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Subject: Homemade USB 2 Harddrive MP3 Player Schematics
Date: Wed, 6 Oct 2004 12:33:54 +0800
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Homemade USB 2 Harddrive MP3 Player =
Schematics</TITLE>
<META=20
content=3D"Homemade harddrive MP3 player homebuilt diskdrive MP3 player =
USB interface USB2 USB 2.0 USB Drive audio player stereo high capacity =
do it yourself mp3 player kit software sourcecode hardware schematic =
circuit diagram"=20
name=3Dkeywords><!-- InstanceBegin =
template=3D"Templates/MP3CSStemplate.dwt" =
codeOutsideHTMLIsLocked=3D"false" --><!-- InstanceBeginEditable =
name=3D"head" --><!-- InstanceEndEditable --><!-- InstanceBeginEditable =
name=3D"doctitle" --><!-- InstanceEndEditable -->
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1"><LINK=20
href=3D"http://www.frankvh.com/mp3player/mp3style.css" type=3Dtext/css=20
rel=3Dstylesheet>
<META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR></HEAD>
<BODY>
<DIV id=3DBannerLeft><IMG height=3D61 =
src=3D"http://www.frankvh.com/mp3player/mp3.gif"=20
width=3D175 align=3Dmiddle> </DIV>
<DIV id=3DBannerBody>Homebuilt MP3 Player </DIV>
<DIV id=3DBottomBanner>A do-it-yourself high-capacity harddisk-based MP3 =
Player=20
with USB 2.0 </DIV>
<DIV id=3DLeftMenu>
<P><A class=3Dmenu =
href=3D"http://www.frankvh.com/mp3player/index.html">Home</A></P>
<P><A class=3Dmenu=20
href=3D"http://www.frankvh.com/mp3player/hwdetails.htm">Hardware<BR>Descr=
iption</A></P>
<P><A class=3Dmenu=20
href=3D"http://www.frankvh.com/mp3player/schematics.htm">Schematics=20
&<BR>PCB</A></P>
<P><A class=3Dmenu=20
href=3D"http://www.frankvh.com/mp3player/software.htm">Software</A></P>
<P><A class=3Dmenu =
href=3D"http://www.frankvh.com/mp3player/kits.htm">Kits=20
&<BR>Parts</A></P>
<P><A class=3Dmenu=20
href=3D"http://www.frankvh.com/mp3player/driveselection.htm">Drive=20
Selection</A></P>
<P><A class=3Dmenu =
href=3D"http://www.frankvh.com/mp3player/usb2.htm">USB=20
2.0</A></P>
<P><A class=3Dmenu=20
href=3D"http://www.frankvh.com/mp3player/buildnotes.htm">Construction<BR>=
Notes</A></P>
<P><A class=3Dmenu =
href=3D"http://www.frankvh.com/mp3player/createmp3s.htm">Creating=20
MP3s</A></P>
<P><A class=3Dmenu =
href=3D"http://www.frankvh.com/mp3player/news.htm">Latest=20
News</A></P>
<P><A class=3Dmenu=20
href=3D"http://www.frankvh.com/mp3player/contact.htm">Contact</A></P>
<HR color=3D#000000 noShade SIZE=3D1>
<P> </P></DIV>
<DIV id=3DPageBody><!-- InstanceBeginEditable name=3D"EditRegion1" -->
<H2>Schematics and PCB Layout</H2>
<H3>Schematics</H3>
<P>The schematics (circuit diagrams) for the player are across three =
sheets. The=20
first contains the power supplies. The second contains the Atmel AVR =
processor,=20
USB interface, and IDE connectors. The third contains the STA013 codec =
and some=20
miscellaneous circuits.</P>
<TABLE width=3D"75%" border=3D1>
<TBODY>
<TR>
<TD>
<DIV align=3Dcenter><A=20
href=3D"http://www.frankvh.com/mp3player/Schematic_page1.pdf"=20
target=3D_top>sheet 1</A></DIV></TD>
<TD>
<DIV align=3Dcenter><A=20
href=3D"http://www.frankvh.com/mp3player/Schematic_page2.pdf"=20
target=3D_top>sheet 2</A></DIV></TD>
<TD>
<DIV align=3Dcenter><A=20
href=3D"http://www.frankvh.com/mp3player/Schematic_page3.pdf"=20
target=3D_top>sheet 3</A></DIV></TD></TR></TBODY></TABLE>
<P>If you're planning on building a player, become familiar with the =
schematics.=20
They provide you with essential information such as:</P>
<UL>
<LI>Component values=20
<LI>Power-supply voltages=20
<LI>General circuit operation. </LI></UL>
<P>You will find this information helpful when powering up your MP3 =
player for=20
the first time. You will also get much more satisfaction from building =
the=20
player if you understand, at least approximately, how it works.</P>
<P>There is a minor error on sheet 2. The schematic shows U8 as being a=20
SFH5110-36. It has since been changed to a Vishay TSOP1238. Current kits =
ship=20
with the TSOP1238 part. I will update the schematic at some point. See =
the <A=20
href=3D"http://www.frankvh.com/mp3player/news.htm#29Aug2004">Latest News =
page, 29=20
August 2004 entry</A>, for details on how to wire up the TSOP1238.</P>
<P> </P>
<H3>PCB Layout</H3>
<P>The MP3 player printed circuit board is double-sided, 4 x 5 inches, =
oriented=20
to mount on a 3.5" diskdrive. There are three sheets here for the PCB =
layout:=20
top copper layout, bottom copper layout, and top silkscreen overlay. =
</P>
<TABLE width=3D"75%" border=3D1>
<TBODY>
<TR>
<TD>
<DIV align=3Dcenter><A=20
href=3D"http://www.frankvh.com/mp3player/PCB_top_copper.pdf" =
target=3D_top>top=20
copper</A></DIV></TD>
<TD>
<DIV align=3Dcenter><A=20
href=3D"http://www.frankvh.com/mp3player/PCB_bottom_copper.pdf"=20
target=3D_top>bottom copper</A></DIV></TD>
<TD>
<DIV align=3Dcenter><A=20
href=3D"http://www.frankvh.com/mp3player/PCB_silkscreen.pdf"=20
target=3D_top>silkscreen =
overlay</A></DIV></TD></TR></TBODY></TABLE>
<P> </P>
<P>All files are in Adobe PDF format. If you can't read the PDFs, get =
the <A=20
href=3D"http://www.adobe.com/" target=3D_top>free viewer =
here</A></P><!-- InstanceEndEditable -->
<HR color=3D#0000cc noShade>
<TABLE width=3D"100%" border=3D0>
<TBODY>
<TR>
<TD width=3D"30%"><FONT face=3D"Arial, Helvetica, sans-serif" =
size=3D2><A=20
class=3Dmenu =
href=3D"http://www.frankvh.com/mp3player/index.html">MP3 Player=20
Home</A></FONT></TD>
<TD width=3D"70%">
<DIV align=3Dright><FONT face=3D"Arial, Helvetica, sans-serif" =
size=3D2>These=20
pages copyright =A9 Frank Van Hooft 2004=20
</FONT></DIV></TD></TR></TBODY></TABLE></DIV><!-- InstanceEnd =
--></BODY></HTML>
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