<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.5.0">
<drawing>
<board>
<plain>
<wire x1="13.573125" y1="21.43125" x2="9.128125" y2="21.43125" width="0" layer="20"/>
<wire x1="9.128125" y1="21.43125" x2="8.493125" y2="20.79625" width="0" layer="20" curve="90"/>
<wire x1="8.493125" y1="20.79625" x2="8.493125" y2="14.2875" width="0" layer="20"/>
<wire x1="8.493125" y1="14.2875" x2="0.47625" y2="14.2875" width="0" layer="20"/>
<wire x1="0.47625" y1="14.2875" x2="-0.15875" y2="13.6525" width="0" layer="20" curve="90"/>
<wire x1="-0.15875" y1="13.6525" x2="-0.15875" y2="12.065" width="0" layer="20"/>
<wire x1="-0.15875" y1="12.065" x2="0.47625" y2="11.43" width="0" layer="20" curve="90"/>
<wire x1="0.47625" y1="11.43" x2="8.493125" y2="11.43" width="0" layer="20"/>
<wire x1="8.493125" y1="11.43" x2="8.493125" y2="6.50875" width="0" layer="20"/>
<wire x1="8.493125" y1="6.50875" x2="9.2075" y2="5.87375" width="0" layer="20" curve="90"/>
<wire x1="9.2075" y1="5.87375" x2="20.712059375" y2="5.87375" width="0" layer="20"/>
<wire x1="20.712059375" y1="5.87375" x2="21.351875" y2="6.505971875" width="0" layer="20" curve="89.749333"/>
<wire x1="21.351875" y1="6.505971875" x2="21.351875" y2="20.79625" width="0" layer="20"/>
<wire x1="21.351875" y1="20.79625" x2="20.716875" y2="21.43125" width="0" layer="20" curve="90"/>
<wire x1="20.716875" y1="21.43125" x2="16.8275" y2="21.43125" width="0" layer="20"/>
<wire x1="16.8275" y1="21.43125" x2="16.8275" y2="22.5407" width="0" layer="20"/>
<wire x1="16.8275" y1="22.5407" x2="15.317575" y2="23.97125" width="0" layer="20" curve="90"/>
<wire x1="15.317575" y1="23.97125" x2="14.97135625" y2="23.97125" width="0" layer="20"/>
<wire x1="14.97135625" y1="23.97125" x2="13.573125" y2="22.33489375" width="0" layer="20" curve="90"/>
<wire x1="13.573125" y1="22.33489375" x2="13.573125" y2="21.43125" width="0" layer="20"/>
<hole x="15.1765" y="22.386925" drill="1.5875"/>
<text>vin</text>
<text>f2</text>
<text>Add pokeout with gnd pads?
What type of ant? Trivial dipole?</text>
</plain>
<libraries>
<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="0805">
</package>
<package name="0402-CAP">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
chip</description>
</package>
<package name="C0402">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
chip</description>
</package>
</packages>
</library>
<library name="picoAVA-R8">
<description>Generated from &lt;b&gt;picoAVA-R8.sch&lt;/b&gt;&lt;p&gt;
by exp-lbrs.ulp</description>
<packages>
<package name="CRYSTAL_3.2X2.5-TCXO">
</package>
</packages>
</library>
<library name="Protofusion">
<packages>
<package name="UFQFPN28">
</package>
<package name="POGOPROG-CONN-4-ALLSMT">
</package>
<package name="TSOT23-6">
</package>
<package name="FEATHERHAB-ALPHA">
</package>
</packages>
</library>
<library name="picoAVA-R9">
<description>Generated from &lt;b&gt;picoAVA-R9.sch&lt;/b&gt;&lt;p&gt;
by exp-lbrs.ulp</description>
<packages>
<package name="AVA_JTI_ANTENNA-1575AT43A40">
</package>
<package name="AVA_UBLOX_MAX-6">
<description>uBlox MAX-6</description>
</package>
<package name="SPARKFUN_0402-CAP">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
chip</description>
</package>
<package name="SPARKFUN_0402-RES">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
chip</description>
</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; Creative Commons ShareAlike 4.0 International - https://creativecommons.org/licenses/by-sa/4.0/ 
&lt;br&gt;&lt;br&gt;
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="0603">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="CHIPLED_0603">
<description>&lt;b&gt;CHIPLED&lt;/b&gt;&lt;p&gt;
Source: http://www.osram.convergy.de/ ... LG_LY Q971.pdf</description>
</package>
</packages>
</library>
<library name="SLAT-RCL">
<description>SLAT Resisters, Capacitors, Inductors</description>
<packages>
<package name="R0402">
</package>
</packages>
</library>
<library name="SLAT-Connectors">
<description>SLAT Connectors</description>
<packages>
<package name="JST_ZH-V-2-1">
</package>
</packages>
</library>
<library name="zelazko">
<packages>
<package name="MSOP10">
<description>&lt;b&gt;10-Lead Mini Small Outline Package [MSOP]&lt;/b&gt; (RM-10)&lt;p&gt;
Source: http://www.analog.com/UploadedFiles/Data_Sheets/35641221898805SSM2167_b.pdf&lt;br&gt;
COMPLIANT TO JEDEC STANDARDS MO-187BA</description>
</package>
</packages>
</library>
<library name="SLAT-Transistors">
<description>SLAT Transistors</description>
<packages>
<package name="SC-75A">
</package>
</packages>
</library>
<library name="wirepad">
<description>&lt;b&gt;Single Pads&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="1,6/0,8">
<description>&lt;b&gt;THROUGH-HOLE PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U2" library="picoAVA-R8" package="CRYSTAL_3.2X2.5-TCXO" value="CRYSTAL_3.2X2.5-TCXO">
<attribute name="NAME"/>
</element>
<element name="U$4" library="picoAVA-R9" package="AVA_JTI_ANTENNA-1575AT43A40" value="AVA_JTI_ANTENNA-1575AT43A40"/>
<element name="U7" library="picoAVA-R9" package="AVA_UBLOX_MAX-6" value="AVA_UBLOX_MAX-6"/>
<element name="R5" library="picoAVA-R9" package="SPARKFUN_0402-RES" value="100k"/>
<element name="C7" library="picoAVA-R9" package="SPARKFUN_0402-CAP" value="0.1uF"/>
<element name="U6" library="Protofusion" package="UFQFPN28" value="STM32F031G6U6"/>
<element name="J1" library="Protofusion" package="POGOPROG-CONN-4-ALLSMT" value="POGOPIN-CONN-4"/>
<element name="U4" library="Protofusion" package="TSOT23-6" value="LTC3531-3.3"/>
<element name="C6" library="SparkFun" package="0805" value="47uF"/>
<element name="L1" library="SparkFun-Passives" package="0603" value="CBMF1608T100K"/>
<element name="C9" library="SparkFun" package="0805" value="47uF"/>
<element name="C5" library="SparkFun" package="0402-CAP" value="0.1uF"/>
<element name="C8" library="SparkFun" package="0402-CAP" value="0.1uF"/>
<element name="U$3" library="Protofusion" package="FEATHERHAB-ALPHA" value=""/>
<element name="C10" library="SparkFun" package="0402-CAP" value="0.01uF"/>
<element name="LED1" library="adafruit" package="CHIPLED_0603" value=""/>
<element name="R6" library="SLAT-RCL" package="R0402" value=""/>
<element name="J3" library="SLAT-Connectors" package="JST_ZH-V-2-1" value="JST_ZH-V-2-1"/>
<element name="R3" library="SLAT-RCL" package="R0402" value="2M 1%"/>
<element name="R7" library="SLAT-RCL" package="R0402" value="2M 1%"/>
<element name="CM3" library="SparkFun" package="0402-CAP" value="0.1uF"/>
<element name="IC1" library="zelazko" package="MSOP10" value="SI5351A"/>
<element name="LM2" library="SparkFun" package="C0402" value="BRC1608TR72M6"/>
<element name="Q2" library="SLAT-Transistors" package="SC-75A" value="SI1021R"/>
<element name="Q1" library="SLAT-Transistors" package="SC-75A" value="SI1021R"/>
<element name="R1" library="picoAVA-R9" package="SPARKFUN_0402-RES" value="100k"/>
<element name="R4" library="SLAT-RCL" package="R0402" value="10k"/>
<element name="R8" library="SLAT-RCL" package="R0402" value="10k"/>
<element name="CM1" library="SparkFun" package="0402-CAP" value="423pF"/>
<element name="CM2" library="SparkFun" package="0402-CAP" value="423pf"/>
<element name="CM4" library="SparkFun" package="0402-CAP" value="100nF"/>
<element name="CM5" library="SparkFun" package="0402-CAP" value="1nF"/>
<element name="PAD1" library="wirepad" package="1,6/0,8" value="WIREPAD1,6/0,8"/>
</elements>
<signals>
<signal name="GND">
<contactref element="U2" pad="2"/>
<contactref element="U2" pad="2"/>
<contactref element="C7" pad="2"/>
<contactref element="U7" pad="12_GND"/>
<contactref element="U7" pad="10_GND"/>
<contactref element="U7" pad="1_GND"/>
<contactref element="U6" pad="16"/>
<contactref element="J1" pad="2"/>
<contactref element="U4" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="C10" pad="2"/>
<contactref element="LED1" pad="C"/>
<contactref element="J3" pad="2"/>
<contactref element="R7" pad="1"/>
<contactref element="CM3" pad="2"/>
<contactref element="IC1" pad="8"/>
<contactref element="CM1" pad="2"/>
<contactref element="CM2" pad="2"/>
<contactref element="CM5" pad="2"/>
</signal>
<signal name="VCC">
<contactref element="R5" pad="1"/>
<contactref element="U6" pad="17"/>
<contactref element="U6" pad="5"/>
<contactref element="U7" pad="6_V_BCKP"/>
<contactref element="J1" pad="1"/>
<contactref element="U4" pad="3"/>
<contactref element="C9" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="C8" pad="1"/>
<contactref element="U2" pad="4"/>
<contactref element="C10" pad="1"/>
<contactref element="Q2" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="Q1" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="U7" pad="9_V_RESET"/>
<contactref element="U7" pad="8_VCC"/>
<contactref element="U7" pad="7_VCC_IO"/>
<contactref element="C7" pad="1"/>
<contactref element="Q2" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="U7" pad="11_RF_IN"/>
<contactref element="U$4" pad="FEED"/>
</signal>
<signal name="TIMEPULSE">
<contactref element="U7" pad="4_TIMEPULSE"/>
</signal>
<signal name="GPS-RX">
<contactref element="U7" pad="3_RXD1"/>
<contactref element="U6" pad="27"/>
</signal>
<signal name="GPS-TX">
<contactref element="U7" pad="2_TXD1"/>
<contactref element="U6" pad="28"/>
</signal>
<signal name="GPS-EN">
<contactref element="R5" pad="2"/>
<contactref element="Q2" pad="1"/>
<contactref element="U6" pad="2"/>
</signal>
<signal name="SWCLK">
<contactref element="U6" pad="22"/>
<contactref element="J1" pad="3"/>
</signal>
<signal name="SWDIO">
<contactref element="U6" pad="21"/>
<contactref element="J1" pad="4"/>
</signal>
<signal name="N$3">
<contactref element="U4" pad="1"/>
<contactref element="L1" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="L1" pad="2"/>
<contactref element="U4" pad="6"/>
</signal>
<signal name="N$11">
</signal>
<signal name="N$2">
<contactref element="LED1" pad="A"/>
<contactref element="R6" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="U6" pad="14"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="VBATT_SENSE">
<contactref element="R3" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="CM3" pad="1"/>
<contactref element="U6" pad="12"/>
</signal>
<signal name="VBATT">
<contactref element="R3" pad="2"/>
<contactref element="U4" pad="5"/>
<contactref element="C6" pad="1"/>
<contactref element="U4" pad="4"/>
<contactref element="J3" pad="1"/>
</signal>
<signal name="N$8">
</signal>
<signal name="N$20">
</signal>
<signal name="N$24">
</signal>
<signal name="N$25">
</signal>
<signal name="TCXO-EN">
<contactref element="U2" pad="1"/>
<contactref element="U6" pad="18"/>
</signal>
<signal name="SCL">
<contactref element="IC1" pad="4"/>
<contactref element="U6" pad="19"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="SDA">
<contactref element="IC1" pad="5"/>
<contactref element="U6" pad="20"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$36">
<contactref element="LM2" pad="1"/>
<contactref element="IC1" pad="10"/>
<contactref element="CM1" pad="1"/>
</signal>
<signal name="OSC_OUT">
<contactref element="IC1" pad="2"/>
<contactref element="U2" pad="3"/>
</signal>
<signal name="N$1">
<contactref element="LM2" pad="2"/>
<contactref element="CM2" pad="1"/>
<contactref element="CM4" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="7"/>
<contactref element="Q1" pad="3"/>
<contactref element="CM5" pad="1"/>
</signal>
<signal name="OSC_EN">
<contactref element="Q1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="U6" pad="3"/>
</signal>
<signal name="N$9">
<contactref element="CM4" pad="2"/>
<contactref element="PAD1" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
