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The Softrock group buy parts are SI570CAC000141DG [CMOS spec 10 - 160MHz] and SI570BBC000141DG [LVDS spec 10 - 215MHz]. Anyone <STRONG>really</STRONG> planning to use the Si570 at 1126MZ should set up a SI570BB<STRONG><U>A</U></STRONG>xxxxxxDG at 1126MHz those 'A' parts are spec at 10-945MHz, 970 - 1134, and 1213 - 1417.5MHz. Silicon Labs will send out 2 free samples in about 3 weeks time. The Softrock parts will function but may not meet all noise and drift specs. Also see US Patent US7288998 for info beyond the datasheets.<BR><BR>If anyone is interested in calculators for the setup values in the Softrock parts I have several files in VB6 and Excel-VBA in the Yahoo Groups file section<BR><A href="http://groups.yahoo.com/group/softrock40/files/K9IVB-Si570/">http://groups.yahoo.com/group/softrock40/files/K9IVB-Si570/</A><BR>All of these files have N1 = 1 disabled for code simplicity, thus will not handle frequencies above about 440 MHz. If there is any interest I could add the code to one or more programs - or just use the Silicon Labs 570EVB software.<BR> <BR>73, Dick K9IVB<BR><BR>> From: phil@pharman.org<BR>> To: johan.maas@hetnet.nl<BR>> Date: Wed, 2 Jul 2008 20:22:07 +0800<BR>> CC: hpsdr@lists.hpsdr.org<BR>> Subject: Re: [hpsdr] si570<BR>> <BR>> ***** High Performance Software Defined Radio Discussion List *****<BR>> <BR>> I've been using Bill's code to set up the Si570 2nd Local Oscillator <BR>> (1126MHz) on Cyclops from Ozy. It works fine and I just call his <BR>> Ozy-Si570.exe file within the initozy11.bat like this:<BR>> <BR>> Ozy-Si570 1126<BR>> <BR>> A really neat way of controlling the Si570 via the I2C faciltiy on <BR>> Ozy/Atlas.<BR>> <BR>> 73's Phil...VK6APH<BR>> <BR>> <BR>> <BR>> ----- Original Message ----- <BR>> From: 'Bill Tracey' <bill@ewjt.com><BR>> To: 'Johan Maas' <johan.maas@hetnet.nl><BR>> Cc: <hpsdr@lists.hpsdr.org><BR>> Sent: Wednesday, July 02, 2008 10:34 AM<BR>> Subject: Re: [hpsdr] si570<BR>> <BR>> <BR>> > ***** High Performance Software Defined Radio Discussion List *****<BR>> ><BR>> > Hello Johan,<BR>> ><BR>> > The code in<BR>> > SVN<BR>> > (svn://206.216.146.154/svn/repos_sdr_hpsdr/trunk/KD5TFD/Ozy-Si570) is<BR>> > just a quick and dirty command line program to send I2C commands out<BR>> > Ozy's I2C bus to control one of the Si570's the SoftRock guys did a<BR>> > group buy on. I don't have any plan to do a board for this - I just<BR>> > dead bugged it on to an existing experimenter board I had on my Atlas bus.<BR>> ><BR>> > The code's under the GPL so feel free to use it under those terms.<BR>> ><BR>> > Regards,<BR>> ><BR>> > Bill (kd5tfd)<BR>> ><BR>> > At 11:14 AM 7/1/2008, you wrote:<BR>> >>Hi Bill,<BR>> >><BR>> >>I saw in svn a si570 project.<BR>> >><BR>> >>Are you planning to create a si570 board controlled via ozy?<BR>> >><BR>> >>Can you give me an update?<BR>> >><BR>> >>73 Johan PA3GSB<BR>> >><BR>> >>No virus found in this outgoing message.<BR>> >>Checked by AVG.<BR>> >>Version: 8.0.101 / Virus Database: 270.4.3/1528 - Release Date: 1-7-2008 <BR>> >>7:26<BR>> ><BR>> ><BR>> > _______________________________________________<BR>> > HPSDR Discussion List<BR>> > To post msg: hpsdr@hpsdr.org<BR>> > Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org<BR>> > HPSDR web page: http://hpsdr.org<BR>> > Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/<BR>> <BR>> <BR>> --------------------------------------------------------------------------------<BR>> <BR>> <BR>> <BR>> No virus found in this incoming message.<BR>> Checked by AVG.<BR>> Version: 8.0.101 / Virus Database: 270.4.3/1528 - Release Date: 7/1/2008 <BR>> 7:26 AM<BR>> <BR>> _______________________________________________<BR>> HPSDR Discussion List<BR>> To post msg: hpsdr@hpsdr.org<BR>> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org<BR>> HPSDR web page: http://hpsdr.org<BR>> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/<BR><BR><br /><hr />Making the world a better place one message at a time. <a href='http://www.imtalkathon.com/?source=EML_WLH_Talkathon_BetterPlace' target='_new'>Check out the i'm Talkathon.</a></body>
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