{"id":11,"date":"2025-03-01T19:04:27","date_gmt":"2025-03-01T19:04:27","guid":{"rendered":"https:\/\/askhatuzbekov.com\/?p=11"},"modified":"2025-03-01T19:04:27","modified_gmt":"2025-03-01T19:04:27","slug":"hifi-dac","status":"publish","type":"post","link":"https:\/\/askhatuzbekov.com\/?p=11","title":{"rendered":"HiFi DAC"},"content":{"rendered":"\n<p>The first IC, PCM2706, serves as a bridge between the USB interface and the DAC itself. The computer will recognize it.<\/p>\n\n\n\n<p>According to the datasheet, the PCM5102 features a -2VRMS DirectPath\u2122 output, a 112dB stereo audio DAC, and supports a 32-bit, 384kHz PCM interface.<\/p>\n\n\n\n<p>Four voltage regulators provide 3.3V power to minimize parasitic noise.<\/p>\n\n\n\n<p>The <strong>FLT<\/strong> switch controls FIR interpolation filters (&#8220;Normal x8\/x4\/x2\/x1&#8221;) and IIR interpolation filters (&#8220;Low Latency x8\/x4\/x2\/x1&#8221;) and is set to the ON position.<\/p>\n\n\n\n<p>Operational amplifiers used: <strong>OPA1622<\/strong>.<\/p>\n\n\n\n<p>For measuring amplifier linearity (THD), a methodology is used to determine distortions based on the second harmonic. The second harmonic deviates from the fundamental frequency by <strong>120dB<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/askhatuzbekov.com\/wp-content\/uploads\/2025\/03\/case2-1-1024x768.jpg\" alt=\"\" class=\"wp-image-12\" srcset=\"https:\/\/askhatuzbekov.com\/wp-content\/uploads\/2025\/03\/case2-1-1024x768.jpg 1024w, https:\/\/askhatuzbekov.com\/wp-content\/uploads\/2025\/03\/case2-1-300x225.jpg 300w, https:\/\/askhatuzbekov.com\/wp-content\/uploads\/2025\/03\/case2-1-768x576.jpg 768w, https:\/\/askhatuzbekov.com\/wp-content\/uploads\/2025\/03\/case2-1.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The first IC, PCM2706, serves as a bridge between the USB interface and the DAC itself. The computer will recognize it. According to the datasheet, the PCM5102 features a -2VRMS DirectPath\u2122 output, a 112dB stereo audio DAC, and supports a 32-bit, 384kHz PCM interface. Four voltage regulators provide 3.3V power to minimize parasitic noise. The [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=\/wp\/v2\/posts\/11","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11"}],"version-history":[{"count":1,"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=\/wp\/v2\/posts\/11\/revisions"}],"predecessor-version":[{"id":13,"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=\/wp\/v2\/posts\/11\/revisions\/13"}],"wp:attachment":[{"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/askhatuzbekov.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}