<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.5.0">
<drawing>
<board>
<plain>
<wire x1="104.775" y1="26.035" x2="26.035" y2="26.035" width="0" layer="20"/>
<wire x1="26.035" y1="26.035" x2="26.035" y2="22.5425" width="0" layer="20"/>
<wire x1="26.035" y1="22.5425" x2="22.5425" y2="19.05" width="0" layer="20" curve="-90"/>
<wire x1="22.5425" y1="19.05" x2="19.05" y2="22.5425" width="0" layer="20" curve="-90"/>
<wire x1="19.05" y1="22.5425" x2="19.05" y2="26.035" width="0" layer="20"/>
<wire x1="19.05" y1="26.035" x2="-1.016" y2="26.035" width="0" layer="20"/>
<wire x1="-1.016" y1="26.035" x2="-1.016" y2="0.0508" width="0" layer="20"/>
<wire x1="-1.016" y1="0.0508" x2="77.7875" y2="0" width="0" layer="20"/>
<wire x1="77.7875" y1="0" x2="77.7875" y2="3.65125" width="0" layer="20"/>
<wire x1="77.7875" y1="3.65125" x2="81.12125" y2="6.985" width="0" layer="20" curve="-90"/>
<wire x1="81.12125" y1="6.985" x2="81.28" y2="6.985" width="0" layer="20"/>
<wire x1="81.28" y1="6.985" x2="84.61375" y2="3.65125" width="0" layer="20" curve="-90"/>
<wire x1="84.61375" y1="3.65125" x2="84.61375" y2="0.0508" width="0" layer="20"/>
<wire x1="84.61375" y1="0.0508" x2="104.775" y2="0.0508" width="0" layer="20"/>
<wire x1="104.775" y1="0.0508" x2="104.775" y2="26.035" width="0" layer="20"/>
<hole x="81.2165" y="22.5552" drill="3.2004"/>
<hole x="51.8795" y="22.5552" drill="3.2004"/>
<hole x="51.8795" y="3.5306" drill="3.2004"/>
<hole x="22.5298" y="3.5306" drill="3.2004"/>
</plain>
<libraries>
<library name="linear-technology">
<description>&lt;b&gt;Linear Technology Devices&lt;/b&gt;&lt;p&gt;
http://www.linear-tech.com&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SOIC8">
<description>&lt;b&gt;Small Outline IC&lt;/b&gt;</description>
</package>
<package name="SOT223">
<description>&lt;b&gt;Small Outline Transistor&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="avr-7">
<description>&lt;b&gt;AVR Devices&lt;/b&gt;&lt;p&gt;
Version 7 - August 1, 2011.&lt;br&gt;&lt;br&gt;
Added ATmega164P/324P/644P devices for DIP and TQFP.
&lt;p&gt;
Version 4 - March 11, 2008.&lt;br&gt;&lt;br&gt;
This library now includes ONLY ATMEL AVR microcontrollers.  It is the result of merging all other available device libraries available at http://www.cadsoft.de/download as of the time it was made.  In addition to the legacy AT90* devices, it includes most ATMEGA devices including the new 48/88/168, most ATTiny devices and a set of ISP and JTAG pin headers.&lt;p&gt;
Based on the following sources:&lt;p&gt;
&lt;ul&gt;
&lt;li&gt;www.atmel.com
&lt;li&gt; file at90smcu_v400.zip
&lt;li&gt;avr.lbr and atmel.lbr as provided by CadSoft
&lt;li&gt;avr-1.lbr by David Blundell
&lt;li&gt;avr-2.lbr by Boris Zalokar
&lt;li&gt;avr-3.lbr by Carson Reynolds
&lt;li&gt;attiny24_44_84.lbr by Pawel Szramowski (ATTiny24/44/84 devices)
&lt;li&gt;atmel.lbr by Bob Starr (ISP headers)
&lt;li&gt;moates_custom_parts.lbr (edge ISP)
&lt;li&gt;other misc sources
&lt;/ul&gt;
&lt;author&gt;Revised by David Blundell (blundar at gmail dot com) and others.&lt;/author&gt;
&lt;p&gt;
&lt;author&gt;Added Mega162, Tiny2313 John Lussmyer (cougar at casadelgato.com)&lt;/author&gt;
&lt;p&gt;
&lt;author&gt;Added XMega A1,A3,A4,D3,D4 John Lussmyer Aug 1, 2011(cougar at casadelgato.com)&lt;/author&gt;</description>
<packages>
<package name="TQFP44">
<description>&lt;B&gt;Thin Plasic Quad Flat Package&lt;/B&gt;</description>
</package>
<package name="AVR-ISP-6">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;&lt;p&gt; JTAG 6 Pin, 0.1" Straight</description>
</package>
</packages>
</library>
<library name="pinhead">
<description>&lt;b&gt;Pin Header Connectors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="2X06">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X02">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X03">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="buckReg">
<packages>
<package name="SOP-8L">
</package>
</packages>
</library>
<library name="inductors">
<packages>
<package name="DR125">
<description>&lt;b&gt;High Power Density, High Efficiency, Shielded Inductors&lt;/b&gt;&lt;p&gt;
Source: coiltronics_dr_series.pdf</description>
</package>
</packages>
</library>
<library name="diode">
<packages>
<package name="SMA">
<description>&lt;b&gt;SMA&lt;/b&gt; CASE 403D-02&lt;p&gt;
Source: http://www.onsemi.com/pub_link/Collateral/MBRA340T3-D.PDF</description>
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="D/7343-31W">
<description>&lt;b&gt;Chip Capacitor Type KEMET D / EIA 7343-21&lt;/b&gt;&lt;p&gt;
KEMET V / EIA 7343-20, KEMET X / EIA 7343-43 Wafe solder</description>
</package>
<package name="C/6032-28R">
<description>&lt;b&gt;Chip Capacitor Type KEMET C / EIA 6032-28 reflow solder&lt;/b&gt;&lt;p&gt;KEMET U / EIA 6032-15</description>
</package>
<package name="C0603K">
<description>&lt;b&gt;Ceramic Chip Capacitor KEMET 0603 reflow solder&lt;/b&gt;&lt;p&gt;
Metric Code Size 1608</description>
</package>
<package name="R0805">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;</description>
</package>
<package name="R0603">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
We've spent an enormous amount of time creating and checking these footprints and parts. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="WT32">
</package>
</packages>
</library>
<library name="crystal">
<description>&lt;b&gt;Crystals and Crystal Resonators&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="ASV">
</package>
</packages>
</library>
<library name="met-35">
<packages>
<package name="MET-35">
</package>
</packages>
</library>
<library name="misc-audio">
<packages>
<package name="3.5MM-VERT">
</package>
<package name="10-UMLP">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C3" library="rcl" package="C0603K" value=".1uF"/>
<element name="IC3" library="linear-technology" package="SOIC8" value="SN75HVD11D">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="U$5" library="buckReg" package="SOP-8L" value="AP1509-50"/>
<element name="L3" library="inductors" package="DR125" value="47uH"/>
<element name="D1" library="diode" package="SMA" value="SS26-TP"/>
<element name="C27" library="rcl" package="D/7343-31W" value="220uF"/>
<element name="C29" library="rcl" package="C/6032-28R" value="10uF"/>
<element name="IC4" library="linear-technology" package="SOT223" value="MCP1825S">
<attribute name="OC_NEWARK" value="57M7546"/>
<attribute name="MPN" value="LT1963EST-3.3"/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="1501032"/>
</element>
<element name="C31" library="rcl" package="C0603K" value="4.7uF"/>
<element name="C32" library="rcl" package="C0603K" value="1uF"/>
<element name="R18" library="rcl" package="R0603" value="180"/>
<element name="R19" library="rcl" package="R0603" value="180"/>
<element name="R20" library="rcl" package="R0603" value="120"/>
<element name="JP4" library="pinhead" package="1X02" value=""/>
<element name="U$1" library="SparkFun" package="WT32" value="WT32"/>
<element name="JP3" library="pinhead" package="2X06" value=""/>
<element name="JP5" library="pinhead" package="1X03" value=""/>
<element name="C4" library="rcl" package="C0603K" value="47nF"/>
<element name="C5" library="rcl" package="C0603K" value="47nF"/>
<element name="R1" library="rcl" package="R0603" value="2k2"/>
<element name="R2" library="rcl" package="R0603" value="2k2"/>
<element name="C6" library="rcl" package="C0603K" value="1uF"/>
<element name="C7" library="rcl" package="C0603K" value="47nF"/>
<element name="C8" library="rcl" package="C0603K" value="47nF"/>
<element name="U$2" library="met-35" package="MET-35" value="MET-35MET-35"/>
<element name="U$3" library="met-35" package="MET-35" value="MET-35MET-35"/>
<element name="U$4" library="avr-7" package="TQFP44" value="XMEGA-D4TQFP"/>
<element name="CXO1" library="crystal" package="ASV" value="29.4912MHZ"/>
<element name="C9" library="rcl" package="C0603K" value=".01uF"/>
<element name="C10" library="rcl" package="C0603K" value=".1uF"/>
<element name="C11" library="rcl" package="C0603K" value=".1uF"/>
<element name="C12" library="rcl" package="C0603K" value=".1uF"/>
<element name="C13" library="rcl" package="C0603K" value=".1uF"/>
<element name="U$6" library="avr-7" package="AVR-ISP-6" value="AVR-PDIVERT"/>
<element name="JP1" library="pinhead" package="1X02" value=""/>
<element name="U$7" library="misc-audio" package="3.5MM-VERT" value="47257-0001"/>
<element name="U$8" library="misc-audio" package="10-UMLP" value="FSA2269"/>
<element name="U$9" library="misc-audio" package="10-UMLP" value="FSA2269"/>
<element name="U$10" library="misc-audio" package="3.5MM-VERT" value="47257-0001"/>
<element name="R4" library="rcl" package="R0805" value="2k2"/>
<element name="R3" library="rcl" package="R0805" value="47k"/>
<element name="C1" library="rcl" package="C0603K" value=".1uF"/>
<element name="C2" library="rcl" package="C0603K" value=".1uF"/>
<element name="JP2" library="pinhead" package="1X02" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="IC4" pad="4"/>
<contactref element="C3" pad="2"/>
<contactref element="IC3" pad="5"/>
<contactref element="U$5" pad="P$4"/>
<contactref element="U$5" pad="P$5"/>
<contactref element="U$5" pad="P$6"/>
<contactref element="U$5" pad="P$7"/>
<contactref element="U$5" pad="P$8"/>
<contactref element="D1" pad="A"/>
<contactref element="C27" pad="-"/>
<contactref element="C29" pad="-"/>
<contactref element="C31" pad="2"/>
<contactref element="IC4" pad="2"/>
<contactref element="C32" pad="2"/>
<contactref element="U$1" pad="2"/>
<contactref element="U$1" pad="3"/>
<contactref element="U$1" pad="4"/>
<contactref element="U$1" pad="31"/>
<contactref element="U$1" pad="39"/>
<contactref element="U$1" pad="18"/>
<contactref element="U$1" pad="43"/>
<contactref element="U$1" pad="48"/>
<contactref element="JP3" pad="2"/>
<contactref element="JP3" pad="1"/>
<contactref element="JP5" pad="3"/>
<contactref element="C6" pad="2"/>
<contactref element="U$4" pad="30"/>
<contactref element="CXO1" pad="2"/>
<contactref element="CXO1" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C11" pad="2"/>
<contactref element="C10" pad="2"/>
<contactref element="C12" pad="2"/>
<contactref element="C13" pad="2"/>
<contactref element="U$4" pad="30"/>
<contactref element="U$4" pad="38"/>
<contactref element="U$4" pad="8"/>
<contactref element="U$4" pad="18"/>
<contactref element="U$6" pad="6"/>
<contactref element="U$9" pad="P$4"/>
<contactref element="U$8" pad="P$4"/>
<contactref element="R4" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="U$10" pad="P$1"/>
<contactref element="JP2" pad="1"/>
</signal>
<signal name="RECEIVE_OUT">
<contactref element="IC3" pad="1"/>
<contactref element="U$4" pad="42"/>
</signal>
<signal name="TRANSMIT_OUT">
<contactref element="IC3" pad="4"/>
<contactref element="U$4" pad="43"/>
</signal>
<signal name="TX+">
<contactref element="R20" pad="1"/>
<contactref element="R19" pad="2"/>
<contactref element="JP3" pad="6"/>
</signal>
<signal name="TX-">
<contactref element="R20" pad="2"/>
<contactref element="R18" pad="2"/>
<contactref element="JP3" pad="8"/>
</signal>
<signal name="RXD">
<contactref element="U$1" pad="16"/>
</signal>
<signal name="TXD">
<contactref element="U$1" pad="15"/>
</signal>
<signal name="TRANSMIT_EN">
<contactref element="IC3" pad="3"/>
<contactref element="U$4" pad="1"/>
</signal>
<signal name="+3V3">
<contactref element="C3" pad="1"/>
<contactref element="IC3" pad="8"/>
<contactref element="IC4" pad="3"/>
<contactref element="C32" pad="1"/>
<contactref element="U$1" pad="37"/>
<contactref element="U$1" pad="17"/>
<contactref element="U$1" pad="1"/>
<contactref element="JP5" pad="2"/>
<contactref element="CXO1" pad="4"/>
<contactref element="C9" pad="1"/>
<contactref element="C9" pad="1"/>
<contactref element="U$4" pad="9"/>
<contactref element="U$4" pad="31"/>
<contactref element="U$4" pad="19"/>
<contactref element="C10" pad="1"/>
<contactref element="C11" pad="1"/>
<contactref element="C12" pad="1"/>
<contactref element="C13" pad="1"/>
<contactref element="U$4" pad="39"/>
<contactref element="U$8" pad="P$9"/>
<contactref element="U$9" pad="P$9"/>
<contactref element="R3" pad="1"/>
<contactref element="C1" pad="1"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="MIC_L+">
<contactref element="U$1" pad="44"/>
<contactref element="C8" pad="2"/>
</signal>
<signal name="VOUT">
<contactref element="U$5" pad="P$2"/>
<contactref element="L3" pad="1"/>
<contactref element="D1" pad="C"/>
</signal>
<signal name="+5V">
<contactref element="U$5" pad="P$3"/>
<contactref element="L3" pad="2"/>
<contactref element="C27" pad="+"/>
<contactref element="IC4" pad="1"/>
<contactref element="C31" pad="1"/>
<contactref element="JP5" pad="1"/>
</signal>
<signal name="VCC">
<contactref element="U$5" pad="P$1"/>
<contactref element="C29" pad="+"/>
<contactref element="JP3" pad="10"/>
</signal>
<signal name="TXOUT+">
<contactref element="IC3" pad="6"/>
<contactref element="R18" pad="1"/>
</signal>
<signal name="TXOUT-">
<contactref element="IC3" pad="7"/>
<contactref element="R19" pad="1"/>
</signal>
<signal name="R-">
<contactref element="U$1" pad="46"/>
<contactref element="U$8" pad="P$1"/>
</signal>
<signal name="L-">
<contactref element="U$1" pad="49"/>
<contactref element="U$9" pad="P$1"/>
</signal>
<signal name="R+">
<contactref element="U$1" pad="47"/>
<contactref element="U$8" pad="P$3"/>
</signal>
<signal name="L+">
<contactref element="U$1" pad="50"/>
<contactref element="U$9" pad="P$3"/>
</signal>
<signal name="MIC_L-">
<contactref element="U$1" pad="45"/>
<contactref element="C5" pad="2"/>
</signal>
<signal name="MIC_BIAS">
<contactref element="U$1" pad="40"/>
<contactref element="C8" pad="1"/>
<contactref element="C7" pad="1"/>
<contactref element="C6" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="OL-">
<contactref element="JP3" pad="9"/>
<contactref element="U$2" pad="P$3"/>
</signal>
<signal name="OL+">
<contactref element="JP3" pad="7"/>
<contactref element="U$2" pad="P$1"/>
</signal>
<signal name="OR-">
<contactref element="JP3" pad="5"/>
<contactref element="U$3" pad="P$3"/>
</signal>
<signal name="OR+">
<contactref element="JP3" pad="3"/>
<contactref element="U$3" pad="P$1"/>
</signal>
<signal name="MIC_R-">
<contactref element="U$1" pad="42"/>
<contactref element="C4" pad="2"/>
</signal>
<signal name="MIC_R+">
<contactref element="U$1" pad="41"/>
<contactref element="C7" pad="2"/>
</signal>
<signal name="MIC_R">
<contactref element="C4" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="U$10" pad="P$3"/>
</signal>
<signal name="MIC_L">
<contactref element="C5" pad="1"/>
<contactref element="R2" pad="2"/>
<contactref element="U$10" pad="P$2"/>
</signal>
<signal name="OSC">
<contactref element="CXO1" pad="3"/>
<contactref element="U$4" pad="37"/>
</signal>
<signal name="N$4">
<contactref element="U$4" pad="35"/>
<contactref element="U$6" pad="5"/>
</signal>
<signal name="N$5">
<contactref element="U$6" pad="1"/>
<contactref element="U$4" pad="34"/>
</signal>
<signal name="RECEIVE_EN">
<contactref element="IC3" pad="2"/>
<contactref element="U$4" pad="44"/>
</signal>
<signal name="RXD1">
<contactref element="U$4" pad="22"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="TXD1">
<contactref element="U$4" pad="23"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="RXD0">
<contactref element="JP4" pad="1"/>
<contactref element="U$4" pad="12"/>
</signal>
<signal name="TXD0">
<contactref element="JP4" pad="2"/>
<contactref element="U$4" pad="13"/>
</signal>
<signal name="IN_L+">
<contactref element="U$2" pad="P$5"/>
<contactref element="U$9" pad="P$5"/>
</signal>
<signal name="IN_L-">
<contactref element="U$2" pad="P$4"/>
<contactref element="U$9" pad="P$8"/>
</signal>
<signal name="IN_R+">
<contactref element="U$3" pad="P$5"/>
<contactref element="U$8" pad="P$5"/>
</signal>
<signal name="IN_R-">
<contactref element="U$3" pad="P$4"/>
<contactref element="U$8" pad="P$8"/>
</signal>
<signal name="AUX_L">
<contactref element="U$7" pad="P$3"/>
<contactref element="U$9" pad="P$2"/>
</signal>
<signal name="AUX_R">
<contactref element="U$7" pad="P$2"/>
<contactref element="R4" pad="1"/>
<contactref element="U$8" pad="P$2"/>
</signal>
<signal name="AUX_S">
<contactref element="U$7" pad="P$4"/>
<contactref element="U$8" pad="P$6"/>
<contactref element="U$8" pad="P$7"/>
<contactref element="U$9" pad="P$7"/>
<contactref element="U$9" pad="P$6"/>
<contactref element="R3" pad="2"/>
<contactref element="U$4" pad="7"/>
</signal>
<signal name="GNDA">
<contactref element="U$7" pad="P$1"/>
<contactref element="U$9" pad="P$10"/>
<contactref element="U$8" pad="P$10"/>
</signal>
<signal name="SW1">
<contactref element="JP2" pad="2"/>
<contactref element="U$4" pad="16"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
