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Assorted termination simulation cleanup.

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- term/Makefile: "make qucs" shortcut for invoking qucs
- term/term.sch: disable switch to .dpl page after simulation
- term/term.sch: changed R3 from 50 Ohm to the more common 47 Ohm
- term/term.sch: changed C2 from 22 pF to 330 pF to match TVS
- term/term.sch: renamed Vin to Vdst and put graph in diagram on top
- term/term.sch: added more annotations
This commit is contained in:
Werner Almesberger 2010-10-24 20:15:11 -03:00
parent 021bb00e96
commit 2e742d9281
2 changed files with 17 additions and 8 deletions
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4
cntr/term/Makefile Normal file
View File

@ -0,0 +1,4 @@
.PHONY: qucs
qucs:
qucs `pwd`/term.sch

21
cntr/term/term.sch
View File

@ -4,7 +4,7 @@
<Grid=10,10,1>
<DataSet=term.dat>
<DataDisplay=term.dpl>
<OpenDisplay=1>
<OpenDisplay=0>
<showFrame=0>
<FrameText0=Title>
<FrameText1=Drawn By:>
@ -16,7 +16,6 @@
<Components>
<GND * 1 340 460 0 0 0 0>
<TLIN Line1 1 570 280 -26 20 0 0 "50 Ohm" 1 "2000 mm" 1 "0 dB" 0 "26.85" 0>
<R R3 1 710 280 -26 -59 0 2 "50 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<GND * 1 1280 460 0 0 0 0>
<GND * 1 1030 460 0 0 0 0>
<_BJT T1 1 930 280 8 -26 0 0 "npn" 1 "1e-16" 1 "1" 1 "1" 0 "0" 0 "0" 0 "0" 1 "0" 0 "0" 0 "1.5" 0 "0" 0 "2" 0 "100" 1 "1" 0 "0" 0 "0" 0 "0" 0 "0" 0 "0" 0 "0" 0 "0.75" 0 "0.33" 0 "0" 0 "0.75" 0 "0.33" 0 "1.0" 0 "0" 0 "0.75" 0 "0" 0 "0.5" 0 "0.0" 0 "0.0" 0 "0.0" 0 "0.0" 0 "0.0" 0 "26.85" 0 "0.0" 0 "1.0" 0 "1.0" 0 "0.0" 0 "1.0" 0 "1.0" 0 "0.0" 0 "0.0" 0 "3.0" 0 "1.11" 0 "26.85" 0 "1.0" 0>
@ -26,12 +25,13 @@
<Vac V3 1 340 330 -89 -26 1 1 "1 V" 1 "1 GHz" 1 "0" 0 "0" 0>
<.DC DC1 1 70 50 0 50 0 0 "26.85" 0 "0.001" 0 "1 pA" 0 "1 uV" 0 "no" 0 "150" 0 "no" 0 "none" 0 "CroutLU" 0>
<.TR TR1 1 70 140 0 86 0 0 "lin" 1 "0 us" 1 "1 us" 1 "20000" 0 "Gear" 0 "4" 0 "1 ns" 0 "1e-16" 0 "150" 0 "0.001" 0 "1 pA" 0 "1 uV" 0 "26.85" 0 "1e-3" 0 "1e-6" 0 "1" 0 "CroutLU" 0 "no" 0 "yes" 0 "0" 0>
<R R1 1 430 280 -26 15 0 0 "500 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<R R4 1 930 170 15 -26 0 1 "1 kOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<Vrect V4 1 340 410 18 -26 0 1 "3 V" 1 "50 ns" 1 "50 ns" 1 "1 ns" 1 "1 ns" 1 "5 ns" 0>
<R R2 1 1190 280 -26 15 0 0 "3 MOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<C C1 1 1030 370 17 -26 1 3 "3 pF" 1 "1 V" 0 "neutral" 0>
<C C2 1 820 370 17 -26 0 1 "22 pF" 1 "" 0 "neutral" 0>
<C C2 1 820 370 17 -26 0 1 "330 pF" 1 "" 0 "neutral" 0>
<R R1 1 430 280 -26 15 0 0 "500 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
<R R3 1 710 280 -26 -59 0 2 "47 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
</Components>
<Wires>
<460 280 540 280 "" 0 0 0 "">
@ -39,7 +39,7 @@
<740 280 820 280 "" 0 0 0 "">
<1220 280 1280 280 "" 0 0 0 "">
<1280 280 1280 460 "" 0 0 0 "">
<1030 280 1160 280 "Vin" 1150 180 107 "">
<1030 280 1160 280 "Vdst" 1150 180 107 "">
<930 310 930 460 "" 0 0 0 "">
<930 100 930 140 "" 0 0 0 "">
<930 100 1280 100 "" 0 0 0 "">
@ -58,14 +58,19 @@
<340 360 340 380 "" 0 0 0 "">
<1030 400 1030 460 "" 0 0 0 "">
<1030 280 1030 340 "" 0 0 0 "">
<340 280 340 280 "Vsrc" 370 250 0 "">
<340 280 340 280 "Vsrc" 290 220 0 "">
</Wires>
<Diagrams>
<Rect 120 799 1223 219 3 #c0c0c0 1 00 1 0 2e-08 3e-07 1 -0.344949 1 3.63136 1 -1 0.5 1 315 0 225 "" "" "">
<"Vin.Vt" #0000ff 0 3 0 0 1>
<Rect 120 799 1223 219 3 #c0c0c0 1 00 1 0 5e-08 1e-06 1 -2 2 4.5 1 -1 0.5 1 315 0 225 "" "" "">
<"Vsrc.Vt" #ff0000 0 3 0 0 0>
<"Vdst.Vt" #0000ff 0 3 0 0 0>
</Rect>
</Diagrams>
<Paintings>
<Text 1040 390 12 #000000 0 "(parasitic)">
<Text 840 390 12 #000000 0 "(TVS)">
<Text 400 340 12 #000000 0 "(very weak driver)">
<Text 1130 340 12 #000000 0 "(1 uA input leakage)">
<Text 250 370 12 #000000 0 "(noise)">
<Text 450 440 12 #000000 0 "(10 MHz)">
</Paintings>