<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.4">
<drawing>
<board>
<plain>
<wire x1="-0.63" y1="-0.47" x2="159.37" y2="-0.47" width="0" layer="20"/>
<wire x1="159.37" y1="-0.47" x2="159.37" y2="99.53" width="0" layer="20"/>
<wire x1="159.37" y1="99.53" x2="-0.63" y2="99.53" width="0" layer="20"/>
<wire x1="-0.63" y1="99.53" x2="-0.63" y2="-0.47" width="0" layer="20"/>
<text>CSA-DUALSID-1.0B</text>
<text>(C) A. Fachat</text>
<text>CSA-DUALSID-1.0B</text>
<text>(C) A. Fachat</text>
<text>Board mixer
input</text>
<text>SID EXTIN
mixer input</text>
</plain>
<libraries>
<library name="csa">
<packages>
<package name="CSABUS">
</package>
<package name="DIL20">
</package>
<package name="DIL28">
</package>
<package name="DIL08">
</package>
<package name="GRID6">
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="C025-025X050">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.5 mm, outline 2.5 x 5 mm</description>
</package>
<package name="0204/7">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0204, grid 7.5 mm</description>
</package>
<package name="E2,5-7">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.54 mm, diameter 7 mm</description>
</package>
<package name="E2-5">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.032 mm, diameter 5 mm</description>
</package>
<package name="C025-024X044">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.5 mm, outline 2.4 x 4.4 mm</description>
</package>
<package name="TJ4-U2">
<description>&lt;b&gt;Inductor&lt;/b&gt;&lt;p&gt;
Source: TJ-Serie Vishay.pdf</description>
</package>
</packages>
</library>
<library name="74xx-eu">
<description>&lt;b&gt;TTL Devices, 74xx Series with European Symbols&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Texas Instruments &lt;i&gt;TTL Data Book&lt;/i&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;Volume 1, 1996.
&lt;li&gt;TTL Data Book, Volume 2 , 1993
&lt;li&gt;National Seminconductor Databook 1990, ALS/LS Logic
&lt;li&gt;ttl 74er digital data dictionary, ECA Electronic + Acustic GmbH, ISBN 3-88109-032-0
&lt;li&gt;http://icmaster.com/ViewCompare.asp
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL16">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="jumper">
<description>&lt;b&gt;Jumpers&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="JP2">
<description>&lt;b&gt;JUMPER&lt;/b&gt;</description>
</package>
<package name="JP1">
<description>&lt;b&gt;JUMPER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="con-lumberg">
<description>&lt;b&gt;Lumberg Connectors&lt;/b&gt;&lt;p&gt;
include con-mfs.lbr - 2001.03.22&lt;br&gt;
Jack connectors - 2005.11.23&lt;p&gt;
http://www.lumberg.de&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="1503_09">
<description>&lt;b&gt;Jack connectors according to JISC 6560, 3.5 mm&lt;/b&gt;&lt;p&gt;
Klinkeneinbaukupplung nach JISC 6560, 3,5 mm, 3-polig/&lt;br&gt;
stereo, abgewinkelte Ausführung, mit 2 Öffnern und Lötaugen,&lt;br&gt;
für Leiterplatten Rückseitenmontage&lt;p&gt;
Source: http://www.lumberg.com/Produkte/PDFs/1503_09.pdf</description>
</package>
</packages>
</library>
<library name="transistor">
<description>&lt;b&gt;Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO92">
<description>&lt;b&gt;TO 92&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="diode">
<description>&lt;b&gt;Diodes&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Motorola : www.onsemi.com
&lt;li&gt;Fairchild : www.fairchildsemi.com
&lt;li&gt;Philips : www.semiconductors.com
&lt;li&gt;Vishay : www.vishay.de
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DO201-15">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 5.6 mm, horizontal, grid 15.24 mm</description>
</package>
</packages>
</library>
<library name="linear">
<description>&lt;b&gt;Linear Devices&lt;/b&gt;&lt;p&gt;
Operational amplifiers,  comparators, voltage regulators, ADCs, DACs, etc.&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="P1" library="csa" package="CSABUS" value="CSABUS"/>
<element name="IC8" library="csa" package="DIL20" value="74LS688BUSOPT"/>
<element name="C1" library="rcl" package="E2,5-7" value="47u"/>
<element name="C2" library="rcl" package="C025-025X050" value="100n"/>
<element name="C4" library="rcl" package="C025-025X050" value="100n"/>
<element name="C5" library="rcl" package="C025-025X050" value="100n"/>
<element name="C7" library="rcl" package="C025-025X050" value="100n"/>
<element name="C9" library="rcl" package="C025-025X050" value="100n"/>
<element name="U$1" library="csa" package="DIL28" value="SID"/>
<element name="U$2" library="csa" package="DIL28" value="SID"/>
<element name="IC1" library="74xx-eu" package="DIL16" value="74HCT139N"/>
<element name="JP1" library="jumper" package="JP2" value=""/>
<element name="X1" library="con-lumberg" package="1503_09" value="1503_09">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="1243244"/>
</element>
<element name="C8" library="rcl" package="C025-025X050" value=""/>
<element name="C11" library="rcl" package="C025-025X050" value=""/>
<element name="C15" library="rcl" package="C025-025X050" value=""/>
<element name="C16" library="rcl" package="C025-025X050" value=""/>
<element name="C17" library="rcl" package="C025-025X050" value="2200p"/>
<element name="C18" library="rcl" package="C025-025X050" value="2200p"/>
<element name="C19" library="rcl" package="C025-025X050" value="2200p"/>
<element name="C22" library="rcl" package="C025-025X050" value="2200p"/>
<element name="R1" library="rcl" package="0204/7" value=""/>
<element name="R2" library="rcl" package="0204/7" value=""/>
<element name="R3" library="rcl" package="0204/7" value=""/>
<element name="R4" library="rcl" package="0204/7" value=""/>
<element name="JP2" library="jumper" package="JP1" value=""/>
<element name="JP3" library="jumper" package="JP1" value=""/>
<element name="R5" library="rcl" package="0204/7" value="1k"/>
<element name="R6" library="rcl" package="0204/7" value="1k"/>
<element name="C23" library="rcl" package="E2-5" value="10u"/>
<element name="C24" library="rcl" package="E2-5" value="10u"/>
<element name="R7" library="rcl" package="0204/7" value="10k"/>
<element name="R8" library="rcl" package="0204/7" value="10k"/>
<element name="C27" library="rcl" package="C025-025X050" value="1n"/>
<element name="C28" library="rcl" package="C025-025X050" value="1n"/>
<element name="C29" library="rcl" package="C025-025X050" value="470p"/>
<element name="C30" library="rcl" package="C025-025X050" value="470p"/>
<element name="R9" library="rcl" package="0204/7" value="1k"/>
<element name="R10" library="rcl" package="0204/7" value="1k"/>
<element name="C31" library="rcl" package="C025-025X050" value="220p"/>
<element name="C32" library="rcl" package="C025-025X050" value="220p"/>
<element name="T1" library="transistor" package="TO92" value="BC547"/>
<element name="T2" library="transistor" package="TO92" value="BC547"/>
<element name="JP4" library="jumper" package="JP2" value=""/>
<element name="R11" library="rcl" package="0204/7" value="47k"/>
<element name="R12" library="rcl" package="0204/7" value="47k"/>
<element name="U$3" library="csa" package="DIL08" value="MC34063A"/>
<element name="R13" library="rcl" package="0204/7" value=""/>
<element name="R14" library="rcl" package="0204/7" value="0.22"/>
<element name="R15" library="rcl" package="0204/7" value="180"/>
<element name="R16" library="rcl" package="0204/7" value=""/>
<element name="C33" library="rcl" package="E2,5-7" value="100u"/>
<element name="C34" library="rcl" package="E2,5-7" value="100u"/>
<element name="C35" library="rcl" package="E2,5-7" value="330u"/>
<element name="C36" library="rcl" package="C025-024X044" value="1500p"/>
<element name="L2" library="rcl" package="0204/7" value="1uH"/>
<element name="X3" library="con-lumberg" package="1503_09" value="1503_09">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="1243244"/>
</element>
<element name="IC3" library="linear" package="DIL14" value="LM3900N"/>
<element name="R35" library="rcl" package="0204/7" value="100K"/>
<element name="R36" library="rcl" package="0204/7" value="10M"/>
<element name="R37" library="rcl" package="0204/7" value="100k"/>
<element name="C43" library="rcl" package="E2-5" value="1u"/>
<element name="R38" library="rcl" package="0204/7" value="470"/>
<element name="R39" library="rcl" package="0204/7" value="100K"/>
<element name="R40" library="rcl" package="0204/7" value="10M"/>
<element name="R41" library="rcl" package="0204/7" value="100k"/>
<element name="C44" library="rcl" package="E2-5" value="1u"/>
<element name="R42" library="rcl" package="0204/7" value="470"/>
<element name="R43" library="rcl" package="0204/7" value="100K"/>
<element name="R44" library="rcl" package="0204/7" value="10M"/>
<element name="R45" library="rcl" package="0204/7" value="100k"/>
<element name="C45" library="rcl" package="E2-5" value="1u"/>
<element name="R46" library="rcl" package="0204/7" value="470"/>
<element name="R47" library="rcl" package="0204/7" value="100K"/>
<element name="R48" library="rcl" package="0204/7" value="10M"/>
<element name="R49" library="rcl" package="0204/7" value="100k"/>
<element name="C46" library="rcl" package="E2-5" value="1u"/>
<element name="R50" library="rcl" package="0204/7" value="470"/>
<element name="C47" library="rcl" package="E2-5" value="10u"/>
<element name="C48" library="rcl" package="E2-5" value="10u"/>
<element name="R51" library="rcl" package="0204/7" value="47k"/>
<element name="R52" library="rcl" package="0204/7" value="47k"/>
<element name="C3" library="rcl" package="C025-025X050" value="100n"/>
<element name="JP5" library="jumper" package="JP2" value=""/>
<element name="JP6" library="jumper" package="JP2" value=""/>
<element name="JP7" library="jumper" package="JP2" value=""/>
<element name="JP8" library="jumper" package="JP2" value=""/>
<element name="G1" library="csa" package="GRID6" value="GRID6"/>
<element name="G2" library="csa" package="GRID6" value="GRID6"/>
<element name="G5" library="csa" package="GRID6" value="GRID6"/>
<element name="G6" library="csa" package="GRID6" value="GRID6"/>
<element name="G7" library="csa" package="GRID6" value="GRID6"/>
<element name="D2" library="diode" package="DO201-15" value="1N5400"/>
<element name="L4" library="rcl" package="TJ4-U2" value="170-200uH"/>
<element name="R17" library="rcl" package="0204/7" value="10k"/>
<element name="JP9" library="jumper" package="JP2" value=""/>
<element name="C6" library="rcl" package="E2-5" value="1u"/>
<element name="C10" library="rcl" package="E2-5" value="1u"/>
</elements>
<signals>
<signal name="GND">
<contactref element="P1" pad="C32"/>
<contactref element="P1" pad="A1"/>
<contactref element="P1" pad="A28"/>
<contactref element="P1" pad="A29"/>
<contactref element="P1" pad="A30"/>
<contactref element="P1" pad="A31"/>
<contactref element="P1" pad="A32"/>
<contactref element="P1" pad="C1"/>
<contactref element="IC8" pad="10"/>
<contactref element="C1" pad="-"/>
<contactref element="C9" pad="2"/>
<contactref element="C7" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="IC8" pad="14"/>
<contactref element="IC8" pad="9"/>
<contactref element="IC8" pad="7"/>
<contactref element="IC1" pad="8"/>
<contactref element="U$1" pad="14"/>
<contactref element="U$2" pad="14"/>
<contactref element="JP1" pad="2"/>
<contactref element="C19" pad="1"/>
<contactref element="C22" pad="1"/>
<contactref element="C17" pad="1"/>
<contactref element="C18" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="X1" pad="1"/>
<contactref element="C27" pad="1"/>
<contactref element="R9" pad="2"/>
<contactref element="C31" pad="1"/>
<contactref element="C28" pad="1"/>
<contactref element="R10" pad="2"/>
<contactref element="C32" pad="1"/>
<contactref element="R11" pad="2"/>
<contactref element="R12" pad="2"/>
<contactref element="U$3" pad="4"/>
<contactref element="C35" pad="-"/>
<contactref element="C33" pad="-"/>
<contactref element="U$3" pad="2"/>
<contactref element="C36" pad="2"/>
<contactref element="R13" pad="1"/>
<contactref element="C34" pad="-"/>
<contactref element="IC3" pad="7"/>
<contactref element="X3" pad="1"/>
<contactref element="R51" pad="2"/>
<contactref element="R52" pad="2"/>
<contactref element="IC3" pad="7"/>
<contactref element="C3" pad="2"/>
<contactref element="IC1" pad="3"/>
<contactref element="R36" pad="2"/>
<contactref element="R48" pad="2"/>
<contactref element="R44" pad="2"/>
<contactref element="R40" pad="2"/>
<contactref element="JP9" pad="2"/>
</signal>
<signal name="VCC">
<contactref element="P1" pad="C3"/>
<contactref element="P1" pad="C2"/>
<contactref element="IC8" pad="20"/>
<contactref element="C1" pad="+"/>
<contactref element="C2" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="C7" pad="1"/>
<contactref element="C9" pad="1"/>
<contactref element="IC8" pad="12"/>
<contactref element="IC8" pad="16"/>
<contactref element="IC8" pad="2"/>
<contactref element="IC8" pad="3"/>
<contactref element="IC8" pad="5"/>
<contactref element="IC8" pad="15"/>
<contactref element="IC8" pad="18"/>
<contactref element="IC1" pad="16"/>
<contactref element="U$1" pad="25"/>
<contactref element="U$2" pad="25"/>
<contactref element="R1" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="U$3" pad="6"/>
<contactref element="R14" pad="1"/>
<contactref element="C33" pad="+"/>
<contactref element="IC3" pad="14"/>
<contactref element="C3" pad="1"/>
<contactref element="JP5" pad="3"/>
<contactref element="JP6" pad="3"/>
<contactref element="JP7" pad="3"/>
<contactref element="JP8" pad="3"/>
<contactref element="R4" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="R17" pad="2"/>
</signal>
<signal name="D0">
<contactref element="P1" pad="A22"/>
<contactref element="U$1" pad="15"/>
<contactref element="U$2" pad="15"/>
</signal>
<signal name="D1">
<contactref element="P1" pad="A21"/>
<contactref element="U$1" pad="16"/>
<contactref element="U$2" pad="16"/>
</signal>
<signal name="D2">
<contactref element="P1" pad="A20"/>
<contactref element="U$1" pad="17"/>
<contactref element="U$2" pad="17"/>
</signal>
<signal name="D3">
<contactref element="P1" pad="A19"/>
<contactref element="U$1" pad="18"/>
<contactref element="U$2" pad="18"/>
</signal>
<signal name="D4">
<contactref element="P1" pad="A18"/>
<contactref element="U$1" pad="19"/>
<contactref element="U$2" pad="19"/>
</signal>
<signal name="D5">
<contactref element="P1" pad="A17"/>
<contactref element="U$1" pad="20"/>
<contactref element="U$2" pad="20"/>
</signal>
<signal name="D6">
<contactref element="P1" pad="A16"/>
<contactref element="U$1" pad="21"/>
<contactref element="U$2" pad="21"/>
</signal>
<signal name="D7">
<contactref element="P1" pad="A15"/>
<contactref element="U$1" pad="22"/>
<contactref element="U$2" pad="22"/>
</signal>
<signal name="A0">
<contactref element="P1" pad="C23"/>
<contactref element="U$1" pad="9"/>
<contactref element="U$2" pad="9"/>
</signal>
<signal name="A1">
<contactref element="P1" pad="C22"/>
<contactref element="U$1" pad="10"/>
<contactref element="U$2" pad="10"/>
</signal>
<signal name="A2">
<contactref element="P1" pad="C21"/>
<contactref element="U$1" pad="11"/>
<contactref element="U$2" pad="11"/>
</signal>
<signal name="A3">
<contactref element="P1" pad="C20"/>
<contactref element="U$1" pad="12"/>
<contactref element="U$2" pad="12"/>
</signal>
<signal name="A4">
<contactref element="P1" pad="C19"/>
<contactref element="U$1" pad="13"/>
<contactref element="U$2" pad="13"/>
</signal>
<signal name="A5">
<contactref element="P1" pad="C18"/>
<contactref element="IC8" pad="17"/>
</signal>
<signal name="A6">
<contactref element="P1" pad="C17"/>
<contactref element="IC8" pad="4"/>
</signal>
<signal name="A7">
<contactref element="P1" pad="C16"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="A8">
<contactref element="P1" pad="C15"/>
<contactref element="IC8" pad="6"/>
</signal>
<signal name="A9">
<contactref element="P1" pad="C14"/>
<contactref element="IC8" pad="13"/>
</signal>
<signal name="A10">
<contactref element="P1" pad="C13"/>
<contactref element="IC8" pad="8"/>
</signal>
<signal name="A11">
<contactref element="P1" pad="C12"/>
<contactref element="IC8" pad="11"/>
</signal>
<signal name="A12">
<contactref element="P1" pad="C11"/>
</signal>
<signal name="A13">
<contactref element="P1" pad="C10"/>
</signal>
<signal name="A14">
<contactref element="P1" pad="C9"/>
</signal>
<signal name="A15">
<contactref element="P1" pad="C8"/>
</signal>
<signal name="A16">
<contactref element="P1" pad="C7"/>
</signal>
<signal name="A17">
<contactref element="P1" pad="C6"/>
</signal>
<signal name="A18">
<contactref element="P1" pad="C5"/>
</signal>
<signal name="A19">
<contactref element="P1" pad="C4"/>
</signal>
<signal name="/IOSEL">
<contactref element="P1" pad="A7"/>
<contactref element="IC8" pad="1"/>
</signal>
<signal name="/RES">
<contactref element="P1" pad="A27"/>
<contactref element="U$2" pad="5"/>
<contactref element="U$1" pad="5"/>
</signal>
<signal name="PHI2">
<contactref element="P1" pad="C26"/>
<contactref element="U$2" pad="6"/>
<contactref element="U$1" pad="6"/>
</signal>
<signal name="R/-W">
<contactref element="P1" pad="C25"/>
<contactref element="U$2" pad="7"/>
<contactref element="U$1" pad="7"/>
</signal>
<signal name="N$1">
<contactref element="IC8" pad="19"/>
<contactref element="IC1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="IC1" pad="4"/>
<contactref element="U$1" pad="8"/>
</signal>
<signal name="N$3">
<contactref element="IC1" pad="5"/>
<contactref element="U$2" pad="8"/>
</signal>
<signal name="DACLEFT">
<contactref element="C45" pad="+"/>
<contactref element="JP9" pad="1"/>
</signal>
<signal name="DACRIGHT">
<contactref element="C43" pad="+"/>
<contactref element="JP9" pad="3"/>
</signal>
<signal name="N$4">
<contactref element="U$1" pad="1"/>
<contactref element="C8" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="U$1" pad="3"/>
<contactref element="C11" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="U$1" pad="2"/>
<contactref element="C8" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="U$1" pad="4"/>
<contactref element="C11" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="U$2" pad="1"/>
<contactref element="C15" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="U$2" pad="3"/>
<contactref element="C16" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="U$2" pad="2"/>
<contactref element="C15" pad="2"/>
</signal>
<signal name="N$11">
<contactref element="U$2" pad="4"/>
<contactref element="C16" pad="2"/>
</signal>
<signal name="N$12">
<contactref element="U$1" pad="23"/>
<contactref element="C17" pad="2"/>
<contactref element="JP6" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="U$1" pad="24"/>
<contactref element="C18" pad="2"/>
<contactref element="JP5" pad="2"/>
</signal>
<signal name="N$14">
<contactref element="U$2" pad="23"/>
<contactref element="C19" pad="2"/>
<contactref element="JP8" pad="2"/>
</signal>
<signal name="N$15">
<contactref element="U$2" pad="24"/>
<contactref element="C22" pad="2"/>
<contactref element="JP7" pad="2"/>
</signal>
<signal name="SIDRIGHT">
<contactref element="U$2" pad="27"/>
<contactref element="JP3" pad="1"/>
<contactref element="R8" pad="2"/>
<contactref element="C44" pad="+"/>
</signal>
<signal name="SIDLEFT">
<contactref element="U$1" pad="27"/>
<contactref element="JP2" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="C46" pad="+"/>
</signal>
<signal name="N$19">
<contactref element="JP3" pad="2"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="N$20">
<contactref element="JP2" pad="2"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="N$22">
<contactref element="C23" pad="-"/>
<contactref element="X1" pad="3"/>
<contactref element="R12" pad="1"/>
</signal>
<signal name="N$23">
<contactref element="C24" pad="-"/>
<contactref element="X1" pad="2"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="U$1" pad="26"/>
<contactref element="C10" pad="-"/>
</signal>
<signal name="N$21">
<contactref element="U$2" pad="26"/>
<contactref element="C6" pad="-"/>
</signal>
<signal name="N$26">
<contactref element="R7" pad="1"/>
<contactref element="T1" pad="2"/>
<contactref element="C27" pad="2"/>
<contactref element="C30" pad="2"/>
</signal>
<signal name="N$28">
<contactref element="R8" pad="1"/>
<contactref element="T2" pad="2"/>
<contactref element="C28" pad="2"/>
<contactref element="C29" pad="2"/>
</signal>
<signal name="N$30">
<contactref element="C24" pad="+"/>
<contactref element="JP4" pad="2"/>
</signal>
<signal name="N$24">
<contactref element="R10" pad="1"/>
<contactref element="T2" pad="1"/>
<contactref element="C29" pad="1"/>
<contactref element="C32" pad="2"/>
<contactref element="JP4" pad="1"/>
</signal>
<signal name="N$25">
<contactref element="C30" pad="1"/>
<contactref element="R9" pad="1"/>
<contactref element="T1" pad="1"/>
<contactref element="C31" pad="2"/>
<contactref element="C23" pad="+"/>
<contactref element="JP4" pad="3"/>
</signal>
<signal name="VDD">
<contactref element="U$1" pad="28"/>
<contactref element="U$2" pad="28"/>
<contactref element="T1" pad="3"/>
<contactref element="T2" pad="3"/>
<contactref element="L2" pad="2"/>
<contactref element="C34" pad="+"/>
</signal>
<signal name="N$31">
<contactref element="U$3" pad="1"/>
<contactref element="D2" pad="A"/>
<contactref element="L4" pad="1"/>
</signal>
<signal name="N$32">
<contactref element="C35" pad="+"/>
<contactref element="R16" pad="2"/>
<contactref element="L2" pad="1"/>
<contactref element="D2" pad="C"/>
</signal>
<signal name="N$33">
<contactref element="U$3" pad="7"/>
<contactref element="R15" pad="2"/>
<contactref element="R14" pad="2"/>
<contactref element="L4" pad="2"/>
</signal>
<signal name="N$34">
<contactref element="U$3" pad="8"/>
<contactref element="R15" pad="1"/>
</signal>
<signal name="N$27">
<contactref element="U$3" pad="3"/>
<contactref element="C36" pad="1"/>
</signal>
<signal name="N$29">
<contactref element="U$3" pad="5"/>
<contactref element="R16" pad="1"/>
<contactref element="R13" pad="2"/>
</signal>
<signal name="N$57">
<contactref element="R36" pad="1"/>
<contactref element="IC3" pad="1"/>
</signal>
<signal name="N$58">
<contactref element="C43" pad="-"/>
<contactref element="R35" pad="2"/>
</signal>
<signal name="N$59">
<contactref element="R35" pad="1"/>
<contactref element="IC3" pad="6"/>
<contactref element="R37" pad="2"/>
</signal>
<signal name="N$60">
<contactref element="IC3" pad="5"/>
<contactref element="R38" pad="2"/>
<contactref element="R37" pad="1"/>
</signal>
<signal name="N$61">
<contactref element="R40" pad="1"/>
<contactref element="IC3" pad="2"/>
</signal>
<signal name="N$62">
<contactref element="C44" pad="-"/>
<contactref element="R39" pad="2"/>
</signal>
<signal name="N$63">
<contactref element="R39" pad="1"/>
<contactref element="R41" pad="2"/>
<contactref element="IC3" pad="3"/>
</signal>
<signal name="N$64">
<contactref element="R42" pad="2"/>
<contactref element="R41" pad="1"/>
<contactref element="IC3" pad="4"/>
</signal>
<signal name="N$65">
<contactref element="R44" pad="1"/>
<contactref element="IC3" pad="13"/>
</signal>
<signal name="N$66">
<contactref element="C45" pad="-"/>
<contactref element="R43" pad="2"/>
</signal>
<signal name="N$67">
<contactref element="R43" pad="1"/>
<contactref element="R45" pad="2"/>
<contactref element="IC3" pad="8"/>
</signal>
<signal name="N$68">
<contactref element="R46" pad="2"/>
<contactref element="R45" pad="1"/>
<contactref element="IC3" pad="9"/>
</signal>
<signal name="N$69">
<contactref element="R48" pad="1"/>
<contactref element="IC3" pad="12"/>
</signal>
<signal name="N$70">
<contactref element="C46" pad="-"/>
<contactref element="R47" pad="2"/>
</signal>
<signal name="N$71">
<contactref element="R47" pad="1"/>
<contactref element="R49" pad="2"/>
<contactref element="IC3" pad="11"/>
</signal>
<signal name="N$72">
<contactref element="R50" pad="2"/>
<contactref element="R49" pad="1"/>
<contactref element="IC3" pad="10"/>
</signal>
<signal name="N$73">
<contactref element="R38" pad="1"/>
<contactref element="R42" pad="1"/>
<contactref element="C47" pad="+"/>
</signal>
<signal name="N$74">
<contactref element="C47" pad="-"/>
<contactref element="X3" pad="3"/>
<contactref element="R52" pad="1"/>
</signal>
<signal name="N$75">
<contactref element="R46" pad="1"/>
<contactref element="R50" pad="1"/>
<contactref element="C48" pad="+"/>
</signal>
<signal name="N$76">
<contactref element="C48" pad="-"/>
<contactref element="X3" pad="2"/>
<contactref element="R51" pad="1"/>
</signal>
<signal name="N$17">
<contactref element="R2" pad="1"/>
<contactref element="JP5" pad="1"/>
</signal>
<signal name="N$18">
<contactref element="R1" pad="1"/>
<contactref element="JP6" pad="1"/>
</signal>
<signal name="N$36">
<contactref element="R4" pad="2"/>
<contactref element="JP7" pad="1"/>
</signal>
<signal name="N$37">
<contactref element="R3" pad="2"/>
<contactref element="JP8" pad="1"/>
</signal>
<signal name="N$35">
<contactref element="IC1" pad="15"/>
<contactref element="R17" pad="1"/>
<contactref element="IC1" pad="13"/>
<contactref element="IC1" pad="14"/>
</signal>
<signal name="N$38">
<contactref element="JP1" pad="3"/>
<contactref element="C6" pad="+"/>
</signal>
<signal name="N$39">
<contactref element="JP1" pad="1"/>
<contactref element="C10" pad="+"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
