{"id":13,"date":"2008-07-10T22:44:12","date_gmt":"2008-07-10T13:44:12","guid":{"rendered":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=13"},"modified":"2008-07-10T22:44:12","modified_gmt":"2008-07-10T13:44:12","slug":"dsd2spdif-%e3%83%87%e3%82%b7%e3%83%a1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%bb%e3%83%95%e3%82%a3%e3%83%ab%e3%82%bf","status":"publish","type":"post","link":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=13","title":{"rendered":"DSD2S\/PDIF, \u30c7\u30b7\u30e1\u30fc\u30b7\u30e7\u30f3\u30fb\u30d5\u30a3\u30eb\u30bf"},"content":{"rendered":"<p>\u30c7\u30b7\u30e1\u30fc\u30b7\u30e7\u30f3\u30fb\u30d5\u30a3\u30eb\u30bf\u57fa\u677f\u3092\u5b9f\u88c5\u5de5\u5834\u3067\u8077\u4eba\u3055\u3093\u306b\u5b9f\u88c5\u3057\u3066\u3082\u3089\u3044\u307e\u3057\u305f\u3002\u4eca\u56de\u306eFPGA\u306fSDRAM_DAI\u306e\u3082\u306e\u3088\u308a\u3082\u5927\u304d\u306a\u3001Spartan3 XC3S200\u3068\u3044\u3046\u54c1\u7a2e\u3092\u4f7f\u3044\u307e\u3059\uff08\u3061\u306a\u307f\u306b\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u4e92\u63db\u3067\u3059\uff09\u3002<\/p>\n<p><a href=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image200807\/maspro_deci.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" style=\"float: left;\" src=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image200807\/th_maspro_deci.jpg\" alt=\"\" width=\"283\" height=\"320\" \/><\/a><\/p>\n<p>\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u304b\u5426\u304b\u3001\u7d50\u69cb\u8ff7\u3044\u307e\u3057\u305f\u304c\u3001Wadia\u306e\u6700\u65b0SACD\u30d7\u30ec\u30fc\u30e4\u30fc\u304c\u3001SACD\u518d\u751f\u6642\u306b88.2kHz\u306eS\/PDIF\u30c7\u30b8\u30bf\u30eb\u30a2\u30a6\u30c8\u3092\u88c5\u5099\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3001SACD\u306b\u304a\u3044\u3066\u8457\u4f5c\u6a29\u4fdd\u8b77\u306b\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u306a\u3044\u30c7\u30b8\u30bf\u30eb\u30a2\u30a6\u30c8\u3092\u51fa\u3057\u3066\u3082\uff08\u4e00\u5fdc\u30b3\u30d4\u30fc\u7981\u6b62\u30d5\u30e9\u30b0\u3092\u7acb\u3066\u3066\u306f\u3044\u307e\u3059\uff09\u4e0d\u6b63\u7af6\u4e89\u9632\u6b62\u6cd5\u306b\u62b5\u89e6\u3057\u306a\u3044\u306e\u3060\u308d\u3046\u3068\u5224\u65ad\u3057\u3001\u5c11\u91cf\u3067\u3059\u304c\u307b\u3057\u3044\u65b9\u306b\u304a\u9812\u3051\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u52d5\u4f5c\u78ba\u8a8d\u306fPIONEER\u306eDV-S757A\u3068\u3044\u3046\u30e6\u30cb\u30d0\u30fc\u30b5\u30eb\u30d7\u30ec\u30fc\u30e4\u30fc\u3067\u884c\u3044\u307e\u3057\u305f\u3002\u5fc5\u8981\u306a\u4fe1\u53f7\u306f\u3001DSD\u306e\u30d3\u30c3\u30c8\u30af\u30ed\u30c3\u30af\uff0864fs\uff09\u3001L\/R\u305d\u308c\u305e\u308c\u306eDSD\u4fe1\u53f7\u3001\u305d\u3057\u3066DSD\u306e\u30de\u30b9\u30bf\u30af\u30ed\u30c3\u30af\uff08768fs\uff09\u3067\u3059\uff08fs=44.1kHz\uff09\u3002<\/p>\n<p>DSD\u30de\u30b9\u30bf\u30af\u30ed\u30c3\u30af\u306f\u3001DSD\u30d3\u30c3\u30c8\u30af\u30ed\u30c3\u30af\u306b\u540c\u671f\u3057\u305f768fs\u3067\u3042\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059(33.8688MHz)\u3002\u3061\u306a\u307f\u306bDV-S757A\u3067\u306f\u3001DSD\u306e\u30c7\u30b3\u30fc\u30c9LSI\u3067\u3042\u308bSONY\u306eCXD2753R\u3068\u3044\u3046\u30c1\u30c3\u30d7\u304c\u3001\u57fa\u672c\u30af\u30ed\u30c3\u30af\u3068\u3057\u3066768fs\u3092\u53d7\u3051\u53d6\u308a\u3001\u30d1\u30b9\u30fb\u30b9\u30eb\u30fc\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u305f\u3060\u3001CXD2753R\u3092\u642d\u8f09\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u6a5f\u7a2e\u3067DSD\u30de\u30b9\u30bf\u30af\u30ed\u30c3\u30af\u304c768fs\u3067\u3042\u308b\u3068\u3044\u3046\u4fdd\u8a3c\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4e0a\u8a184\u672c\u306e\u4fe1\u53f7\u3092\u53d6\u308a\u51fa\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3042\u308c\u3070\u3001\u30c7\u30b3\u30fc\u30c0LSI\u304cCXD2751Q, 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target=\"_blank\">\u56de\u8def\u56f3<\/a><\/li>\n<li><a href=\"http:\/\/fpga.cool.coocan.jp\/electrart\/decimation_pcb1.jpg\" target=\"_blank\">\u90e8\u54c1\u9762\u30d1\u30bf\u30fc\u30f3\u56f3<\/a><\/li>\n<li><a href=\"http:\/\/fpga.cool.coocan.jp\/electrart\/decimation_doc1.pdf\" target=\"_blank\">\u53d6\u6271\u8aac\u660e\u66f8<\/a><\/li>\n<\/ul>\n<p>\u00a0<a href=\"http:\/\/fpga.cool.coocan.jp\/electrart\/tokushou.html\" target=\"_self\">\u7279\u5b9a\u5546\u53d6\u5f15\u306b\u95a2\u3059\u308b\u6cd5\u5f8b\u306b\u57fa\u3065\u304f\u8868\u793a\u3001\u306a\u3089\u3073\u306b\u500b\u4eba\u60c5\u5831\u4fdd\u8b77\u30dd\u30ea\u30b7\u30fc<\/a><\/p>\n<p>\u30ef\u30a4\u30e4\u30fc\u30cf\u30fc\u30cd\u30b9\u4ed8\u304d\u30011\u30bb\u30c3\u30c812,000\u5186\u3067\u3059\uff08DIP 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