Version 4
SHEET 1 880 680
WIRE -240 -384 -288 -384
WIRE -192 -384 -240 -384
WIRE -128 -384 -192 -384
WIRE -16 -384 -48 -384
WIRE -288 -368 -288 -384
WIRE -16 -368 -16 -384
WIRE -192 -320 -192 -384
WIRE -288 -288 -288 -304
WIRE -16 -272 -16 -288
WIRE -192 -240 -192 -320
WIRE -176 -240 -192 -240
WIRE -240 -224 -288 -224
WIRE -176 -192 -176 -240
WIRE -176 -192 -192 -192
WIRE -576 -176 -576 -208
WIRE -496 -176 -496 -208
WIRE -288 -144 -288 -224
WIRE -288 -144 -400 -144
WIRE -192 -128 -192 -144
WIRE -128 -128 -192 -128
WIRE -80 -128 -128 -128
WIRE -32 -128 -80 -128
WIRE -192 -112 -192 -128
WIRE -400 -96 -400 -144
WIRE -576 -80 -576 -112
WIRE -496 -80 -496 -112
WIRE -496 -80 -576 -80
WIRE -448 -80 -496 -80
WIRE -176 -64 -192 -64
WIRE -288 -32 -288 -144
WIRE -240 -32 -288 -32
WIRE -176 -16 -176 -64
WIRE -176 -16 -192 -16
WIRE -448 0 -448 -32
WIRE -400 0 -400 -16
WIRE -192 0 -192 -16
WIRE -496 80 -496 -80
WIRE -416 80 -496 80
WIRE -320 80 -416 80
WIRE -240 80 -320 80
WIRE -80 80 -80 -128
WIRE -80 80 -160 80
WIRE -80 112 -80 80
WIRE -320 224 -320 80
WIRE -240 224 -320 224
WIRE -80 224 -80 192
WIRE -80 224 -176 224
WIRE -320 272 -320 224
WIRE -80 272 -80 224
WIRE -528 304 -528 288
WIRE -320 368 -320 336
WIRE -208 368 -320 368
WIRE -80 368 -80 336
WIRE -80 368 -208 368
WIRE -528 400 -528 384
WIRE -208 400 -208 368
FLAG -208 400 0
FLAG -192 0 0
FLAG -16 -272 0
FLAG -400 0 0
FLAG -448 0 0
FLAG -32 -128 out
IOPIN -32 -128 Out
FLAG -496 -208 out
FLAG -576 -208 0
FLAG -288 -288 0
FLAG -416 80 in
FLAG -528 400 0
FLAG -528 288 in
DATAFLAG -192 -320 "round(Is(M1)*1e6)/1e6"
DATAFLAG -128 -128 "round($*1k)/1k"
DATAFLAG -240 -384 "round($*1k)/1k"
SYMBOL Misc\\xtal -176 208 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value {C}
SYMATTR SpiceLine Rser=50k Lser={L} Rpar=1e20 Cpar=1.35p
SYMBOL cap -336 272 R0
WINDOW 3 34 41 Left 0
SYMATTR Value 22p
SYMATTR InstName C2
SYMBOL cap -96 272 R0
SYMATTR InstName C3
SYMATTR Value 22p
SYMBOL res -96 96 R0
WINDOW 3 36 68 Left 0
SYMATTR Value 220k
SYMATTR InstName R1
SYMBOL res -144 64 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 10meg
SYMBOL voltage -16 -384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL pmos -240 -144 M180
WINDOW 3 69 67 Left 0
SYMATTR Value BSS84
SYMATTR InstName M1
SYMBOL nmos -240 -112 R0
WINDOW 3 70 73 Left 0
SYMATTR Value BSS123
SYMATTR InstName M2
SYMBOL e -400 -112 R0
SYMATTR InstName E1
SYMATTR Value 1
SYMBOL cap -512 -176 R0
SYMATTR InstName Cgd
SYMATTR Value 1p
SYMBOL cap -592 -176 R0
SYMATTR InstName Cgs
SYMATTR Value 2p
SYMBOL res -144 -368 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap -304 -368 R0
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL current -528 304 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value PWL(0 0 1u 1u 2u 0)
TEXT -592 -568 Left 0 !.param R=50k f0=32768 Q=70000\n.param w=2*pi*f0\n.param C = 1/(w*Q*R)\n.param L = C*(Q*R)**2
TEXT -592 -440 Left 0 !.tran 0 2 0 1u
TEXT -560 232 Left 0 ;kickstart
TEXT -592 -264 Left 0 ;low capacitance buffer
RECTANGLE Normal -336 48 -624 -288