{"id":366,"date":"2012-09-18T10:48:18","date_gmt":"2012-09-18T01:48:18","guid":{"rendered":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=366"},"modified":"2012-09-18T10:48:18","modified_gmt":"2012-09-18T01:48:18","slug":"%e5%b0%91%e3%81%97%e3%81%a5%e3%81%a4%e3%81%a7%e3%81%99%e3%81%8c%e9%80%b2%e3%82%93%e3%81%a7%e3%81%84%e3%81%be%e3%81%99","status":"publish","type":"post","link":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=366","title":{"rendered":"\u5c11\u3057\u3065\u3064\u3067\u3059\u304c\u9032\u3093\u3067\u3044\u307e\u3059"},"content":{"rendered":"

PCM2DSD\u5909\u63db\u56de\u8def\u3067\u3059\u304c\u3001ALtera\u306eCyclon3\u30c7\u30d0\u30a4\u30b9(EP3C25E)\u306b\u683c\u7d0d\u3057\u305f\u56de\u8def\u3068\u5168\u304f\u540c\u3058\u56de\u8def\u3092Xilinx\u306eSpartan6(XC6SLX9)\u306b\u3082\u683c\u7d0d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u4eca\u306e\u57fa\u677f\u306b\u8f09\u305b\u305fEP3C25E\u306f\u9ad8\u30b9\u30da\u30c3\u30af\u30fb\u9ad8\u30b3\u30b9\u30c8\u306a\u3060\u3051\u3042\u3063\u3066\u3069\u3046\u3084\u3089\u30aa\u30fc\u30d0\u30fc\u30fb\u30af\u30aa\u30ea\u30c6\u30a3\u30fc\u3060\u3063\u305f\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

EP3C25E\u306e\u307e\u307e\u3067\u3059\u3068\u3001\u30b3\u30b9\u30c8\u7684\u306b\u9812\u5e03\u306f\u7121\u7406\u3060\u308d\u3046\u3068\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u306e\u3067\u5e0c\u671b\u304c\u898b\u3048\u3066\u304d\u307e\u3057\u305f\u3002\u4eca\u73fe\u5728\u3001S\/PDIF\u3068I2S(\u30d5\u30a3\u30c7\u30ea\u30c3\u30af\u30b9\u65b9\u5f0fHDMI)\u5165\u529b\u7aef\u5b50\u304b\u3089\u306e\u4fe1\u53f7(PCM\u30b7\u30f3\u30b0\u30eb\u304b\u3089\u30af\u30a2\u30c3\u30c9\u307e\u3067)\u3092\u5909\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3055\u3066\u3001\u9031\u672b\u306b\u56f3\u306e\u3088\u3046\u306aDAC\u57fa\u677f\u304c\u5c4a\u304d\u307e\u3057\u305f\u3002\u00a0\u00a0 PCM1704\u306e2\u30d1\u30e9or\u5dee\u52d5\u57fa\u677f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

\"\"<\/p>\n

74##574\u30924\u500b\u8f09\u305b\u305fDSD Principle DAC\u57fa\u677f\u3067\u3059\u3002\u30c1\u30e3\u30cd\u30eb\u3042\u305f\u308a8\u500b\u306eDFF\u3092\u4f7f\u3063\u305f8TAP\u306e\u30a2\u30ca\u30ed\u30b0FIR\u30d5\u30a3\u30eb\u30bf\u306b\u3088\u3063\u3066DSD\u306e\u30ce\u30a4\u30ba\u3092\u843d\u3068\u3059\u65b9\u5f0f\u306e\u201d\u5dee\u52d5DAC”\u57fa\u677f\u3067\u3059\u3002\u30a2\u30ca\u30ed\u30b0\u90e8\u306f2\u500b\u5165\u308a\u30aa\u30da\u30a2\u30f3\u30d7\u3092\u4f7f\u3063\u305f\u30b7\u30f3\u30d7\u30eb\u3001\u304b\u3064\u898b\u6163\u308c\u305fI\/V+\u30d5\u30a3\u30eb\u30bf\u56de\u8def\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n

\u7d44\u3093\u3067\u3059\u3050\u306f\u300c\u306a\u3093\u3060\u3053\u308c\uff1f\u300d\u3068\u3044\u3046\u97f3\u304c\u3057\u307e\u3057\u305f\u304c\u3001\u30b3\u30f3\u30c7\u30f3\u30b5\u306a\u3069\u306e\u30a8\u30fc\u30b8\u30f3\u30b0\u304c\u9032\u3093\u3060\u306e\u304b\u3001\u4eca\u73fe\u5728\u306f\u5927\u5206\u3053\u306a\u308c\u3066\u304d\u3066\u3044\u307e\u3059\u3002\u65e2\u5b58\u306eDAC\u30c1\u30c3\u30d7\u3092\u4f7f\u3063\u305f\u57fa\u677f\u3067\u306f\u8074\u304f\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u97f3\u304c\u697d\u3057\u3081\u3066\u3044\u307e\u3059\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u3069\u3053\u3092\u3069\u3046\u3059\u308b\u3068\u3069\u3046\u3044\u3046\u97f3\u306b\u306a\u308b\u3001\u3068\u3044\u3063\u305f\u300c\u6c7a\u3081\u6253\u3061\u300d\u304c\u3067\u304d\u308b\u7a0b\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u4eca\u306e\u3068\u3053\u308d\u300c\u76ee\u304f\u3089\u3046\u3061\u300d\u72b6\u614b\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u666e\u6bb5\u805e\u3044\u3066\u3044\u308bDSD1794A\u306e\u3001\u3069\u3061\u3089\u304b\u3068\u3044\u3046\u3068\u8cd1\u3084\u304b\u50be\u5411\u306a\u97f3\u3068\u306f\u307e\u305f\u9055\u3063\u305f\u7f8e\u97f3(\u9f3b\u97f3\uff1f)\u3092\u8074\u304b\u305b\u3066\u304f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5358\u306b\u30b9\u30da\u30c3\u30af\u7684\u306a\u8a71\u3067\u3044\u3046\u3068\u3001\u3069\u3046\u3084\u30898TAP\u306eFIR\u3067\u306f\u30d5\u30a3\u30eb\u30bf\u30fc\u6027\u80fd\u7684\u306b\u306f\u5c11\u3057\u53b3\u3057\u3044\u3088\u3046\u3067\u3001\u30a2\u30ca\u30ed\u30b0\u6bb5\u306e\u30dd\u30b9\u30c8\u30d5\u30a3\u30eb\u30bf\u56de\u8def\u3067\u3082DSD\u306e\u9ad8\u5468\u6ce2\u30ce\u30a4\u30ba\u3092\u304d\u3061\u3093\u3068\u843d\u3068\u3057\u3066\u3084\u308b\u5fc5\u8981\u304c\u3042\u308a\u305d\u3046\u3067\u3059\u3002\u3044\u308d\u3044\u308d\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u3066\u307f\u307e\u3057\u305f\u304c\u30018TAP\u3067\u306fDSD1794A\u306b\u642d\u8f09\u3055\u308c\u3066\u3044\u308bFIR\u30d5\u30a3\u30eb\u30bf\u306b\u306f\u3001\u906e\u65ad\u6027\u80fd\u3067\u306f\u53ca\u3070\u306a\u3044\u3088\u3046\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e\u7279\u6027\u56f3\u3092\u898b\u308b\u9650\u308a\u3001\u5358\u7d14\u306a8TAP\u3067\u306f\u306a\u3044\u3088\u3046\u3067\u3001\u4f55\u3089\u304b\u306e\u5de5\u592b\u304c\u3042\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n

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16TAP\u306b\u3059\u308b\u3068\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u4e0a\u306f\u304b\u306a\u308a\u697d\u306b\u306a\u308b\u306e\u3067\u3001\u906e\u65ad\u7279\u6027\u306b\u3053\u3060\u308f\u308b\u306a\u3089\u8a66\u3057\u3066\u307f\u308b\u4fa1\u5024\u306f\u5341\u5206\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u00a0<\/p>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

PCM2DSD\u5909\u63db\u56de\u8def\u3067\u3059\u304c\u3001ALtera\u306eCyclon3\u30c7\u30d0\u30a4\u30b9(EP3C25E)\u306b\u683c\u7d0d\u3057\u305f\u56de\u8def\u3068\u5168\u304f\u540c\u3058\u56de\u8def\u3092Xilinx\u306eSpartan6(XC6SLX9)\u306b\u3082\u683c\u7d0d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u4eca\u306e\u57fa\u677f\u306b\u8f09\u305b\u305fEP3C25 … “\u5c11\u3057\u3065\u3064\u3067\u3059\u304c\u9032\u3093\u3067\u3044\u307e\u3059” \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":[11],"tags":[],"class_list":["post-366","post","type-post","status-publish","format-standard","hentry","category-hardware-debug"],"_links":{"self":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/366","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=366"}],"version-history":[{"count":0,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/366\/revisions"}],"wp:attachment":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=366"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}