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authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-04-11 16:22:04 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-04-11 16:22:04 +0200
commiteed7072d6336a3cfdc8b52eb20166529a4de4d81 (patch)
tree1505819a1216406e6f15c4315bed93750c7ed68d /qucs
parent3555e921a0c743dbc2cc10d8655827be975c61e0 (diff)
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Add some 1750 detection code to glutt-o-logic
Diffstat (limited to 'qucs')
-rw-r--r--qucs/af_5vpp_to_adc.sch81
1 files changed, 81 insertions, 0 deletions
diff --git a/qucs/af_5vpp_to_adc.sch b/qucs/af_5vpp_to_adc.sch
new file mode 100644
index 0000000..d84e659
--- /dev/null
+++ b/qucs/af_5vpp_to_adc.sch
@@ -0,0 +1,81 @@
+<Qucs Schematic 0.0.19>
+<Properties>
+ <View=-103,-100,1487,868,1,15,0>
+ <Grid=10,10,1>
+ <DataSet=af_5vpp_to_adc.dat>
+ <DataDisplay=af_5vpp_to_adc.dpl>
+ <OpenDisplay=1>
+ <Script=af_5vpp_to_adc.m>
+ <RunScript=0>
+ <showFrame=0>
+ <FrameText0=Title>
+ <FrameText1=Drawn By:>
+ <FrameText2=Date:>
+ <FrameText3=Revision:>
+</Properties>
+<Symbol>
+</Symbol>
+<Components>
+ <GND * 1 30 190 0 0 0 0>
+ <VProbe IN 1 20 170 28 -31 0 0>
+ <C C1 1 160 240 -26 17 0 0 "1 uF" 1 "" 0 "neutral" 0>
+ <Vac Vsrc 1 10 300 18 -26 0 1 "2.5 V" 1 "1750 Hz" 0 "0" 0 "0" 0>
+ <.TR TR1 1 710 520 0 73 0 0 "lin" 1 "0" 1 "0.002 s" 1 "101" 0 "Trapezoidal" 0 "2" 0 "1 ns" 0 "1e-16" 0 "300" 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>
+ <GND * 1 680 400 0 0 0 0>
+ <VProbe OUT 1 890 200 28 -31 0 0>
+ <Lib OP1 1 620 220 25 20 0 0 "OpAmps" 0 "uA741" 0>
+ <GND * 1 580 150 0 0 0 0>
+ <Vdc V2 1 970 80 18 -26 0 1 "12 V" 1>
+ <R R8 1 830 310 -132 -26 0 3 "3.3 kOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
+ <R R7 1 750 220 -26 -65 0 2 "4.7 kOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
+ <R R6 1 330 240 -26 -65 0 2 "4.7 kOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
+ <R R5 1 520 320 -26 -65 0 2 "4.7 kOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
+ <Lib D1 1 580 120 -42 -1 0 3 "Z-Diodes" 0 "1N749" 0>
+ <R R10 1 580 50 -138 -26 0 3 "2.2 kOhm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0>
+</Components>
+<Wires>
+ <10 190 10 240 "" 0 0 0 "">
+ <10 240 10 270 "" 0 0 0 "">
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+ <680 220 720 220 "" 0 0 0 "">
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+ <530 200 580 200 "" 0 0 0 "">
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+</Wires>
+<Diagrams>
+ <Rect 70 755 590 310 3 #c0c0c0 1 00 1 0 0.0002 0.004 1 -3.19938 0.5 3.69314 1 -1 0.2 1 315 0 225 "" "" "">
+ <"IN.Vt" #0000ff 0 3 0 0 0>
+ <"OUT.Vt" #ff0000 0 3 0 0 0>
+ </Rect>
+</Diagrams>
+<Paintings>
+ <Text 10 -40 16 #000000 0 "This is a simulation for the audio\nfrequency input to the STM32 ADC.\nIt receives a 5Vpp signal, must be\nAC coupled, and the ADC wants a\n0 to 3V signal.">
+ <Text 450 110 12 #000000 0 "1N749A\n(4.3V)">
+ <Text 640 170 12 #000000 0 "LM324">
+</Paintings>