Version 4 SHEET 1 4212 952 WIRE 1184 112 848 112 WIRE 848 128 848 112 WIRE 2304 128 2128 128 WIRE 2304 144 2304 128 WIRE 1184 176 1184 112 WIRE 2128 192 2128 128 WIRE 848 224 848 208 WIRE 1424 240 1360 240 WIRE 1488 240 1424 240 WIRE 1632 240 1568 240 WIRE 1696 240 1632 240 WIRE 1840 240 1776 240 WIRE 1952 240 1840 240 WIRE 1056 256 576 256 WIRE 2304 256 2304 224 WIRE 576 272 576 256 WIRE 2544 272 2256 272 WIRE 1360 288 1360 240 WIRE 1360 288 1312 288 WIRE 1424 288 1424 240 WIRE 1632 288 1632 240 WIRE 1840 288 1840 240 WIRE 1056 304 992 304 WIRE 1952 304 1952 240 WIRE 2000 304 1952 304 WIRE 2544 304 2544 272 WIRE 2384 320 2256 320 WIRE 992 336 992 304 WIRE 992 336 736 336 WIRE 1056 336 992 336 WIRE 1360 352 1312 352 WIRE 2384 352 2384 320 WIRE 2384 352 2256 352 WIRE 576 368 576 336 WIRE 2000 368 1952 368 WIRE 2384 368 2384 352 WIRE 1056 400 832 400 WIRE 1360 400 1360 352 WIRE 1424 400 1424 352 WIRE 1424 400 1360 400 WIRE 1488 400 1424 400 WIRE 1632 400 1632 352 WIRE 1632 400 1568 400 WIRE 1696 400 1632 400 WIRE 1840 400 1840 352 WIRE 1840 400 1776 400 WIRE 1952 400 1952 368 WIRE 1952 400 1840 400 WIRE 2544 400 2544 368 WIRE 2288 416 2256 416 WIRE 2288 480 2288 416 WIRE 2384 480 2384 448 WIRE 832 496 832 400 WIRE 1184 528 1184 496 WIRE 2128 560 2128 512 WIRE 1664 576 1648 576 WIRE 1776 576 1744 576 WIRE 832 592 832 576 WIRE 2288 592 2288 560 WIRE 736 608 736 336 WIRE 736 704 736 688 FLAG 1184 528 0 FLAG 848 224 0 FLAG 576 368 0 FLAG 832 592 0 FLAG 2304 256 COM FLAG 2544 400 COM FLAG 2128 560 COM FLAG 1648 576 0 FLAG 736 704 0 FLAG 1776 576 COM FLAG 2384 480 COM FLAG 2288 592 COM SYMBOL voltage 848 112 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 3.3 SYMBOL cap 560 272 R0 WINDOW 123 23 60 Left 2 WINDOW 3 39 35 Left 2 SYMATTR Value2 Rpar=1Meg SYMATTR Value 5p SYMATTR InstName C1 SYMBOL voltage 2304 128 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 3.3 SYMBOL voltage 832 480 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value PULSE(0 3.3 .1u 4n 4n 42n 100n 10) SYMBOL voltage 1760 576 R90 WINDOW 123 74 56 VTop 2 WINDOW 39 53 56 VTop 2 WINDOW 0 -32 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName V4 SYMATTR Value SINE(0 20 1Meg) SYMBOL ind 1584 224 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 32 56 VTop 2 WINDOW 123 53 56 VTop 2 SYMATTR InstName L1 SYMATTR Value 50n SYMATTR Value2 Rser=10 SYMBOL cap 1408 288 R0 SYMATTR InstName C2 SYMATTR Value 100p SYMBOL cap 1616 288 R0 SYMATTR InstName C3 SYMATTR Value 100p SYMBOL cap 1824 288 R0 SYMATTR InstName C4 SYMATTR Value 100p SYMBOL ind 1792 224 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 32 56 VTop 2 WINDOW 123 53 56 VTop 2 SYMATTR InstName L2 SYMATTR Value 50n SYMATTR Value2 Rser=10 SYMBOL ind 1584 416 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 WINDOW 123 -16 56 VBottom 2 SYMATTR InstName L3 SYMATTR Value 50n SYMATTR Value2 Rser=10 SYMBOL ind 1792 416 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 WINDOW 123 -16 56 VBottom 2 SYMATTR InstName L4 SYMATTR Value 50n SYMATTR Value2 Rser=10 SYMBOL voltage 736 592 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V5 SYMATTR Value PWL(0 3.3 1.2u 3.3 +10n 0) SYMBOL voltage 2384 352 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V6 SYMATTR Value PWL(0 0 1.2u 0 +10n 3.3) SYMBOL voltage 2288 464 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V7 SYMATTR Value PULSE(0 3.3 1.5u 4n 4n 42n 100n 10) SYMBOL cap 2528 304 R0 WINDOW 123 22 62 Left 2 WINDOW 3 41 35 Left 2 SYMATTR Value2 Rpar=1Meg SYMATTR Value 5p SYMATTR InstName C5 SYMBOL LTC2862-1 1184 336 R0 SYMATTR InstName U1 SYMBOL LTC2862-1 2128 352 M0 SYMATTR InstName U2 TEXT 2520 704 Left 2 !.tran 3u TEXT 1576 184 Left 2 ;Twisted pair TEXT 1648 144 Bottom 2 ;Forward transmission from DIF to ROF followed by\nreverse transmission from DIR to ROR RECTANGLE Normal 1920 480 1392 160 2