Version 4 SHEET 1 1716 1620 WIRE -176 880 -400 880 WIRE 32 880 -176 880 WIRE 1376 896 1296 896 WIRE 1488 896 1376 896 WIRE 1600 896 1552 896 WIRE -400 912 -400 880 WIRE 368 912 176 912 WIRE 848 912 432 912 WIRE 1296 912 1296 896 WIRE 1056 928 976 928 WIRE 1120 928 1056 928 WIRE 1248 928 1120 928 WIRE 432 944 432 912 WIRE 848 944 816 944 WIRE 368 960 368 912 WIRE 384 960 368 960 WIRE 1120 976 1120 928 WIRE 1248 976 1232 976 WIRE 384 1008 368 1008 WIRE 1232 1008 1232 976 WIRE 1296 1008 1296 992 WIRE -400 1024 -400 992 WIRE 368 1040 368 1008 WIRE 432 1040 432 1024 WIRE 1120 1120 1120 1056 WIRE 1056 1184 1056 928 WIRE 1056 1184 1024 1184 WIRE 1120 1200 1120 1184 WIRE 816 1216 816 944 WIRE 880 1216 816 1216 FLAG -400 1024 0 FLAG -176 880 in FLAG 1232 1008 0 FLAG 1296 1008 0 FLAG 368 1040 0 FLAG 432 1040 0 FLAG 1600 896 out FLAG 1376 896 signal FLAG 1120 1200 0 SYMBOL SPECIALFUNCTIONS\\MODULATE 32 880 R0 WINDOW 0 37 -55 Left 2 WINDOW 3 57 119 Center 2 SYMATTR InstName A1 SYMATTR Value mark=1.1K space=.9K SYMBOL SPECIALFUNCTIONS\\MODULATE 1024 1184 M0 WINDOW 0 55 -43 Right 2 WINDOW 3 57 119 Center 2 SYMATTR InstName A3 SYMATTR Value mark=1.1K space=.9K SYMBOL DIGITAL\\SCHMTBUF 1488 832 R0 WINDOW 0 1 33 Left 2 WINDOW 3 12 105 Center 2 SYMATTR InstName A4 SYMATTR Value Vt=.5 Vh=100m SYMBOL E 1296 896 R0 WINDOW 0 32 28 Left 2 SYMATTR InstName E2 SYMATTR Value Laplace=1./(1+.0007*s)**3 SYMBOL e 432 928 R0 WINDOW 3 -25 150 Center 2 WINDOW 39 -31 183 Center 2 SYMATTR Value Laplace={w0/Q}*s /(s*s + {w0/Q}*s + {w0*w0}) SYMATTR SpiceLine window=.1 nfft=4096 SYMATTR InstName E1 SYMBOL BV -400 896 R0 SYMATTR InstName B1 SYMATTR Value V=rand(time*250) >= .5 SYMBOL DIGITAL\\PHIDET 880 928 R0 WINDOW 3 -16 72 Left 2 WINDOW 39 -28 140 Left 2 WINDOW 40 -16 176 Left 2 WINDOW 123 -16 104 Left 2 SYMATTR Value Iout=15u SYMATTR SpiceLine Vhigh=2.5 SYMATTR SpiceLine2 Ref=0 SYMATTR Value2 Vlow=-.5 SYMATTR InstName A5 SYMBOL cap 1104 1120 R0 SYMATTR InstName C2 SYMATTR Value .0025µ SYMBOL res 1104 960 R0 SYMATTR InstName R1 SYMATTR Value 1K TEXT -224 1240 Left 2 !.tran 0 300m 10m TEXT -224 1200 Left 2 !.params w0=2*pi*1K Q=5 TEXT -224 1280 Left 2 !;.options baudrate=250 delay=1.4m TEXT 568 1336 Top 1 ;This example schematic is supplied for informational/educational purposes only.