{"id":32254,"date":"2026-05-22T09:00:00","date_gmt":"2026-05-22T08:00:00","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=32254"},"modified":"2026-05-15T10:10:31","modified_gmt":"2026-05-15T09:10:31","slug":"miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\/","title":{"rendered":"Miniature crystal oscillator for critical timing in low- and battery-powered applications"},"content":{"rendered":"\n

Microchip Technology’s EX\u2011423 Evacuated Miniature Crystal Oscillator (EMXO)<\/strong><\/a> is a compact, low\u2011power timing solution designed for applications that demand high stability, accuracy and long\u2011term reliability. The EX\u2011423 delivers high RF performance in a low\u2011profile 13mm x 13mm package for space\u2011 and power\u2011constrained designs.<\/p>\n\n\n\n

Ruggedised for demanding environments, the EX\u2011423 is sealed in an ultra\u2011high vacuum designed to provide optimal thermal insulation and help improve frequency stability. Its quartz crystal uses a four\u2011point mount to enhance shock survivability and reduce g\u2011sensitivity, making it well suited for GPS\/GNSS tracking, military radios, medical devices, Ocean Bottom Node (OBN) seismic systems, test and measurement equipment and satellite communications.<\/p>\n\n\n\n

\u201cWhen developing the EX\u2011423, we focused on the key parameters designers use to evaluate high\u2011performance reference oscillators,\u201d said Randy Brudzinski, corporate vice president of Microchip\u2019s frequency and time systems business unit. \u201cDelivering this level of performance in a rugged, small footprint helps customers simplify designs without compromising timing accuracy.\u201d<\/p>\n\n\n\n

The EX\u2011423 combines ultra\u2011low phase noise with tight temperature control, strong short\u2011term stability (Allan deviation), fast warm\u2011up, and long\u2011term frequency stability. Operating over a standard 10\u201320\u202fMHz frequency range, the device consumes 1W during warm\u2011up and as little as 0.2W at +25\u202f\u00b0C in steady state, helping extend battery life while maintaining a clean, stable reference under specified operating conditions.<\/p>\n","protected":false},"excerpt":{"rendered":"

Microchip Technology’s EX\u2011423 Evacuated Miniature Crystal Oscillator (EMXO) is a compact, low\u2011power timing solution designed for applications that demand high stability, accuracy and long\u2011term reliability. The EX\u2011423 delivers high RF performance in a low\u2011profile 13mm x 13mm package for space\u2011 and power\u2011constrained designs. Ruggedised for demanding environments, the EX\u2011423 is sealed in an ultra\u2011high vacuum …<\/p>\n","protected":false},"author":1,"featured_media":32256,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[14881,2732],"class_list":["post-32254","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-ex-423-evacuated-miniature-crystal-oscillator-emxo","tag-microchip-technology"],"yoast_head":"\nMiniature crystal oscillator for critical timing in low- and battery-powered applications - Engineer News Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Miniature crystal oscillator for critical timing in low- and battery-powered applications - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Microchip Technology’s EX\u2011423 Evacuated Miniature Crystal Oscillator (EMXO) is a compact, low\u2011power timing solution designed for applications that demand high stability, accuracy and long\u2011term reliability. The EX\u2011423 delivers high RF performance in a low\u2011profile 13mm x 13mm package for space\u2011 and power\u2011constrained designs. Ruggedised for demanding environments, the EX\u2011423 is sealed in an ultra\u2011high vacuum …\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineer News Network\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-22T08:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2026\/05\/MC1765-Image-EX-423-EMXO-V4-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1422\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"headline\":\"Miniature crystal oscillator for critical timing in low- and battery-powered applications\",\"datePublished\":\"2026-05-22T08:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\\\/\"},\"wordCount\":237,\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/MC1765-Image-EX-423-EMXO-V4-scaled.jpg\",\"keywords\":[\"EX\u2011423 Evacuated Miniature Crystal Oscillator (EMXO)\",\"Microchip Technology\"],\"articleSection\":[\"Electronics\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\\\/\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/miniature-crystal-oscillator-for-critical-timing-in-low-and-battery-powered-applications\\\/\",\"name\":\"Miniature crystal oscillator for critical timing in low- and battery-powered applications - 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