Version 4
SHEET 1 1220 680
WIRE 384 -176 80 -176
WIRE 80 -96 80 -176
WIRE 384 -64 384 -96
WIRE -96 0 -304 0
WIRE 80 0 80 -16
WIRE 80 0 -32 0
WIRE 192 0 80 0
WIRE 384 0 256 0
WIRE 80 32 80 0
WIRE -304 96 -304 0
WIRE -304 224 -304 176
WIRE 80 224 80 112
WIRE 384 224 384 0
FLAG 80 224 0
FLAG 384 -64 0
FLAG 384 224 0
FLAG -304 224 0
SYMBOL res 64 -112 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 64 16 R0
SYMATTR InstName R2
SYMATTR Value 15k
SYMBOL source-V -304 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(0 1 3G)
SYMBOL source-V 384 -192 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 2
SYMBOL varactor -96 16 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D1
SYMATTR Value XSMV1234
SYMATTR Prefix X
SYMATTR Type diode
SYMBOL varactor 256 -16 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D2
SYMATTR Value XSMV1234
SYMATTR Prefix X
SYMATTR Type diode
TEXT 528 -144 Left 0 !.op
TEXT 528 -104 Left 0 !.tran 1u
TEXT 528 -56 Left 0 !;dc V1 0 15 0.5
TEXT 528 0 Left 0 !*Skyworks SMV1234 Figure1 Table2 with plastic package\n \n.subckt   XSMV1234 1 2\nLS 1 3 1.7n\nCP 3 2 1.2p\nRS 3 4 0.8\nD1 4 2 D1234\n.model D1234 D(\n+ Is=1e-14 Rs=0 N=1 CJO=8.75p M=1.1 VJ=2.3\n+ EG=1.11 XTI=3 KF=0 AF=1 FC=0.5 BV=16 IBV=1e-3\n+ ISR=0 NR=2 IKF=0 NBV=1 IBVL=0 NBVL=1 TBV1=0\n+ TNOM=27)\n* Parameter FFE=1 not supported in LTspice\n.ENDS