Version 4
SHEET 1 3572 2464
WIRE 1856 1744 1856 1728
WIRE 2096 1776 2064 1776
WIRE 2208 1776 2176 1776
WIRE 2304 1776 2208 1776
WIRE 2416 1776 2304 1776
WIRE 2208 1792 2208 1776
WIRE 1856 1840 1856 1824
WIRE 2064 1840 2064 1776
WIRE 2208 1872 2208 1856
WIRE 2000 1888 1968 1888
WIRE 2064 1952 2064 1920
WIRE 1968 2032 1968 1888
WIRE 2096 2032 1968 2032
WIRE 2304 2032 2304 1776
WIRE 2304 2032 2176 2032
WIRE 2304 2048 2304 2032
WIRE 1968 2160 1968 2032
WIRE 2096 2160 1968 2160
WIRE 2304 2160 2304 2128
WIRE 2304 2160 2160 2160
WIRE 1968 2176 1968 2160
WIRE 2304 2176 2304 2160
WIRE 1968 2272 1968 2240
WIRE 2304 2272 2304 2240
FLAG 2304 2272 0
FLAG 1968 2272 0
FLAG 2416 1776 OUT
FLAG 2064 1952 0
FLAG 2000 1888 1
FLAG 2208 1872 0
FLAG 1856 1840 0
FLAG 1856 1728 VCC
SYMBOL MISC\\XTAL 2096 2176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
WINDOW 39 -135 90 VBottom 2
SYMATTR InstName Y1
SYMATTR Value {C}
SYMATTR SpiceLine Rser=50k Lser={L} Rpar=1e20 Cpar=1.35p
SYMBOL Misc\\EuropeanResistor 2192 2016 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10MEG
SYMBOL cap 2288 2176 R0
SYMATTR InstName C1
SYMATTR Value 30p
SYMBOL Misc\\EuropeanResistor 2320 2144 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value 300K
SYMBOL cap 1952 2176 R0
SYMATTR InstName C2
SYMATTR Value 30p
SYMBOL res 2080 1792 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL bv 2064 1824 R0
SYMATTR InstName B1
SYMATTR Value V=V(VCC)*(0.5-0.5*tanh((V(1)-V(VCC)/2)*4))
SYMBOL cap 2192 1792 R0
SYMATTR InstName C3
SYMATTR Value 10p
SYMBOL voltage 1856 1728 R0
SYMATTR InstName V1
SYMATTR Value 5
TEXT 1840 1592 Left 2 !.tran 0 3000m 0 1u startup
TEXT 1840 1632 Left 2 !.options method=trap
TEXT 2208 1568 Left 2 !.param R=50k f0=32768 Q=70000\n.param w=2*pi*f0\n.param C = 1/(w*w*L)\n.param L = R*Q/w
TEXT 1840 1560 Left 2 !.op
TEXT 2352 1872 Left 2 ;v=VCC*0.5*4=10
TEXT 1896 1496 Left 2 ;Crystal power dissipation 2.6uW <--> Datasheet max. 1uW
TEXT 1832 2384 Left 2 ;c=1.38772097422481e-015 rser=50k lser=16999.581934254 rpar=1e20 cpar=1.35p
LINE Normal 2128 2304 2128 2208 2
RECTANGLE Normal 2464 2352 1904 2304 2