<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.2.0">
<drawing>
<board>
<plain>
<text>Ekho Recorder Rev. A
Clemson Univ.
09/2015
</text>
<text>H+</text>
<text>H+</text>
<text>GND</text>
<text>GND</text>
<wire x1="0" y1="36" x2="0" y2="0" width="0.01" layer="20"/>
<wire x1="0" y1="0" x2="18" y2="0" width="0.01" layer="20"/>
<wire x1="18" y1="0" x2="18" y2="36" width="0.01" layer="20"/>
<wire x1="18" y1="36" x2="0" y2="36" width="0.01" layer="20"/>
</plain>
<libraries>
<library name="SparkFun-Capacitors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. 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="0805">
</package>
</packages>
</library>
<library name="SparkFun-Passives">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. 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="0805">
</package>
</packages>
</library>
<library name="Teensy3.0">
<packages>
<package name="TEENSY_3.0_BASIC">
</package>
</packages>
</library>
<library name="SparkFun-Resistors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. 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="0805">
</package>
</packages>
</library>
<library name="ina225">
<packages>
<package name="MSOP8">
<description>&lt;b&gt;8M, 8-Lead, 0.118" Wide, Miniature Small Outline Package&lt;/b&gt;&lt;p&gt;
MSOP&lt;br&gt;
8M-Package doc1097.pdf</description>
</package>
</packages>
</library>
<library name="ltc6910x">
<packages>
<package name="TSOT23-8">
<description>&lt;b&gt;S6 Package 6-Lead Plastic TSOT-23&lt;/b&gt;&lt;p&gt;
Source: http://cds.linear.com/docs/Datasheet/623012fb.pdf</description>
</package>
</packages>
</library>
<library name="fdg6303n">
<description>&lt;b&gt;FDG6303N Dual N-Channel, Digital FET&lt;/b&gt;&lt;br&gt;
&lt;p&gt;These dual N-Channel logic level enhancement mode field effect transistors are produced using Fairchild's proprietary, high cell density, DMOS technology. This very high density process is especially tailored to minimize on-state resistance. This device has been designed especially for low voltage applications as a replacement for bipolar digital transistors and small signal MOSFETs.&lt;/p&gt;</description>
<packages>
<package name="SC70-6">
<description>&lt;b&gt;6-Lead Thin Shrink Small Outline Transistor Package SC70&lt;/b&gt;&lt;p&gt;
Source: http://www.analog.com/static/imported-files/data_sheets/ADA4853-1_4853-2_4853-3.pdf</description>
</package>
</packages>
</library>
<library name="SparkFun-Connectors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find connectors and sockets- basically anything that can be plugged into or onto.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. 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="1X02">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="R1" library="SparkFun-Passives" package="0805" value="10Ω">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Capacitors" package="0805" value="0.1µF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun-Capacitors" package="0805" value="1.0µF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="SparkFun-Resistors" package="0805" value="2M"/>
<element name="R3" library="SparkFun-Resistors" package="0805" value="2M"/>
<element name="C3" library="SparkFun-Capacitors" package="0805" value="0.1µF"/>
<element name="R4" library="SparkFun-Resistors" package="0805" value=""/>
<element name="U1" library="ina225" package="MSOP8" value="INA225">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U2" library="ltc6910x" package="TSOT23-8" value="LTC6910X"/>
<element name="C5" library="SparkFun-Capacitors" package="0805" value="1µF"/>
<element name="U$1" library="fdg6303n" package="SC70-6" value="FDG6303N"/>
<element name="R5" library="SparkFun-Resistors" package="0805" value=""/>
<element name="JP1" library="SparkFun-Connectors" package="1X02" value="M02PTH"/>
<element name="U$2" library="Teensy3.0" package="TEENSY_3.0_BASIC" value="TEENSY_3.0_BASIC"/>
<element name="R6" library="SparkFun-Resistors" package="0805" value=""/>
<element name="U$3" library="fdg6303n" package="SC70-6" value="FDG6303N"/>
<element name="R7" library="SparkFun-Resistors" package="0805" value=""/>
<element name="R8" library="SparkFun-Resistors" package="0805" value=""/>
<element name="U$4" library="fdg6303n" package="SC70-6" value="FDG6303N"/>
<element name="R9" library="SparkFun-Resistors" package="0805" value=""/>
<element name="R10" library="SparkFun-Resistors" package="0805" value=""/>
<element name="U$5" library="fdg6303n" package="SC70-6" value="FDG6303N"/>
<element name="R11" library="SparkFun-Resistors" package="0805" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="U1" pad="2"/>
<contactref element="U1" pad="7"/>
<contactref element="U2" pad="4"/>
<contactref element="C5" pad="2"/>
<contactref element="U$1" pad="4"/>
<contactref element="U$1" pad="1"/>
<contactref element="JP1" pad="2"/>
<contactref element="U$2" pad="GND1"/>
<contactref element="U$2" pad="GND"/>
<contactref element="U$2" pad="AGND"/>
<contactref element="U$3" pad="4"/>
<contactref element="U$3" pad="1"/>
<contactref element="U$4" pad="4"/>
<contactref element="U$4" pad="1"/>
<contactref element="U$5" pad="4"/>
<contactref element="U$5" pad="1"/>
</signal>
<signal name="HARVESTER_IN">
<contactref element="R1" pad="1"/>
<contactref element="U1" pad="1"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="LOAD_V+">
<contactref element="R1" pad="2"/>
<contactref element="R2" pad="1"/>
<contactref element="U1" pad="8"/>
<contactref element="R5" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="R7" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="R9" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="R11" pad="2"/>
<contactref element="R10" pad="2"/>
</signal>
<signal name="CS_ADC">
<contactref element="U1" pad="4"/>
<contactref element="U$2" pad="23/A9"/>
</signal>
<signal name="VS_ADC">
<contactref element="U2" pad="1"/>
<contactref element="U$2" pad="22/A8"/>
</signal>
<signal name="VBAT">
<contactref element="U$2" pad="VBAT"/>
</signal>
<signal name="VCC">
<contactref element="C3" pad="1"/>
<contactref element="U2" pad="8"/>
<contactref element="U1" pad="3"/>
<contactref element="C2" pad="1"/>
<contactref element="C1" pad="1"/>
<contactref element="U$2" pad="3.3V"/>
<contactref element="U$2" pad="3.3V1"/>
</signal>
<signal name="N$1">
<contactref element="R2" pad="2"/>
<contactref element="R3" pad="1"/>
<contactref element="U2" pad="3"/>
</signal>
<signal name="CSG1">
<contactref element="U1" pad="6"/>
<contactref element="U$2" pad="3"/>
</signal>
<signal name="CSG0">
<contactref element="U1" pad="5"/>
<contactref element="U$2" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="C5" pad="1"/>
<contactref element="U2" pad="2"/>
</signal>
<signal name="VSG0">
<contactref element="U2" pad="5"/>
<contactref element="U$2" pad="4"/>
</signal>
<signal name="VSG2">
<contactref element="U2" pad="7"/>
<contactref element="U$2" pad="6"/>
</signal>
<signal name="VSG1">
<contactref element="U2" pad="6"/>
<contactref element="U$2" pad="5"/>
</signal>
<signal name="5V">
<contactref element="U$2" pad="VIN"/>
</signal>
<signal name="P14">
<contactref element="U$2" pad="14/A0"/>
<contactref element="U$4" pad="5"/>
</signal>
<signal name="P15">
<contactref element="U$2" pad="15/A1"/>
<contactref element="U$4" pad="2"/>
</signal>
<signal name="P18">
<contactref element="U$2" pad="18/A4"/>
<contactref element="U$5" pad="5"/>
</signal>
<signal name="N$12">
<contactref element="R4" pad="1"/>
<contactref element="U$1" pad="3"/>
</signal>
<signal name="N$13">
<contactref element="U$1" pad="6"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="R6" pad="1"/>
<contactref element="U$3" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="U$3" pad="6"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="R8" pad="1"/>
<contactref element="U$4" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="U$4" pad="6"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R10" pad="1"/>
<contactref element="U$5" pad="3"/>
</signal>
<signal name="N$9">
<contactref element="U$5" pad="6"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="P7">
<contactref element="U$2" pad="7"/>
<contactref element="U$1" pad="2"/>
</signal>
<signal name="P8">
<contactref element="U$2" pad="8"/>
<contactref element="U$1" pad="5"/>
</signal>
<signal name="P10">
<contactref element="U$2" pad="10"/>
<contactref element="U$3" pad="2"/>
</signal>
<signal name="P11">
<contactref element="U$2" pad="11"/>
<contactref element="U$3" pad="5"/>
</signal>
<signal name="P17">
<contactref element="U$2" pad="17/A3"/>
<contactref element="U$5" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
