Version 4
SHEET 1 2868 952
WIRE 1312 -80 1168 -80
WIRE 1376 -80 1312 -80
WIRE 1520 -80 1456 -80
WIRE 1584 -80 1520 -80
WIRE 1728 -80 1664 -80
WIRE 1840 -80 1728 -80
WIRE 752 -48 656 -48
WIRE 944 -48 752 -48
WIRE 656 -32 656 -48
WIRE 1312 -32 1312 -80
WIRE 1520 -32 1520 -80
WIRE 1728 -32 1728 -80
WIRE 944 48 944 -48
WIRE 656 64 656 48
WIRE 1312 80 1312 32
WIRE 1312 80 1216 80
WIRE 1376 80 1312 80
WIRE 1520 80 1520 32
WIRE 1520 80 1456 80
WIRE 1584 80 1520 80
WIRE 1728 80 1728 32
WIRE 1728 80 1664 80
WIRE 1808 80 1728 80
WIRE 1120 112 1216 80
WIRE 1120 112 1072 112
WIRE 816 128 400 128
WIRE 2368 128 2128 128
WIRE 400 144 400 128
WIRE 1168 144 1168 -80
WIRE 1168 144 1072 144
WIRE 2368 144 2368 128
WIRE 816 176 800 176
WIRE 2128 192 2128 128
WIRE 800 208 800 176
WIRE 800 208 576 208
WIRE 816 208 800 208
WIRE 400 224 400 208
WIRE 1216 256 1072 256
WIRE 1280 256 1216 256
WIRE 1424 256 1360 256
WIRE 1488 256 1424 256
WIRE 1632 256 1568 256
WIRE 1888 256 1632 256
WIRE 2000 256 1952 256
WIRE 2368 256 2368 224
WIRE 816 272 672 272
WIRE 2592 272 2256 272
WIRE 1152 288 1072 288
WIRE 1888 288 1952 256
WIRE 1888 288 1728 288
WIRE 1952 288 1888 256
WIRE 2000 288 1952 288
WIRE 2592 288 2592 272
WIRE 1216 304 1216 256
WIRE 1424 304 1424 256
WIRE 1632 304 1632 256
WIRE 752 320 752 -48
WIRE 816 320 752 320
WIRE 2432 320 2256 320
WIRE 2432 352 2432 320
WIRE 2432 352 2256 352
WIRE 672 368 672 272
WIRE 2592 384 2592 352
WIRE 944 400 944 368
WIRE 1840 400 1840 -80
WIRE 2000 400 1840 400
WIRE 1152 416 1152 288
WIRE 1216 416 1216 368
WIRE 1216 416 1152 416
WIRE 1280 416 1216 416
WIRE 1424 416 1424 368
WIRE 1424 416 1360 416
WIRE 1488 416 1424 416
WIRE 1632 416 1632 368
WIRE 1632 416 1568 416
WIRE 1728 416 1728 288
WIRE 1728 416 1632 416
WIRE 2336 416 2256 416
WIRE 2432 416 2432 352
WIRE 576 432 576 208
WIRE 1808 432 1808 80
WIRE 2000 432 1808 432
WIRE 672 464 672 448
WIRE 576 528 576 512
WIRE 2336 528 2336 416
WIRE 2432 544 2432 496
WIRE 1456 560 1424 560
WIRE 1568 560 1536 560
WIRE 2128 560 2128 512
WIRE 2336 656 2336 608
FLAG 944 400 0
FLAG 656 64 0
FLAG 400 224 0
FLAG 672 464 0
FLAG 2368 256 COM
FLAG 2592 384 COM
FLAG 2128 560 COM
FLAG 1424 560 0
FLAG 576 528 0
FLAG 2432 544 COM
FLAG 2336 656 COM
FLAG 1568 560 COM
SYMBOL voltage 656 -48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL cap 384 144 R0
WINDOW 123 24 66 Left 2
WINDOW 3 44 36 Left 2
SYMATTR Value2 Rpar=1Meg
SYMATTR Value 5p
SYMATTR InstName C1
SYMBOL voltage 2368 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 3.3
SYMBOL voltage 672 352 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 2.5u 5u 10)
SYMBOL voltage 1552 560 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 10K)
SYMBOL ind 1376 240 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 1200 304 R0
SYMATTR InstName C2
SYMATTR Value 100p
SYMBOL cap 1408 304 R0
SYMATTR InstName C3
SYMATTR Value 100p
SYMBOL cap 1616 304 R0
SYMATTR InstName C4
SYMATTR Value 100p
SYMBOL ind 1584 240 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 1376 432 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 1584 432 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 ind 1472 -96 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 53 56 VTop 2
SYMATTR InstName L5
SYMATTR Value 50n
SYMATTR Value2 Rser=10
SYMBOL cap 1296 -32 R0
SYMATTR InstName C5
SYMATTR Value 100p
SYMBOL cap 1504 -32 R0
SYMATTR InstName C6
SYMATTR Value 100p
SYMBOL cap 1712 -32 R0
SYMATTR InstName C7
SYMATTR Value 100p
SYMBOL ind 1680 -96 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 53 56 VTop 2
SYMATTR InstName L6
SYMATTR Value 50n
SYMATTR Value2 Rser=10
SYMBOL ind 1472 96 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -16 56 VBottom 2
SYMATTR InstName L7
SYMATTR Value 50n
SYMATTR Value2 Rser=10
SYMBOL ind 1680 96 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -16 56 VBottom 2
SYMATTR InstName L8
SYMATTR Value 50n
SYMATTR Value2 Rser=10
SYMBOL voltage 576 416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value PWL(0 0 10n 3.3 50u 3.3 +10n 0)
SYMBOL voltage 2336 512 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value PULSE(0 3.3 50u 4n 4n 2.5u 5u 10)
SYMBOL voltage 2432 400 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V7
SYMATTR Value PWL(0 0 50u 0 +10n 3.3)
SYMBOL cap 2576 288 R0
WINDOW 123 26 62 Left 2
WINDOW 3 39 33 Left 2
SYMATTR Value2 Rpar=1Meg
SYMATTR Value 5p
SYMATTR InstName C8
SYMBOL LTC2864-2 944 208 R0
SYMATTR InstName U1
SYMBOL LTC2864-2 2128 352 M0
SYMATTR InstName U2
TEXT 2520 704 Left 2 !.tran 100u
TEXT 1456 -144 Left 2 ;Twisted pair
TEXT 1368 200 Left 2 ;Twisted pair
TEXT 1528 -240 Bottom 2 ;Forward transmission from DIF to ROF  followed by\nreverse transmission from DIR to ROR
RECTANGLE Normal 1792 144 1264 -160 2
RECTANGLE Normal 1712 496 1184 176 2