 336 -48 304
WIRE -48 336 -160 336
WIRE 128 336 128 304
WIRE 128 336 -48 336
WIRE 288 336 288 320
WIRE 288 336 128 336
WIRE 368 336 368 304
WIRE 368 336 288 336
WIRE 880 336 880 256
WIRE 880 336 368 336
WIRE -480 352 -480 336
FLAG -480 352 0
FLAG -384 -32 0
FLAG 656 -32 0
FLAG 944 192 0
SYMBOL voltage -480 32 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 35 37 Left 2
WINDOW 3 37 71 Left 2
SYMATTR InstName V1
SYMATTR Value 8.5V
SYMBOL res 736 -112 R0
SYMATTR InstName R1
SYMATTR Value 150k
SYMBOL cap 928 176 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value 180p
SYMBOL res 864 -144 R0
SYMATTR InstName R2
SYMATTR Value 470
SYMBOL npn 816 160 R0
WINDOW 0 -34 79 Left 2
WINDOW 3 -34 114 Left 2
SYMATTR InstName Q2
SYMATTR Value BFR93A
SYMBOL Misc\\xtal 384 0 M0
WINDOW 0 26 61 Left 2
WINDOW 3 22 -5 Left 2
SYMATTR InstName X1
SYMATTR Value 16.21f
SYMATTR SpiceLine Rser=40 Lser=7.97615m Cpar=4p
SYMBOL cap 352 240 R0
SYMATTR InstName C_freq
SYMATTR Value {c_var}
SYMBOL Misc\\xtal 256 0 M0
WINDOW 0 31 66 Left 2
WINDOW 3 22 -3 Left 2
SYMATTR InstName X2
SYMATTR Value 16.21f
SYMATTR SpiceLine Rser=40 Lser=7.97615m Cpar=4p
SYMBOL ind 864 -48 R0
SYMATTR InstName L1
SYMATTR Value 15µ
SYMBOL cap -400 -112 R0
SYMATTR InstName C4
SYMATTR Value 22n
SYMBOL cap 688 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 22p
SYMBOL varactor 144 304 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BB122
SYMATTR Type diode
SYMBOL cap 848 64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res 96 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 220k
SYMBOL cap -64 240 R0
SYMATTR InstName C5
SYMATTR Value 1n
SYMBOL voltage -320 160 M0
WINDOW 3 -26 104 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value {switch}
SYMBOL varactor 544 64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value BB122
SYMATTR Type diode
SYMBOL res 640 -32 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res 96 -32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 220k
SYMBOL varactor 240 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMATTR Value BB122
SYMATTR Type diode
SYMBOL res -176 -144 R0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -176 -16 R0
SYMATTR InstName P1a
SYMATTR Value 4k
SYMBOL res -176 224 R0
SYMATTR InstName R8
SYMATTR Value 1k
SYMBOL res -176 96 R0
SYMATTR InstName P1b
SYMATTR Value 6k
SYMBOL nmos -272 48 R0
WINDOW 0 -39 24 Left 2
WINDOW 3 -57 -17 Left 2
SYMATTR InstName M1
SYMATTR Value BSS123
SYMBOL res 304 224 M0
SYMATTR InstName R10
SYMATTR Value 220k
SYMBOL varactor 544 -32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D4
SYMATTR Value BB122
SYMATTR Type diode
SYMBOL voltage 368 80 R0
WINDOW 3 -98 106 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 1k 1n 1n 1n 30n 1)
TEXT -56 -120 Left 2 !.tran 0 300u 1u 500p
TEXT -416 360 Left 2 !.step param switch list 0V 8V
TEXT 264 360 Left 2 !.step param c_var list 100p 3p