<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="60" y2="0" width="0" layer="20"/>
<wire x1="60" y1="0" x2="60" y2="80" width="0" layer="20"/>
<wire x1="60" y1="80" x2="0" y2="80" width="0" layer="20"/>
<wire x1="0" y1="80" x2="0" y2="0" width="0" layer="20"/>
<hole x="5" y="5" drill="3"/>
<hole x="5" y="62" drill="3"/>
<hole x="55" y="5" drill="3"/>
<hole x="55" y="62" drill="3"/>
<text>R OUT L</text>
<text>R AUX L</text>
<text>GND</text>
<text>~ 15V ~</text>
<text>I2C</text>
<text>Sniffer</text>
<text>+ 12V AUX -</text>
<text>PRE AMP 2014</text>
</plain>
<libraries>
<library name="Misc. ICs">
<packages>
<package name="DIL28-6">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt; 0.6 inch</description>
</package>
<package name="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;
&lt;br&gt;50mil pads
&lt;br&gt;0.7mm holes</description>
</package>
</packages>
</library>
<library name="C">
<packages>
<package name="C-AX-2.5X3.5--7.5">
</package>
<package name="C-AX-2.5X3.5--5">
</package>
<package name="E2,5-5">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.54 mm, diameter 5 mm</description>
</package>
</packages>
</library>
<library name="R">
<packages>
<package name="R-MINI-5">
<description>Widerstand THT Bauform Mini
&lt;p&gt;Größe: 3,0mm x Ø1.5mm
&lt;br&gt;Größencode (metrisch): 3216
&lt;br&gt;Pin-Abstand: 5 mm = 0.2"</description>
</package>
<package name="R-STD-7.5">
<description>Widerstand THT Standardgröße
&lt;p&gt;Größe: 6.5 mm x Ø 2.4 mm
&lt;br&gt;Größencode (metrisch): 6524
&lt;br&gt;Pin-Abstand: 7.5 mm = 0.3"
&lt;p&gt;ACHTUNG: Widerstand nachmessen, ob der sich wirklich noch auf 7.5 mm abbiegen lässt!</description>
</package>
</packages>
</library>
<library name="Pfostenstecker">
<packages>
<package name="1X03Q">
</package>
<package name="1X01">
</package>
<package name="1X05Q">
</package>
<package name="1X02Q">
</package>
</packages>
</library>
<library name="Mech">
<packages>
<package name="1503_09V">
<description>3.5 mm Buchse Stereo
&lt;P&gt;mit Umschaltern
&lt;br&gt;mit Schlitzlöchern
&lt;br&gt;last edit: 2012-02-03 kio</description>
</package>
<package name="CINCH_2X">
</package>
</packages>
</library>
<library name="Dioden">
<packages>
<package name="DO35-7.5">
<description>&lt;b&gt;Diode&lt;/b&gt; DO35 
&lt;p&gt;Länge max. 4.25 mm
&lt;br&gt;Körper Ø max. 1.85 mm
&lt;br&gt; Draht Ø max. 0.56 mm
&lt;br&gt;Bohrung 0.7mm
&lt;p&gt;Pin-Abstand 7.5 mm / 0.3"</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="TO92">
<description>&lt;b&gt;TO-92&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U$1" library="Misc. ICs" package="DIL28-6" value="TDA7300-P"/>
<element name="C1" library="C" package="C-AX-2.5X3.5--5" value="15n"/>
<element name="C2" library="C" package="C-AX-2.5X3.5--5" value="15n"/>
<element name="C3" library="C" package="C-AX-2.5X3.5--7.5" value="100n"/>
<element name="C4" library="C" package="C-AX-2.5X3.5--7.5" value="100n"/>
<element name="C5" library="C" package="C-AX-2.5X3.5--7.5" value="100n"/>
<element name="C6" library="C" package="C-AX-2.5X3.5--7.5" value="100n"/>
<element name="R1" library="R" package="R-STD-7.5" value="51k"/>
<element name="R2" library="R" package="R-STD-7.5" value="5k6"/>
<element name="R3" library="R" package="R-STD-7.5" value="5k6"/>
<element name="R4" library="R" package="R-STD-7.5" value="51k"/>
<element name="C16" library="C" package="E2,5-5" value="10µ"/>
<element name="C17" library="C" package="E2,5-5" value="10µ"/>
<element name="C7" library="C" package="E2,5-5" value="2µ2"/>
<element name="C9" library="C" package="E2,5-5" value="2µ2"/>
<element name="C14" library="C" package="E2,5-5" value="2µ2"/>
<element name="C15" library="C" package="E2,5-5" value="2µ2"/>
<element name="JP2" library="Pfostenstecker" package="1X03Q" value="I2C"/>
<element name="X1" library="Mech" package="1503_09V" value="Line-in 2"/>
<element name="X2" library="Mech" package="1503_09V" value="Line-in 1"/>
<element name="IC1" library="Misc. ICs" package="DIL08" value="NE5532N"/>
<element name="C8" library="C" package="C-AX-2.5X3.5--7.5" value="4n7"/>
<element name="R6" library="R" package="R-STD-7.5" value="47k"/>
<element name="R7" library="R" package="R-STD-7.5" value="470k"/>
<element name="R8" library="R" package="R-STD-7.5" value="68k"/>
<element name="C10" library="C" package="E2,5-5" value="47µ"/>
<element name="C11" library="C" package="C-AX-2.5X3.5--7.5" value="100p"/>
<element name="R9" library="R" package="R-STD-7.5" value="470"/>
<element name="C26" library="C" package="E2,5-5" value="22µ"/>
<element name="C27" library="C" package="E2,5-5" value="22µ"/>
<element name="C28" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
<element name="C29" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
<element name="R23" library="R" package="R-MINI-5" value="1k"/>
<element name="R24" library="R" package="R-MINI-5" value="1k"/>
<element name="R25" library="R" package="R-MINI-5" value="1k"/>
<element name="R26" library="R" package="R-MINI-5" value="1k"/>
<element name="JP3" library="Pfostenstecker" package="1X03Q" value="Front-in"/>
<element name="JP1" library="Pfostenstecker" package="1X03Q" value="Audio-out"/>
<element name="C30" library="C" package="E2,5-5" value="2µ2"/>
<element name="C31" library="C" package="E2,5-5" value="2µ2"/>
<element name="C12" library="C" package="C-AX-2.5X3.5--7.5" value="1n"/>
<element name="C13" library="C" package="E2,5-5" value="2µ2"/>
<element name="CON1" library="Pfostenstecker" package="1X01" value="phono chassis"/>
<element name="C19" library="C" package="C-AX-2.5X3.5--7.5" value="4n7"/>
<element name="R5" library="R" package="R-STD-7.5" value="47k"/>
<element name="R10" library="R" package="R-STD-7.5" value="470k"/>
<element name="R11" library="R" package="R-STD-7.5" value="68k"/>
<element name="C20" library="C" package="E2,5-5" value="47µ"/>
<element name="C21" library="C" package="C-AX-2.5X3.5--7.5" value="100p"/>
<element name="R12" library="R" package="R-STD-7.5" value="470"/>
<element name="C22" library="C" package="C-AX-2.5X3.5--7.5" value="1n"/>
<element name="C23" library="C" package="E2,5-5" value="2µ2"/>
<element name="JP5" library="Pfostenstecker" package="1X03Q" value="POWER"/>
<element name="D1" library="Dioden" package="DO35-7.5" value=""/>
<element name="D2" library="Dioden" package="DO35-7.5" value=""/>
<element name="D3" library="Dioden" package="DO35-7.5" value=""/>
<element name="D4" library="Dioden" package="DO35-7.5" value=""/>
<element name="C24" library="C" package="E2,5-5" value="22µ"/>
<element name="C25" library="C" package="E2,5-5" value="22µ"/>
<element name="IC2" library="linear" package="TO92" value="78L12Z"/>
<element name="IC3" library="linear" package="TO92" value=""/>
<element name="SNIFFER" library="Pfostenstecker" package="1X05Q" value=""/>
<element name="C18" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
<element name="C32" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
<element name="C33" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
<element name="C34" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
<element name="R13" library="R" package="R-STD-7.5" value="100k"/>
<element name="R14" library="R" package="R-STD-7.5" value="100k"/>
<element name="R15" library="R" package="R-STD-7.5" value="100k"/>
<element name="R16" library="R" package="R-STD-7.5" value="100k"/>
<element name="U$5" library="Mech" package="CINCH_2X" value=""/>
<element name="D5" library="Dioden" package="DO35-7.5" value=""/>
<element name="D6" library="Dioden" package="DO35-7.5" value=""/>
<element name="JP4" library="Pfostenstecker" package="1X02Q" value="Stand-by"/>
<element name="IC4" library="linear" package="TO92" value="78L12Z"/>
<element name="C35" library="C" package="E2,5-5" value="22µ"/>
<element name="C36" library="C" package="C-AX-2.5X3.5--5" value="100n"/>
</elements>
<signals>
<signal name="GND">
<contactref element="C1" pad="P$1"/>
<contactref element="C2" pad="P$1"/>
<contactref element="R2" pad="2"/>
<contactref element="R3" pad="1"/>
<contactref element="U$1" pad="3"/>
<contactref element="C16" pad="-"/>
<contactref element="C17" pad="-"/>
<contactref element="X1" pad="1"/>
<contactref element="X2" pad="1"/>
<contactref element="C11" pad="P$1"/>
<contactref element="R6" pad="2"/>
<contactref element="C26" pad="-"/>
<contactref element="C28" pad="P$2"/>
<contactref element="C29" pad="P$1"/>
<contactref element="C27" pad="+"/>
<contactref element="X2" pad="4"/>
<contactref element="X2" pad="5"/>
<contactref element="X1" pad="4"/>
<contactref element="X1" pad="5"/>
<contactref element="C10" pad="-"/>
<contactref element="CON1" pad="1"/>
<contactref element="C21" pad="P$1"/>
<contactref element="R5" pad="2"/>
<contactref element="C20" pad="-"/>
<contactref element="JP5" pad="2"/>
<contactref element="C24" pad="-"/>
<contactref element="C25" pad="+"/>
<contactref element="IC2" pad="2"/>
<contactref element="IC3" pad="1"/>
<contactref element="JP3" pad="2"/>
<contactref element="JP1" pad="2"/>
<contactref element="SNIFFER" pad="1"/>
<contactref element="U$5" pad="GND_L"/>
<contactref element="U$5" pad="GND_R"/>
<contactref element="U$5" pad="SW_R"/>
<contactref element="U$5" pad="SW_L"/>
<contactref element="IC4" pad="2"/>
<contactref element="C35" pad="-"/>
<contactref element="C36" pad="P$2"/>
</signal>
<signal name="N$1">
<contactref element="U$1" pad="4"/>
<contactref element="C1" pad="P$2"/>
</signal>
<signal name="N$2">
<contactref element="U$1" pad="5"/>
<contactref element="C2" pad="P$2"/>
</signal>
<signal name="N$3">
<contactref element="U$1" pad="18"/>
<contactref element="R4" pad="1"/>
<contactref element="C5" pad="P$1"/>
</signal>
<signal name="N$4">
<contactref element="U$1" pad="20"/>
<contactref element="R1" pad="1"/>
<contactref element="C3" pad="P$2"/>
</signal>
<signal name="N$5">
<contactref element="U$1" pad="19"/>
<contactref element="R1" pad="2"/>
<contactref element="C4" pad="P$2"/>
</signal>
<signal name="N$6">
<contactref element="C3" pad="P$1"/>
<contactref element="R2" pad="1"/>
<contactref element="C4" pad="P$1"/>
</signal>
<signal name="N$7">
<contactref element="R4" pad="2"/>
<contactref element="C6" pad="P$1"/>
<contactref element="U$1" pad="17"/>
</signal>
<signal name="N$8">
<contactref element="C6" pad="P$2"/>
<contactref element="R3" pad="2"/>
<contactref element="C5" pad="P$2"/>
</signal>
<signal name="R3">
<contactref element="C9" pad="+"/>
<contactref element="U$1" pad="9"/>
</signal>
<signal name="L2">
<contactref element="C7" pad="+"/>
<contactref element="U$1" pad="15"/>
<contactref element="R15" pad="2"/>
</signal>
<signal name="N$20">
<contactref element="C16" pad="+"/>
<contactref element="U$1" pad="2"/>
</signal>
<signal name="+12V">
<contactref element="U$1" pad="1"/>
<contactref element="IC4" pad="1"/>
<contactref element="C35" pad="+"/>
<contactref element="C36" pad="P$1"/>
</signal>
<signal name="N$21">
<contactref element="U$1" pad="6"/>
<contactref element="C17" pad="+"/>
</signal>
<signal name="R2">
<contactref element="C14" pad="+"/>
<contactref element="U$1" pad="10"/>
</signal>
<signal name="L3">
<contactref element="C15" pad="+"/>
<contactref element="U$1" pad="14"/>
<contactref element="R14" pad="2"/>
</signal>
<signal name="DIGITAL_GND">
<contactref element="U$1" pad="25"/>
<contactref element="JP2" pad="1"/>
</signal>
<signal name="SCLK">
<contactref element="U$1" pad="28"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="SDA">
<contactref element="U$1" pad="27"/>
<contactref element="U$1" pad="26"/>
<contactref element="JP2" pad="3"/>
</signal>
<signal name="N$13">
<contactref element="X2" pad="3"/>
<contactref element="C7" pad="-"/>
</signal>
<signal name="N$25">
<contactref element="X2" pad="2"/>
<contactref element="C14" pad="-"/>
</signal>
<signal name="R4">
<contactref element="C23" pad="+"/>
<contactref element="U$1" pad="8"/>
</signal>
<signal name="N$10">
<contactref element="R8" pad="2"/>
<contactref element="C8" pad="P$2"/>
<contactref element="C12" pad="P$1"/>
</signal>
<signal name="N$15">
<contactref element="R6" pad="1"/>
<contactref element="C11" pad="P$2"/>
<contactref element="IC1" pad="3"/>
<contactref element="U$5" pad="PIN_L"/>
</signal>
<signal name="L4">
<contactref element="C13" pad="+"/>
<contactref element="U$1" pad="13"/>
<contactref element="R13" pad="2"/>
</signal>
<signal name="N$29">
<contactref element="R7" pad="2"/>
<contactref element="C8" pad="P$1"/>
<contactref element="IC1" pad="2"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="N$36">
<contactref element="X1" pad="2"/>
<contactref element="C9" pad="-"/>
</signal>
<signal name="N$42">
<contactref element="X1" pad="3"/>
<contactref element="C15" pad="-"/>
</signal>
<signal name="N$18">
<contactref element="U$1" pad="24"/>
<contactref element="R23" pad="2"/>
</signal>
<signal name="N$19">
<contactref element="U$1" pad="22"/>
<contactref element="R24" pad="2"/>
</signal>
<signal name="N$45">
<contactref element="U$1" pad="23"/>
<contactref element="R25" pad="2"/>
</signal>
<signal name="N$46">
<contactref element="U$1" pad="21"/>
<contactref element="R26" pad="2"/>
</signal>
<signal name="OUT_R">
<contactref element="R26" pad="1"/>
<contactref element="R24" pad="1"/>
<contactref element="JP1" pad="3"/>
</signal>
<signal name="OUT_L">
<contactref element="R23" pad="1"/>
<contactref element="R25" pad="1"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="R1">
<contactref element="C30" pad="+"/>
<contactref element="U$1" pad="11"/>
</signal>
<signal name="L1">
<contactref element="C31" pad="+"/>
<contactref element="U$1" pad="16"/>
<contactref element="R16" pad="2"/>
<contactref element="U$1" pad="12"/>
</signal>
<signal name="N$50">
<contactref element="C30" pad="-"/>
<contactref element="JP3" pad="3"/>
</signal>
<signal name="N$52">
<contactref element="C31" pad="-"/>
<contactref element="JP3" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="R9" pad="2"/>
<contactref element="C10" pad="+"/>
</signal>
<signal name="N$12">
<contactref element="IC1" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="R8" pad="1"/>
<contactref element="C12" pad="P$2"/>
<contactref element="C13" pad="-"/>
</signal>
<signal name="N$22">
<contactref element="R11" pad="2"/>
<contactref element="C19" pad="P$2"/>
<contactref element="C22" pad="P$1"/>
</signal>
<signal name="N$27">
<contactref element="R5" pad="1"/>
<contactref element="C21" pad="P$2"/>
<contactref element="IC1" pad="5"/>
<contactref element="U$5" pad="PIN_R"/>
</signal>
<signal name="N$31">
<contactref element="R10" pad="2"/>
<contactref element="C19" pad="P$1"/>
<contactref element="R12" pad="1"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="N$32">
<contactref element="R12" pad="2"/>
<contactref element="C20" pad="+"/>
</signal>
<signal name="N$33">
<contactref element="R11" pad="1"/>
<contactref element="R10" pad="1"/>
<contactref element="C22" pad="P$2"/>
<contactref element="C23" pad="-"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="N$30">
<contactref element="D1" pad="C"/>
<contactref element="D3" pad="C"/>
<contactref element="C24" pad="+"/>
<contactref element="D5" pad="A"/>
<contactref element="IC4" pad="3"/>
</signal>
<signal name="N$34">
<contactref element="D2" pad="A"/>
<contactref element="D4" pad="A"/>
<contactref element="C25" pad="-"/>
<contactref element="D6" pad="C"/>
</signal>
<signal name="N$35">
<contactref element="JP5" pad="3"/>
<contactref element="D1" pad="A"/>
<contactref element="D2" pad="C"/>
</signal>
<signal name="N$37">
<contactref element="JP5" pad="1"/>
<contactref element="D3" pad="A"/>
<contactref element="D4" pad="C"/>
</signal>
<signal name="N$38">
<contactref element="R13" pad="1"/>
<contactref element="C34" pad="P$1"/>
</signal>
<signal name="N$39">
<contactref element="SNIFFER" pad="5"/>
<contactref element="C34" pad="P$2"/>
</signal>
<signal name="N$40">
<contactref element="SNIFFER" pad="4"/>
<contactref element="C33" pad="P$2"/>
</signal>
<signal name="N$41">
<contactref element="R14" pad="1"/>
<contactref element="C33" pad="P$1"/>
</signal>
<signal name="N$43">
<contactref element="SNIFFER" pad="3"/>
<contactref element="C32" pad="P$2"/>
</signal>
<signal name="N$44">
<contactref element="R15" pad="1"/>
<contactref element="C32" pad="P$1"/>
</signal>
<signal name="N$53">
<contactref element="SNIFFER" pad="2"/>
<contactref element="C18" pad="P$2"/>
</signal>
<signal name="N$54">
<contactref element="R16" pad="1"/>
<contactref element="C18" pad="P$1"/>
</signal>
<signal name="N$55">
<contactref element="IC2" pad="3"/>
<contactref element="D5" pad="C"/>
<contactref element="JP4" pad="2"/>
</signal>
<signal name="N$56">
<contactref element="IC3" pad="2"/>
<contactref element="D6" pad="A"/>
<contactref element="JP4" pad="1"/>
</signal>
<signal name="N$57">
<contactref element="C26" pad="+"/>
<contactref element="C28" pad="P$1"/>
<contactref element="IC1" pad="8"/>
<contactref element="IC2" pad="1"/>
</signal>
<signal name="N$58">
<contactref element="C29" pad="P$2"/>
<contactref element="C27" pad="-"/>
<contactref element="IC1" pad="4"/>
<contactref element="IC3" pad="3"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
