{"id":1345,"date":"2026-10-25T10:00:00","date_gmt":"2026-10-25T01:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1345"},"modified":"2026-10-25T02:28:27","modified_gmt":"2026-10-24T17:28:27","slug":"qs-dds-phase-reference-modes-20261018","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1345","title":{"rendered":"DDS\u306e\u4f4d\u76f8\u30e2\u30fc\u30c9\u3001\u5468\u6ce2\u6570\u3092\u5909\u3048\u305f\u5f8c\u306e\u6ce2\u3092\u3069\u3053\u304b\u3089\u59cb\u3081\u308b\u304b"},"content":{"rendered":"<article style=\"overflow-wrap:anywhere;word-break:normal;\">\n<p>\u91cf\u5b50\u5b9f\u9a13\u3067\u96fb\u6c17\u4fe1\u53f7\u3092\u4f7f\u3046\u3068\u304d\u306f\u3001\u30d1\u30eb\u30b9\u3092\u51fa\u3059\u6642\u523b\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u4e2d\u306e\u6ce2\u3092\u3069\u306e\u4f4d\u7f6e\u304b\u3089\u59cb\u3081\u308b\u304b\u3082\u554f\u984c\u306b\u306a\u308a\u307e\u3059\u3002\u5c71\u304b\u3089\u59cb\u307e\u308b\u6ce2\u3068\u3001\u305d\u3053\u304b\u3089\u534a\u5468\u671f\u305a\u308c\u305f\u6ce2\u3067\u306f\u3001\u540c\u3058\u5468\u6ce2\u6570\u3067\u3082\u4f4d\u76f8\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u4e88\u5b9a\u6642\u523b\u3069\u304a\u308a\u306b\u4fe1\u53f7\u3092\u66f4\u65b0\u3067\u304d\u305f\u3068\u3057\u3066\u3082\u3001\u66f4\u65b0\u5f8c\u306e\u4f4d\u76f8\u3092\u305d\u308d\u3048\u3089\u308c\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><strong>DDS\uff08Direct Digital Synthesis\u3001\u76f4\u63a5\u30c7\u30b8\u30bf\u30eb\u5408\u6210\uff09<\/strong>\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u5024\u3067\u6ce2\u306e\u9032\u307f\u65b9\u3092\u6307\u5b9a\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u91cf\u5b50\u5b9f\u9a13\u5236\u5fa1\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2ARTIQ\u306eAD9910\u7528\u30c9\u30e9\u30a4\u30d0\u30fc\u306b\u3042\u308b\u4e09\u3064\u306e\u4f4d\u76f8\u30e2\u30fc\u30c9\u3092\u6bd4\u3079\u307e\u3059\u3002\u9055\u3044\u306f\u3001\u5468\u6ce2\u6570\u3092\u5909\u3048\u305f\u3068\u304d\u306b\u300c\u305d\u308c\u307e\u3067\u9032\u3093\u3060\u4f4d\u76f8\u3092\u6b8b\u3059\u304b\u300d\u300c\u5909\u66f4\u6642\u523b\u304b\u3089\u6570\u3048\u76f4\u3059\u304b\u300d\u300c\u5225\u306e\u57fa\u6e96\u6642\u523b\u304b\u3089\u9032\u3093\u3060\u3053\u3068\u306b\u3059\u308b\u304b\u300d\u3067\u3059\u3002<sup><a href=\"#ref1\">[1]<\/a><\/sup><\/p>\n<section class=\"influvetor-quick-summary\" aria-label=\"\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>continuous\u306f\u5185\u90e8\u3067\u7a4d\u307f\u4e0a\u3052\u305f\u4f4d\u76f8\u3092\u5f15\u304d\u7d99\u304e\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4f4d\u76f8\u306b\u52a0\u3048\u308b\u30aa\u30d5\u30bb\u30c3\u30c8\u307e\u3067\u5909\u3048\u308c\u3070\u3001\u51fa\u529b\u306e\u4f4d\u76f8\u306f\u98db\u3076\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>absolute\u306f\u5909\u66f4\u6642\u523b\u3092\u3001tracking\u306f\u6307\u5b9a\u3057\u305f\u57fa\u6e96\u6642\u523b\u3092\u4f4d\u76f8\u306e\u51fa\u767a\u70b9\u306b\u3057\u307e\u3059\u3002\u540c\u3058\u5468\u6ce2\u6570\u3068\u30aa\u30d5\u30bb\u30c3\u30c8\u3067\u3082\u3001\u57fa\u6e96\u306e\u53d6\u308a\u65b9\u3067\u66f4\u65b0\u76f4\u5f8c\u306e\u4f4d\u76f8\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/li>\n<li>\u4f4d\u76f8\u306e\u5f0f\u3068\u5b9f\u6a5f\u306e\u518d\u73fe\u6027\u306f\u5225\u306b\u78ba\u304b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002AD9910\u7528\u30c9\u30e9\u30a4\u30d0\u30fc\u306f\u3001\u66f4\u65b0\u306e\u6574\u5217\u6761\u4ef6\u3068DMA\u518d\u751f\u6642\u306e\u6ce8\u610f\u3092\u660e\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u4f4d\u76f8\u3092\u300c\u7a4d\u307f\u4e0a\u3052\u305f\u5206\u300d\u3068\u300c\u3042\u3068\u304b\u3089\u8db3\u3059\u5206\u300d\u306b\u5206\u3051\u308b<\/h2>\n<p>\u4f4d\u76f8\u306f\u3001\u6ce2\u306e\u4e00\u5468\u306e\u3046\u3061\u3069\u3053\u307e\u3067\u9032\u3093\u3060\u304b\u3092\u8868\u3059\u91cf\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u4e00\u5468\u30921 turn\u3068\u3057\u3066\u6570\u3048\u307e\u3059\u30020.25 turn\u306f90\u5ea6\u30010.5 turn\u306f180\u5ea6\u3067\u3059\u30021.25 turn\u30680.25 turn\u306f\u3001\u5468\u56de\u6570\u306f\u9055\u3063\u3066\u3082\u4e00\u5468\u306e\u4e2d\u3067\u306f\u540c\u3058\u4f4d\u7f6e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>DDS\u3067\u306f\u3001\u5468\u6ce2\u6570\u306b\u5fdc\u3058\u3066\u5185\u90e8\u306e\u4f4d\u76f8\u3092\u5c11\u3057\u305a\u3064\u9032\u3081\u307e\u3059\u3002\u3053\u306e\u84c4\u7a4d\u3092\u884c\u3046\u90e8\u5206\u304c<strong>\u4f4d\u76f8\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30fc<\/strong>\u3067\u3059\u3002ARTIQ\u306e\u8aac\u660e\u306f\u3001\u305d\u306e\u5185\u90e8\u4f4d\u76f8\u3092q\u3001\u3055\u3089\u306b\u8db3\u3059\u4f4d\u76f8\u30aa\u30d5\u30bb\u30c3\u30c8\u3092p\u3068\u5206\u3051\u3001\u51fa\u529b\u4f4d\u76f8\u3092q\uff0bp\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002\u5468\u6ce2\u6570\u306f\u9032\u3080\u901f\u3055\u3001\u30aa\u30d5\u30bb\u30c3\u30c8\u306f\u6ce2\u3092\u6a2a\u3078\u305a\u3089\u3059\u91cf\u3001\u3068\u8003\u3048\u308b\u3068\u9055\u3044\u3092\u8ffd\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<sup><a href=\"#ref1\">[1]<\/a><\/sup><\/p>\n<p>\u305f\u3068\u3048\u307062.5 MHz\u306a\u3089\u3001\u7406\u60f3\u5316\u3057\u305f\u6ce2\u306f16 ns\u3067\u4e00\u5468\u3057\u307e\u3059\u3002\u66f4\u65b0\u5f8c\u306e\u5468\u6ce2\u6570\u3092\u3053\u306e\u5024\u306b\u56fa\u5b9a\u3059\u308c\u3070\u3001\u4e09\u3064\u306e\u30e2\u30fc\u30c9\u3068\u30828 ns\u30670.5 turn\u9032\u307f\u307e\u3059\u3002\u9055\u3046\u306e\u306f\u901f\u3055\u3067\u306f\u306a\u304f\u3001\u3069\u306e\u4f4d\u76f8\u304b\u3089\u305d\u306e\u534a\u5468\u3092\u9032\u3080\u304b\u3067\u3059\u3002<\/p>\n<h2>\u4e09\u3064\u306e\u30e2\u30fc\u30c9\u306f\u3001\u4f4d\u76f8\u306e\u539f\u70b9\u304c\u9055\u3046<\/h2>\n<p>\u5909\u66f4\u6642\u523b\u3092t\u2032\u3001\u5909\u66f4\u5f8c\u306e\u5468\u6ce2\u6570\u3092f\u3001\u73fe\u5728\u6642\u523b\u3092t\u3001tracking\u7528\u306e\u57fa\u6e96\u6642\u523b\u3092T\u3068\u3057\u307e\u3059\u3002\u6b21\u306e\u8868\u306f\u30c9\u30e9\u30a4\u30d0\u30fc\u304c\u793a\u3059\u57fa\u672c\u306e\u5b9a\u7fa9\u3067\u3059\u3002\u4f4d\u76f8\u306fturn\u3001\u6642\u523b\u306f\u79d2\u3001\u5468\u6ce2\u6570\u306fHz\u3068\u3059\u308b\u3068\u5358\u4f4d\u304c\u305d\u308d\u3044\u307e\u3059\u3002\u8868\u306e\u5f0f\u306f\u5468\u56de\u6570\u3082\u542b\u3081\u3066\u66f8\u3044\u3066\u304a\u308a\u3001\u4e00\u5468\u306e\u4e2d\u306e\u4f4d\u7f6e\u3092\u898b\u308b\u3068\u304d\u306f\u6574\u6570\u90e8\u5206\u3092\u9664\u304d\u307e\u3059\u3002<sup><a href=\"#ref1\">[1]<\/a><\/sup><\/p>\n<div style=\"max-width:100%;overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>\u30e2\u30fc\u30c9<\/th>\n<th>\u66f4\u65b0\u5f8c\u306e\u4f4d\u76f8\u03c6(t)<\/th>\n<th>\u5f15\u304d\u7d99\u3050\u57fa\u6e96<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>continuous<\/td>\n<td>q(t\u2032)\uff0bp\uff0b(t\u2212t\u2032)f<\/td>\n<td>\u66f4\u65b0\u6642\u70b9\u307e\u3067\u306e\u5185\u90e8\u4f4d\u76f8q(t\u2032)<\/td>\n<\/tr>\n<tr>\n<td>absolute<\/td>\n<td>p\uff0b(t\u2212t\u2032)f<\/td>\n<td>\u5909\u66f4\u6642\u523bt\u2032<\/td>\n<\/tr>\n<tr>\n<td>tracking<\/td>\n<td>p\uff0b(t\u2212T)f<\/td>\n<td>\u6307\u5b9a\u3057\u305f\u57fa\u6e96\u6642\u523bT<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><strong>continuous<\/strong>\u3067\u306f\u3001\u5468\u6ce2\u6570\u3084\u4f4d\u76f8\u306e\u8a2d\u5b9a\u6642\u306b\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30fc\u3092\u6d88\u3057\u307e\u305b\u3093\u3002\u30aa\u30d5\u30bb\u30c3\u30c8p\u3092\u4fdd\u3063\u305f\u5468\u6ce2\u6570\u5909\u66f4\u306a\u3089\u3001\u305d\u308c\u307e\u3067\u306e\u4f4d\u76f8\u306b\u3064\u306a\u304c\u308b\u5f62\u3067\u3001\u305d\u306e\u5f8c\u306e\u9032\u3080\u901f\u3055\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001p\u3092\u5909\u3048\u308c\u3070\u3001\u305d\u306e\u5909\u66f4\u91cf\u3060\u3051\u4f4d\u76f8\u306f\u52d5\u304d\u307e\u3059\u3002\u300ccontinuous\u300d\u3068\u3044\u3046\u540d\u524d\u3060\u3051\u3067\u3001\u3069\u306e\u64cd\u4f5c\u3067\u3082\u4f4d\u76f8\u304c\u9023\u7d9a\u3059\u308b\u3068\u89e3\u91c8\u3059\u308b\u306e\u306f\u65e9\u8a08\u3067\u3059\u3002<\/p>\n<p><strong>absolute<\/strong>\u306f\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30fc\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u3001\u5909\u66f4\u6642\u523b\u306e\u4f4d\u76f8\u3092\u6307\u5b9a\u3057\u305fp\u306b\u3057\u307e\u3059\u3002\u540c\u3058\u6761\u4ef6\u3067\u3001\u8a2d\u5b9a\u306e\u305f\u3073\u306b\u6ce2\u3092\u540c\u3058\u4f4d\u7f6e\u304b\u3089\u59cb\u3081\u305f\u3044\u5834\u5408\u306e\u57fa\u6e96\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u6bd4\u8f03\u3067\u306f\u3001absolute\u306b\u8ffd\u52a0\u306e\u57fa\u6e96\u6642\u523b\u3092\u6307\u5b9a\u3057\u306a\u3044\u901a\u5e38\u306e\u5f62\u3092\u6271\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>tracking<\/strong>\u3082\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30fc\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u307e\u3059\u304c\u3001\u57fa\u6e96\u6642\u523bT\u304b\u3089\u65b0\u3057\u3044\u5468\u6ce2\u6570f\u3067\u52d5\u304d\u7d9a\u3051\u3066\u3044\u305f\u3068\u4eee\u5b9a\u3057\u305f\u5206\u3092\u3001\u4f4d\u76f8\u30aa\u30d5\u30bb\u30c3\u30c8\u3078\u52a0\u3048\u307e\u3059\u3002\u904e\u53bb\u306e\u6ce2\u5f62\u3092\u8ffd\u3044\u304b\u3051\u3066\u4fdd\u5b58\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u73fe\u5728\u306e\u8a2d\u5b9a\u3068\u5171\u901a\u306e\u6642\u8a08\u304b\u3089\u4f4d\u76f8\u3092\u8a08\u7b97\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002T\u306e\u65e2\u5b9a\u5024\u306f0\u3067\u3059\u3002\u8cc7\u6599\u304ccoherent phase mode\u3068\u3082\u547c\u3076\u306e\u306f\u3001\u3053\u306e\u6642\u9593\u57fa\u6e96\u306b\u6cbf\u3046\u5b9a\u7fa9\u3067\u3042\u308a\u3001\u5149\u5b66\u7cfb\u5168\u4f53\u3084\u91cf\u5b50\u72b6\u614b\u306e\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u3092\u4fdd\u8a3c\u3059\u308b\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<sup><a href=\"#ref1\">[1]<\/a><\/sup><\/p>\n<h2>\u540c\u305862.5 MHz\u3067\u3082\u3001\u66f4\u65b0\u76f4\u5f8c\u306f\u4e09\u3064\u306e\u4f4d\u7f6e\u306b\u306a\u308b<\/h2>\n<p>\u9055\u3044\u3092\u898b\u308b\u305f\u3081\u3001\u6b21\u306e\u5024\u3092\u7f6e\u304d\u307e\u3059\u3002\u88c5\u7f6e\u3067\u6e2c\u3063\u305f\u7d50\u679c\u3067\u306f\u306a\u304f\u3001\u5b9a\u7fa9\u5f0f\u304b\u3089\u8a08\u7b97\u3059\u308b\u4f8b\u3067\u3059\u3002\u5909\u66f4\u6642\u523bt\u2032\u306f24 ns\u3001\u5909\u66f4\u5f8c\u306ef\u306f62.5 MHz\u3001\u6307\u5b9a\u3059\u308bp\u306f0.125 turn\u3001\u5909\u66f4\u76f4\u524d\u307e\u3067\u306e\u5185\u90e8\u4f4d\u76f8q(t\u2032)\u306f0.25 turn\u3068\u3057\u307e\u3059\u3002tracking\u306eT\u306f0 ns\u3067\u3059\u3002continuous\u3067\u306f\u5909\u66f4\u524d\u5f8c\u3067p\u3092\u540c\u3058\u5024\u306b\u4fdd\u3061\u3001absolute\u3067\u306f\u57fa\u6e96\u6642\u523b\u3092\u8ffd\u52a0\u6307\u5b9a\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>continuous\u306e\u66f4\u65b0\u76f4\u5f8c\u306f0.25\uff0b0.125\uff1d0.375 turn\u3067\u3059\u3002absolute\u306f\u5185\u90e8\u4f4d\u76f8\u3092\u6d88\u3059\u306e\u30670.125 turn\u306b\u306a\u308a\u307e\u3059\u3002tracking\u3067\u306f\u3001\u57fa\u6e96\u6642\u523b\u304b\u308924 ns\u306e\u9593\u306b\u65b0\u3057\u3044\u5468\u6ce2\u6570\u30671.5\u5468\u9032\u3093\u3060\u3068\u8a08\u7b97\u3057\u3001p\u3092\u8db3\u3057\u305f1.625 turn\u3001\u3064\u307e\u308a\u4e00\u5468\u5185\u3067\u306f0.625 turn\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div style=\"max-width:100%;overflow-x:auto;\">\n<table>\n<thead>\n<tr>\n<th>\u30e2\u30fc\u30c9<\/th>\n<th>24 ns\uff1a\u66f4\u65b0\u76f4\u5f8c<\/th>\n<th>32 ns\uff1a8 ns\u5f8c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>continuous<\/td>\n<td>0.375 turn\uff08135\u5ea6\uff09<\/td>\n<td>0.875 turn\uff08315\u5ea6\uff09<\/td>\n<\/tr>\n<tr>\n<td>absolute<\/td>\n<td>0.125 turn\uff0845\u5ea6\uff09<\/td>\n<td>0.625 turn\uff08225\u5ea6\uff09<\/td>\n<\/tr>\n<tr>\n<td>tracking<\/td>\n<td>0.625 turn\uff08225\u5ea6\uff09<\/td>\n<td>0.125 turn\uff0845\u5ea6\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<figure><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-dds-phase-reference-modes-20261018-figure-10698679fad5.png\" alt=\"24 ns\u3067\u306e\u4f4d\u76f8\u3092continuous\u306f0.375\u3001absolute\u306f0.125\u3001tracking\u306f0.625 turn\u3068\u3057\u3066\u3001\u3069\u306e\u7dda\u30828 ns\u3054\u3068\u306b0.5 turn\u9032\u3080\u6bd4\u8f03\u56f3\u3002\" style=\"max-width:100%;height:auto;\"\/><figcaption>\u4e09\u3064\u306e\u4f4d\u76f8\u30e2\u30fc\u30c9\u3092\u540c\u3058\u66f4\u65b0\u5f8c\u5468\u6ce2\u6570\u3067\u6bd4\u8f03\u3057\u305f\u81ea\u4f5c\u56f3\u3002\u7dda\u306e\u50be\u304d\u3092\u898b\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u300124 ns\u306e\u4f4d\u76f8\u30920\u4ee5\u4e0a1\u672a\u6e80\u306b\u305d\u308d\u3048\u3001\u4ee5\u5f8c\u306e\u5468\u56de\u3092\u6298\u308a\u8fd4\u3055\u305a\u306b\u63cf\u3044\u305f\u3002\u8868\u306f\u5404\u6642\u70b9\u306e\u4e00\u5468\u5185\u306e\u4f4d\u7f6e\u3092\u793a\u3059\u305f\u3081\u3001tracking\u306e32 ns\u306f\u56f3\u306e1.125 turn\u3068\u540c\u3058\u4f4d\u7f6e\u306e0.125 turn\u306b\u306a\u308b\u3002\u5b9f\u6a5f\u306e\u9045\u5ef6\u3084\u6ce2\u5f62\u6e2c\u5b9a\u3092\u793a\u3059\u56f3\u3067\u306f\u306a\u3044\u3002<\/figcaption><\/figure>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u4e09\u3064\u306e\u6ce2\u304c\u9032\u3080\u901f\u3055\u306f\u540c\u3058\u307e\u307e\u3001\u4f4d\u76f8\u306e\u5dee\u3082\u4fdd\u305f\u308c\u307e\u3059\u3002tracking\u3092\u9078\u3093\u3067\u3082\u3001continuous\u306e\u904e\u53bb\u306e\u4f4d\u76f8\u3078\u81ea\u52d5\u7684\u306b\u3064\u306a\u304c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9006\u306b\u3001tracking\u306eT\u3092\u5909\u66f4\u6642\u523bt\u2032\u3068\u540c\u3058\u306b\u7f6e\u3051\u3070\u3001\u5b9a\u7fa9\u5f0f\u306fabsolute\u306e\u57fa\u672c\u5f62\u3068\u4e00\u81f4\u3057\u307e\u3059\u3002\u3069\u3061\u3089\u304c\u5e38\u306b\u512a\u308c\u308b\u304b\u3067\u306f\u306a\u304f\u3001\u5f15\u304d\u7d99\u304e\u305f\u3044\u306e\u304c\u300c\u76f4\u524d\u306e\u84c4\u7a4d\u300d\u304b\u300c\u5171\u901a\u306e\u6642\u523b\u300d\u304b\u3067\u9078\u3073\u307e\u3059\u3002<\/p>\n<h2>\u8a2d\u5b9a\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u66f4\u65b0\u304c\u53cd\u6620\u3055\u308c\u308b\u6761\u4ef6\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\n<p>\u3053\u3053\u307e\u3067\u306e\u5f0f\u306f\u3001\u4f4d\u76f8\u306e\u57fa\u6e96\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u30e2\u30c7\u30eb\u3067\u3059\u3002\u5b9f\u88c5\u3067\u306f\u6709\u9650\u5e45\u306e\u6574\u6570\u3092\u4f7f\u3044\u307e\u3059\u3002\u4fdd\u5b58\u3057\u305fAD9910\u7528\u30c9\u30e9\u30a4\u30d0\u30fc\u306e<code style=\"overflow-wrap:anywhere;\">set_mu<\/code>\u306f\u3001\u5468\u6ce2\u6570\u309232 bit\u306eFTW\u3001\u4f4d\u76f8\u30aa\u30d5\u30bb\u30c3\u30c8\u309216 bit\u306ePOW\u3001\u632f\u5e45\u309214 bit\u306eASF\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u4f4d\u76f8\u30aa\u30d5\u30bb\u30c3\u30c8\u306e1\u523b\u307f\u306f1\/65,536 turn\u3067\u3059\u3002\u3053\u306e\u7d30\u304b\u3055\u306f\u8a2d\u5b9a\u5024\u306e\u5206\u89e3\u80fd\u3067\u3042\u308a\u3001\u51fa\u529b\u4f4d\u76f8\u306e\u6e2c\u5b9a\u7cbe\u5ea6\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<sup><a href=\"#ref2\">[2]<\/a><\/sup><\/p>\n<p>SPI\u901a\u4fe1\u3067\u8a2d\u5b9a\u3092\u6e21\u3057\u305f\u3042\u3068\u3001\u5171\u901a\u306eIO_UPDATE\u4fe1\u53f7\u3092\u30d1\u30eb\u30b9\u72b6\u306b\u51fa\u3057\u3066\u3001\u65b0\u3057\u3044\u5024\u3092\u53cd\u6620\u3057\u307e\u3059\u3002\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u95a2\u6570\u3092\u547c\u3073\u59cb\u3081\u305f\u6642\u523b\u3092\u3001\u305d\u306e\u307e\u307e\u51fa\u529b\u6ce2\u5f62\u304c\u5909\u308f\u308b\u6642\u523b\u3068\u307f\u306a\u3059\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30c9\u30e9\u30a4\u30d0\u30fc\u5185\u3067\u3082\u3001\u57fa\u6e96\u6642\u523b\u306b\u3088\u308b\u4f4d\u76f8\u88dc\u6b63\u3068\u51fa\u529b\u5074\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u9045\u5ef6\u3092\u533a\u5225\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u3053\u306e\u5b9f\u88c5\u306f\u3001\u518d\u73fe\u6027\u306e\u3042\u308b\u4f4d\u76f8\u5236\u5fa1\u306b4 ns\u306eSYNC_CLK\u683c\u5b50\u3078\u64cd\u4f5c\u3092\u6574\u5217\u3055\u305b\u308b\u6761\u4ef6\u304c\u3042\u308b\u3068\u660e\u8a18\u3057\u3066\u3044\u307e\u3059\u3002\u901a\u5e38\u306e\u547c\u3073\u51fa\u3057\u3067\u306f\u6574\u5217\u3092\u884c\u3044\u307e\u3059\u304c\u3001\u8a18\u9332\u6e08\u307f\u306e\u64cd\u4f5c\u5217\u3092DMA\u3067\u518d\u751f\u3059\u308b\u5834\u5408\u306f\u3001SYNC_CLK\u306b\u5bfe\u3057\u3066\u540c\u3058\u305a\u308c\u3067\u518d\u751f\u3092\u59cb\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3067\u306a\u3044\u3068\u3001\u3069\u306e\u5468\u671f\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u304b\u304c\u63fa\u308c\u3001\u3061\u3087\u3046\u30694 ns\u306e\u9045\u5ef6\u5dee\u304c\u751f\u3058\u5f97\u307e\u3059\u300262.5 MHz\u306e\u4f8b\u306a\u30894 ns\u306f0.25\u5468\u300190\u5ea6\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u6761\u4ef6\u9055\u53cd\u6642\u306e\u5f71\u97ff\u3092\u63db\u7b97\u3057\u305f\u5024\u3067\u3001\u5b9f\u6a5f\u306790\u5ea6\u306e\u8aa4\u5dee\u3092\u6e2c\u5b9a\u3057\u305f\u7d50\u679c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<sup><a href=\"#ref2\">[2]<\/a><\/sup><\/p>\n<p>DMA\u306b\u306f\u3082\u3046\u4e00\u3064\u6ce8\u610f\u304c\u3042\u308a\u307e\u3059\u3002\u65e2\u5b9a\u306e\u4f4d\u76f8\u30e2\u30fc\u30c9\u8a2d\u5b9a\u304c\u8a18\u9332\u30fb\u518d\u751f\u306e\u4e2d\u3067\u4e0d\u6574\u5408\u306b\u306a\u308a\u5f97\u308b\u305f\u3081\u3001\u8cc7\u6599\u306f<code style=\"overflow-wrap:anywhere;\">set<\/code>\u3084<code style=\"overflow-wrap:anywhere;\">set_mu<\/code>\u306e\u547c\u3073\u51fa\u3057\u3067\u30e2\u30fc\u30c9\u3092\u660e\u793a\u3059\u308b\u3053\u3068\u3092\u52e7\u3081\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001<code style=\"overflow-wrap:anywhere;\">ref_time_mu<\/code>\u3092\u660e\u793a\u3059\u308b\u3068absolute\u5074\u3067\u3082\u57fa\u6e96\u6642\u523b\u306b\u5fdc\u3058\u305f\u88dc\u6b63\u304c\u5165\u308b\u5b9f\u88c5\u3067\u3059\u3002\u57fa\u672c\u306e\u30e2\u30fc\u30c9\u540d\u3060\u3051\u3067\u306a\u304f\u3001\u547c\u3073\u51fa\u3057\u306b\u6e21\u3057\u305f\u5f15\u6570\u307e\u3067\u898b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>tracking\u306e\u88dc\u6b63\u5f8c\u306bcontinuous\u3092\u7d9a\u3051\u308b\u3068\u304d\u3082\u3001\u6307\u5b9a\u524d\u306ep\u3068\u3001\u5b9f\u969b\u306b\u66f8\u304b\u308c\u305f\u88dc\u6b63\u5f8c\u306e\u30aa\u30d5\u30bb\u30c3\u30c8\u306f\u540c\u3058\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<code style=\"overflow-wrap:anywhere;\">set_mu<\/code>\u304c\u8fd4\u3059\u88dc\u6b63\u5f8c\u306e\u4f4d\u76f8\u8a9e\u3092\u3001\u5f8c\u7d9a\u306econtinuous\u3067\u73fe\u5728\u306e\u4f4d\u76f8\u3068\u3057\u3066\u4f7f\u3046\u3088\u3046\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30e2\u30fc\u30c9\u3092\u5207\u308a\u66ff\u3048\u308b\u7b87\u6240\u3067\u306f\u3001\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30fc\u3060\u3051\u3067\u306a\u304f\u30aa\u30d5\u30bb\u30c3\u30c8\u306e\u5f15\u304d\u7d99\u304e\u3082\u78ba\u8a8d\u70b9\u306b\u306a\u308a\u307e\u3059\u3002<sup><a href=\"#ref2\">[2]<\/a><\/sup><\/p>\n<h2>\u305d\u308d\u3048\u305f\u3044\u3082\u306e\u306b\u5408\u308f\u305b\u3066\u6bd4\u8f03\u3059\u308b<\/h2>\n<p>\u76f4\u524d\u306e\u6ce2\u306b\u3064\u306a\u304c\u308b\u5468\u6ce2\u6570\u5909\u66f4\u3092\u3057\u305f\u3044\u306a\u3089\u3001continuous\u3067p\u3092\u4fdd\u3066\u308b\u304b\u3092\u898b\u307e\u3059\u3002\u8a2d\u5b9a\u306e\u305f\u3073\u306b\u6ce2\u3092\u6307\u5b9a\u4f4d\u7f6e\u304b\u3089\u59cb\u3081\u305f\u3044\u306a\u3089\u3001absolute\u306e\u5909\u66f4\u6642\u523b\u3092\u57fa\u6e96\u306b\u8003\u3048\u307e\u3059\u3002\u96e2\u308c\u305f\u66f4\u65b0\u3092\u540c\u3058\u6642\u523b\u57fa\u6e96\u3078\u7d50\u3073\u305f\u3044\u306a\u3089\u3001tracking\u3067T\u3068\u5468\u6ce2\u6570\u304b\u3089\u6c42\u3081\u305f\u4f4d\u76f8\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u66f4\u65b0\u4fe1\u53f7\u3001DMA\u306e\u958b\u59cb\u4f4d\u7f6e\u3001\u5171\u901a\u30af\u30ed\u30c3\u30af\u3001\u4fe1\u53f7\u304c\u901a\u308b\u7d4c\u8def\u306e\u9045\u5ef6\u3092\u78ba\u304b\u3081\u308b\u3068\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u6307\u5b9a\u3068\u5b9f\u969b\u306e\u6ce2\u306e\u9055\u3044\u3092\u5207\u308a\u5206\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u306e\u5bfe\u8c61\u306f\u30012026\u5e7410\u670818\u65e5\u306b\u4fdd\u5b58\u3057\u305fARTIQ\u306e\u56fa\u5b9a\u30bd\u30fc\u30b9\u7248\u3067\u3059\u3002\u4e09\u3064\u306e\u30e2\u30fc\u30c9\u306e\u610f\u5473\u3068\u6761\u4ef6\u3092\u8aad\u3080\u305f\u3081\u306e\u4f8b\u3067\u3042\u308a\u3001\u88c5\u7f6e\u3078\u63a5\u7d9a\u3057\u305f\u8a66\u9a13\u3001\u8907\u6570DDS\u306e\u540c\u671f\u5b9f\u8a3c\u3001\u30ec\u30fc\u30b6\u30fc\u307e\u3067\u542b\u3080\u4f4d\u76f8\u5b89\u5b9a\u6027\u306e\u6e2c\u5b9a\u306f\u884c\u3063\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>ARTIQ\u306e\u958b\u767a\u3084\u5b9f\u9a13\u6a5f\u5668\u306e\u63d0\u4f9b\u3092\u624b\u304c\u3051\u308bM-Labs\u306e\u4e8b\u696d\u306b\u3064\u3044\u3066\u306f\u3001cyclewave\u306e\u4f01\u696d\u89e3\u8aac\u3067\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p style=\"text-align:center;\"><a href=\"https:\/\/cyclewave.net\/?p=284\" style=\"display:inline-block;padding:0.7em 1em;border:1px solid currentColor;border-radius:4px;\">M-Labs\u306e\u4f01\u696d\u89e3\u8aac\u3092\u8aad\u3080<\/a><\/p>\n<h2>\u51fa\u5178<\/h2>\n<ol>\n<li id=\"ref1\"><a href=\"https:\/\/git.m-labs.hk\/M-Labs\/artiq\/src\/commit\/a7303a7a536935a2e4a7b8d1a537ca89f567772f\/artiq\/coredevice\/ad9910.py\">ARTIQ\u30fbAD9910\u30c9\u30e9\u30a4\u30d0\u30fc\u56fa\u5b9a\u7248\uff1aset_phase_mode\u306e\u5b9a\u7fa9<\/a>\u3002M-Labs\u516c\u5f0f\u30ea\u30dd\u30b8\u30c8\u30ea\u3002\u56fa\u5b9acommit <code style=\"overflow-wrap:anywhere;word-break:break-all;\">a7303a7a536935a2e4a7b8d1a537ca89f567772f<\/code>\u3001\u4e3b\u306b190\u2013228\u884c\u3002<\/li>\n<li id=\"ref2\"><a href=\"https:\/\/git.m-labs.hk\/M-Labs\/artiq\/src\/commit\/a7303a7a536935a2e4a7b8d1a537ca89f567772f\/artiq\/coredevice\/ad9910.py#L543\">\u540c\u56fa\u5b9a\u7248\uff1aset_mu\u306e\u8a2d\u5b9a\u5e45\u3001\u66f4\u65b0\u3001\u6574\u5217\u3001\u57fa\u6e96\u6642\u523b\u88dc\u6b63<\/a>\u3002\u4e3b\u306b543\u2013621\u884c\u3002\u540c\u3058\u30bd\u30fc\u30b9\u306e\u5225\u7b87\u6240\u3067\u3042\u308a\u3001\u72ec\u7acb\u3057\u305f\u5b9f\u9a13\u6839\u62e0\u3067\u306f\u306a\u3044\u3002<\/li>\n<li id=\"ref3\"><a href=\"https:\/\/m-labs.hk\/artiq\/manual\/core_drivers_reference.html#artiq.coredevice.ad9910.AD9910.set_phase_mode\">ARTIQ Core drivers reference\uff1aAD9910<\/a>\u30022026\u5e7410\u670818\u65e5\u4fdd\u5b58\u6642\u306e\u8868\u793a\u72489.9698+a7303a7\u3002\u5f8c\u65e5\u66f4\u65b0\u3055\u308c\u5f97\u308b\u30aa\u30f3\u30e9\u30a4\u30f3\u8aac\u660e\u3068\u3001\u4e0a\u8a18\u306e\u56fa\u5b9a\u7248\u3092\u533a\u5225\u3057\u305f\u3002<\/li>\n<\/ol>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>\u91cf\u5b50\u5b9f\u9a13\u3067\u96fb\u6c17\u4fe1\u53f7\u3092\u4f7f\u3046\u3068\u304d\u306f\u3001\u30d1\u30eb\u30b9\u3092\u51fa\u3059\u6642\u523b\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u4e2d\u306e\u6ce2\u3092\u3069\u306e\u4f4d\u7f6e\u304b\u3089\u59cb\u3081\u308b\u304b\u3082\u554f\u984c\u306b\u306a\u308a\u307e\u3059\u3002\u5c71\u304b\u3089\u59cb\u307e\u308b\u6ce2\u3068\u3001\u305d\u3053\u304b\u3089\u534a\u5468\u671f\u305a\u308c\u305f\u6ce2\u3067\u306f\u3001\u540c\u3058\u5468\u6ce2\u6570\u3067\u3082\u4f4d\u76f8\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u4e88\u5b9a\u6642\u523b\u3069\u304a\u308a\u306b\u4fe1\u53f7\u3092\u66f4\u65b0\u3067\u304d\u305f [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1343,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[30],"tags":[184],"class_list":["post-1345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computing","tag-quantum-computers"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-dds-phase-reference-modes-20261018-featured-b3b12671f296.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1345"}],"version-history":[{"count":2,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1345\/revisions"}],"predecessor-version":[{"id":1607,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1345\/revisions\/1607"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1343"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}