{"id":1603,"date":"2018-10-14T16:35:21","date_gmt":"2018-10-14T07:35:21","guid":{"rendered":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=1603"},"modified":"2018-10-17T06:22:43","modified_gmt":"2018-10-16T21:22:43","slug":"ssdac","status":"publish","type":"post","link":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=1603","title":{"rendered":"SSDAC"},"content":{"rendered":"

\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u6280\u8853\u8a8c10\u6708\u53f7\u306b\u63b2\u8f09\u3055\u308c\u305f “SSDAC” \u304c\u8208\u5473\u6df1\u304b\u3063\u305f\u306e\u3067\u3001\u540c\u8a8c11\u6708\u53f7\u4ed8\u9332DVD\u306b\u53ce\u9332\u3055\u308c\u305f\u8a2d\u8a08\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n

SSDAC\u304c\u300c\u6642\u9593\u8ef8\u300d\u306b\u5bfe\u3057\u3066\u975e\u5e38\u306b\u7406\u60f3\u7684\u306a\u6027\u8cea\u3092\u793a\u3059\u306e\u306f\u8a18\u4e8b\u4e2d\u304b\u3089\u3082\u660e\u767d\u3067\u3059\u304c\u3001\u300c\u5468\u6ce2\u6570\u8ef8\u300d\u306f\u4e00\u4f53\u3069\u306e\u3088\u3046\u306a\u6027\u8cea\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u305f\u304b\u3063\u305f\u3068\u3044\u3046\u306e\u3082\u4e00\u3064\u306e\u7406\u7531\u3067\u3059\u3002<\/p>\n

VHDL\u3067\u8a18\u8f09\u3055\u308c\u305f\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092ModelSim Altera Edition\u3092\u4f7f\u7528\u3057\u3001\u300c\u540d\u76ee\u4e0a\u300d48kHz\u306e\u30c7\u30fc\u30bf\u3092\u5165\u529b\u30d9\u30af\u30bf\u3068\u3057\u3066 “SSDAC” \u306b\u55b0\u308f\u305b\u3066\u3001\u305d\u306e\u51fa\u529b\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u3066WaveSpectra\u306b\u3066\u30e2\u30cb\u30bf\u3057\u3066\u307f\u307e\u3057\u305f\u203b\u3002<\/p>\n

\u6700\u521d\u306b\u30a4\u30f3\u30d1\u30eb\u30b9\u5fdc\u7b54\u306e\u6642\u9593\u8ef8\u306b\u304a\u3051\u308b\u6319\u52d5\u3092\u3001ModelSim\u306e\u6ce2\u5f62\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u7d50\u679c\u3092\u3082\u3063\u3066\u793a\u3057\u307e\u3059\u3002<\/p>\n

\"\"<\/p>\n

\u4e0a\u304c\u5165\u529b\u3067\u4e0b\u304c\u51fa\u529b\u3067\u3059\u304c\u3001\u4e00\u5207\u306e\u300c\u30b7\u30e5\u30fc\u30c8\u300d\u304c\u4ed8\u304d\u307e\u305b\u3093\u3002\u898b\u4e8b\u306b”NOSDAC” \u3092\u5f77\u5f7f\u3068\u3055\u305b\u307e\u3059\u3002<\/p>\n

\u6b21\u306b\u300110kHz\u306e\u30b5\u30a4\u30f3\u6ce2\u3092\u5909\u63db\u3057\u305f\u5834\u5408\u306e\u51fa\u529b\u3092\u300c\u5468\u6ce2\u6570\u8ef8\u300d\u3067\u898b\u305f\u3068\u304d\u306e\u69d8\u5b50\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

\"\"<\/p>\n

\u7d9a\u3044\u3066\u3044\u308f\u3086\u308b\u300cf \u7279\u300d\u3002\u3044\u305a\u308c\u3082\u5bfe\u6570\u8868\u793a\u3067\u53f3\u7aef\u306e\u5468\u6ce2\u6570\u3092(48kHz\/2)\u00d764=1536kHz\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\"<\/p>\n

\u5b9f\u6a5f\u52d5\u4f5c\u306b\u306f\u300116bit\u30d1\u30e9\u30ec\u30eb\u5165\u529b\u306e\u5de5\u696d\u7528\u306eDAC IC\u304c\u8f09\u3063\u305f\u5c02\u7528\u57fa\u677f\u3092\u8cfc\u5165\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u79c1\u7684\u306b\u306f\u8a2d\u8a08\u8005\u306e\u610f\u56f3\u3068\u306f\u96e2\u308c\u3066\u3057\u307e\u3046\u306e\u3092\u899a\u609f\u3067\u3001\u3053\u308c\u3092DSD\u5909\u63db\u3057\u3066\u624b\u6301\u3061\u306eUSB\u57fa\u677f+DSD1794A\u306a\u3069\u3067\u97f3\u306e\u50be\u5411\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n

\u53ef\u8074\u5e2f\u57df\u5916\u306e\u30b9\u30d7\u30ea\u30a2\u30b9\u304c\u97f3\u306b\u3069\u3046\u5f71\u97ff\u3059\u308b\u304b\u3067\u3059\u304c\u3001\u524d\u51fa\u306e\u30de\u30eb\u30c1\u30d3\u30c3\u30c8DAC\u3068DSD\u3068\u3067\u306f\u307e\u305f\u304b\u306a\u308a\u9055\u3063\u3066\u304f\u308b\u3093\u3067\u3057\u3087\u3046\u306d\u3002DSD\u5909\u63db\u306e\u97f3\u306f\u65b0\u6f5f\u7cbe\u5bc6\u306e\u30d5\u30eb\u30a8\u30f3\u30b7\u30fcDAC\u7684\u306a\u97f3\u50be\u5411\u306b\u306a\u308b\u4e88\u611f\u304c\u3057\u307e\u3059\u3002<\/p>\n

\u203b3\u6b21\u30b9\u30d7\u30e9\u30a4\u30f3\u95a2\u6570\u306e\u8a2d\u5b9a\u3092\u9078\u629e\u3057\u3066\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u304d\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u4e07\u4e00\u7d50\u679c\u306b\u9593\u9055\u3044\u304c\u3042\u308b\u3088\u3046\u3067\u3057\u305f\u3089\u3001\u3054\u6307\u6458\u3044\u305f\u3060\u3051\u308c\u3070\u8a02\u6b63\u3044\u305f\u3057\u307e\u3059\u3002<\/span><\/p>\n

SSDAC\u306b\u8208\u5473\u306e\u3042\u308b\u65b9\u306f\u30c8\u30e9\u6280\u3092\u5165\u624b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u4ee5\u4e0b\u3001\u6a29\u5229\u8005\u69d8\u306e\u8457\u4f5c\u6a29\u8868\u793a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

===========
\n\u8457\u4f5c\u6a29
\n===========
\n\u30fbSSDAC24642\u30bd\u30fc\u30b9\u30d7\u30ed\u30b0\u30e9\u30e0\u306f \u5c0f\u6797\u82b3\u76f4 \u304c\u8457\u4f5c\u6a29\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002
\n\u30fb\u500b\u4eba\u306e\u7814\u7a76\u76ee\u7684\u306b\u306f\u3001\u4fee\u6b63\u3001\u6539\u9020\u306a\u3069\u81ea\u7531\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002
\n\u30fb\u767a\u8868\u3055\u308c\u308b\u969b\u306f\u3053\u306e\u8457\u4f5c\u6a29\u8868\u793a\u90e8\u5206\u3092\u8868\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002
\n\u30fb\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5168\u90e8\u3082\u3057\u304f\u306f\u4e00\u90e8\u3092\u88fd\u54c1\u306b\u7d44\u307f\u8fbc\u3093\u3060\u308a\u8ca9\u58f2\u3059\u308b\u306a\u3069\u306e\u5546\u696d\u7684\u5229\u7528\u306f\u304a\u3084\u3081\u304f\u3060\u3055\u3044\u3002
\n\u30fb\u672c\u88fd\u54c1SSDAC\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u88dc\u9593\u6280\u8853\u306f\u3001\u5c0f\u6797\u82b3\u76f4\u306b\u3088\u308a\u767a\u660e\u3055\u308cSLDJ\u5408\u540c\u4f1a\u793e\u306b\u3088\u308a\u73fe\u5728\u7279\u8a31\u51fa\u9858\u4e2d\u3067\u3059\u3002
\n\u30fb\u672c\u30ad\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u56de\u8def\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u500b\u4eba\u7684\u4f7f\u7528\u306b\u9650\u308a\u81ea\u7531\u306b\u4fee\u6b63\u3001\u6539\u9020\u304c\u3067\u304d\u307e\u3059\u3002
\n\u30fb\u672c\u30ad\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u56de\u8def\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u5546\u696d\u7684\u5229\u7528\u306b\u3064\u3044\u3066\u306f\u5225\u9014\u5951\u7d04\u304c\u5fc5\u8981\u3067\u3059\u3002higon@nifty.com\u307e\u3067\u3054\u9023\u7d61\u304f\u3060\u3055\u3044\u3002<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u6280\u8853\u8a8c10\u6708\u53f7\u306b\u63b2\u8f09\u3055\u308c\u305f “SSDAC” \u304c\u8208\u5473\u6df1\u304b\u3063\u305f\u306e\u3067\u3001\u540c\u8a8c11\u6708\u53f7\u4ed8\u9332DVD\u306b\u53ce\u9332\u3055\u308c\u305f\u8a2d\u8a08\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3044\u307e\u3057\u305f\u3002 SSDAC\u304c\u300c\u6642\u9593\u8ef8\u300d\u306b\u5bfe\u3057\u3066\u975e\u5e38 … “SSDAC” \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1603","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1603"}],"version-history":[{"count":14,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1603\/revisions"}],"predecessor-version":[{"id":1618,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1603\/revisions\/1618"}],"wp:attachment":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1603"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}