Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mg04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 5653A380000A1; Fri, 3 Aug 2012 12:32:14 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SxKlo-0006NR-Ez for rs_out_1@blacksheep.org; Fri, 03 Aug 2012 17:30:36 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SxKlo-0006NI-2T for rsgb_lf_group@blacksheep.org; Fri, 03 Aug 2012 17:30:36 +0100 Received: from moutng.kundenserver.de ([212.227.126.187]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SxKlm-0003iP-JA for rsgb_lf_group@blacksheep.org; Fri, 03 Aug 2012 17:30:34 +0100 Received: from [192.168.2.104] (pD9522477.dip.t-dialin.net [217.82.36.119]) by mrelayeu.kundenserver.de (node=mrbap1) with ESMTP (Nemesis) id 0Lpxfr-1TSFby1uNj-00f6ky; Fri, 03 Aug 2012 18:30:33 +0200 Message-ID: <501BFCA8.2010401@legal-medicine.de> Date: Fri, 03 Aug 2012 18:30:32 +0200 From: pws User-Agent: Mozilla/5.0 (X11; Linux i686; rv:13.0) Gecko/20120601 Thunderbird/13.0 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org X-Provags-ID: V02:K0:nmNdMBmSx22AuPuEHvRAIEwtv//Zfn2S2yFGltrvZ28 DeSdKrcwQOUFFqs+/ldODQAJn48In/Zw18RfhtQcr6k/DNxR5Z Wx+itCax44JQP3Mf0R7wWdxjeFEd821sAv5vTl97dahTACEMWL haGkp4flSRURN0TBAHB6g49Cj5nSaal49OIyQGWw3nBOa8920t 79VrVoOsaVG3MihoyjIr9rnaBSLVafqnYUrxT9pzYCOpMlRGIk B6wGQ14BJM3FyUsYZBy9OYAvAwVc4yykEnovmPYSZAZwaGeAF0 nbUvV2UNsZrJh28qO/Rsscqt/E88gez0rNSO33x6AmQjYhJZDH WMjiQGT8mgNIX6se3Ag7oma/5dCD8Rw4Ncqq+WpUm X-Spam-Score: -0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi, I found some 10 MHz double-OCXOs in the junk-box and I need two 100 kHz LO-signals at 90deg. of phase shift. The idea is using 74HC390 for dividing down to 400 kHz (25:1) feeding a phase shifting network consisting of two flip-flops (4:1), commonly found at SDRs. [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.227.126.187 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record X-Scan-Signature: 59677119386dcf9f1872cb454dc1331d Subject: LF: 100 kHz I/Q Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:435043584:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60cc501bfd0e6f9b X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi, I found some 10 MHz double-OCXOs in the junk-box and I need two 100 kHz LO-signals at 90deg. of phase shift. The idea is using 74HC390 for dividing down to 400 kHz (25:1) feeding a phase shifting network consisting of two flip-flops (4:1), commonly found at SDRs. Q: Does that work or could I run into trouble due to the non-symmetrical output train from the 25:1 dividers? May be a stupid question but it's ~40 years ago when I was busy doing nasty things with flip-flops [^_^] Peter, df3lp