{"id":320,"date":"2014-01-08T22:05:13","date_gmt":"2014-01-08T22:05:13","guid":{"rendered":"http:\/\/warc.org.uk\/?page_id=320"},"modified":"2015-01-22T16:45:27","modified_gmt":"2015-01-22T16:45:27","slug":"the-cdg2000-synthesizer","status":"publish","type":"page","link":"https:\/\/warc.org.uk\/?page_id=320","title":{"rendered":"The CDG2000 Synthesizer"},"content":{"rendered":"

The CDG2000 Synthesizer<\/b><\/p>\n

This is the frequency synthesizer that generates to Receive Mixer Local Oscillator signal. The output is a logic level signal designed to drive the logic input of the H-mode mixer on the front end board.<\/p>\n

Here you can download an early version of the article submitted to RadCom, the PCB artwork, pictures and supporting material. The one listed below has all the text but none of the pictures ( quick to download ).<\/p>\n

There is a\u00a0spreadsheet<\/a>\u00a0that shows the configuration data and how it is produced. Refer to the\u00a0article<\/a>\u00a0and the controller notes to understand it. There is a\u00a0variant<\/a>\u00a0of this used by Harold W4ZCB that uses different division ratios ( requiring minor wiring changes to the synth board ).\u00a0\u00a0Note you MUST have the analysis toolkit loaded into Excel before you use the spreadsheet as it uses the hex conversion functions of VB. To check, see ‘add-ins’ under ‘tools’ of Excel 97.<\/i><\/p>\n\n\n\n\n\n\n\n\n
Early version of article\u00a0(without pictures)<\/a><\/td>\nHi res picture of top of board<\/a><\/td>\nHi res picture of bottom of board<\/a><\/td>\n<\/tr>\n
S<\/a>ynth schematic page 1 of 3<\/a><\/td>\nS<\/a>ynth schematic page 2 of 3<\/a><\/td>\nSynth schematic page 3 of 3<\/a><\/td>\n<\/tr>\n
<\/td>\nParts List<\/a><\/td>\nConfiguration Data<\/a><\/td>\n<\/tr>\n
PCB Top component layout<\/a><\/td>\nPCB Bottom component layout<\/a><\/td>\n<\/td>\n<\/tr>\n
PCB Bottom tracking<\/a><\/td>\nPCB Bottom tracking reversed<\/a><\/td>\n<\/td>\n<\/tr>\n
Early phase noise plot<\/a><\/td>\nVCO performance data<\/a><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

PCB CAD Download Synth<\/a><\/p>\n

Return to CDG2000 Home Page<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

The CDG2000 Synthesizer This is the frequency synthesizer that generates to Receive Mixer Local Oscillator signal. The output is a logic level signal designed to drive the logic input of the H-mode mixer on the front end board. Here you can download an early version of the article submitted to\u2026<\/p>\n

Continue reading<\/i><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":81,"menu_order":0,"comment_status":"open","ping_status":"open","template":"templates\/template-page-with-intro.php","meta":{"footnotes":""},"class_list":["post-320","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/warc.org.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=320"}],"version-history":[{"count":24,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/320\/revisions"}],"predecessor-version":[{"id":69713,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/320\/revisions\/69713"}],"up":[{"embeddable":true,"href":"https:\/\/warc.org.uk\/index.php?rest_route=\/wp\/v2\/pages\/81"}],"wp:attachment":[{"href":"https:\/\/warc.org.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}