Version 4
SHEET 1 3040 2464
WIRE 1712 2192 1632 2192
WIRE 1824 2192 1792 2192
WIRE 2000 2192 1888 2192
WIRE 2048 2192 2000 2192
WIRE 1632 2208 1632 2192
WIRE 2000 2208 2000 2192
WIRE 1632 2304 1632 2288
WIRE 2000 2320 2000 2288
FLAG 2000 2320 0
FLAG 1632 2304 0
FLAG 2048 2192 OUT
SYMBOL MISC\\XTAL 1824 2208 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName Y1
SYMATTR Value {Cs}
SYMATTR SpiceLine Rser={Rs} Lser={Ls} Cpar={Cp}
SYMBOL VOLTAGE 1632 2192 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 2
SYMATTR InstName V1
SYMATTR Value ""
SYMBOL res 1808 2176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL res 2016 2304 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 50
TEXT 1672 2104 Left 2 !.ac lin 1001 3.95e6 4.05e6
TEXT 1184 2048 Left 2 ;Crystal model from easily measurable parameters
TEXT 1136 2112 Left 2 !*serial freq\n.params fs=4e6  \n*difference between serial and // freq \n.params df=10e3  \n.params Rs=50\n.params Cp=4e-12\n.params Cs=2.0*cp*df/fs\n.params Ls=1/(4*pi*pi*fs*fs*Cs)
TEXT 1592 2392 Top 1 ;This example schematic is supplied for informational/educational purposes only.\nContributed by Dominique Szymik.