{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0202Q0106KE1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0202Q0106KE1T","canonicalUrl":"https://icboms.com/microchip/DSC400-0202Q0106KE1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0202Q0106KE1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, dual LVPECL outputs at 153.6 MHz and 155.46875 MHz, ±50 ppm stability, 2.25 V to 3.6 V supply, 20-VFQFN exposed pad package.","salesMarkdown":"## Active MEMS oscillator for Ethernet timing The DSC400-0202Q0106KE1T is an active-production MEMS-based XO from Microchip, delivering two LVPECL clock outputs at 153.6 MHz and 155.46875 MHz with ±50 ppm frequency stability. The 2.25 V to 3.6 V supply range lets it run directly off a 2.5 V or 3.3 V rail without an intermediate regulator, and the Enable/Disable function lets the system gate the clock for power savings. The dual output frequencies map directly to Ethernet line rates: 153.6 MHz is a common reference for 10GbE and 25GbE PHYs, while 155.46875 MHz aligns with SONET/SDH OC-3/OC-12 timing — one oscillator covers both domains. LVPECL output provides a differential signal with typical 800 mV swing into 50 Ω to ground, giving better noise immunity than LVCMOS on long board traces or through connectors. Housed in a 20-VFQFN with exposed pad, the 5.00 mm x 3.20 mm footprint matches standard 5×3.2 mm oscillator land patterns. The 0.90 mm height keeps it compatible with mezzanine card and blade-server board stack-ups where component clearance is tight.","metaTitle":"DSC400-0202Q0106KE1T MEMS XO – 153.6/155.46875 MHz LVPECL","metaDescription":"Microchip DSC400-0202Q0106KE1T: MEMS XO, dual LVPECL outputs at 153.6 MHz and 155.46875 MHz, ±50 ppm stability, 2.25-3.6V supply, -20°C to 70°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Height":"0.035\\\" (0.90mm)","Output":"LVPECL","Series":"DSC400","Package":"Tape & Reel (TR)","Function":"Enable/Disable","Base Resonator":"MEMS","Package / Case":"20-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC400","Frequency Stability":"±50ppm","Frequency - Output 1":"153.6MHz","Frequency - Output 2":"155.46875MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/53bec600993e140a8d5846badec97a0b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can DSC400-0202Q0106KE1T replace a standard quartz oscillator?","answer":"Yes, if the board expects a 5.0 mm x 3.2 mm XO with LVPECL output at these two frequencies. The MEMS-based part is pin-compatible with many quartz oscillators in the same footprint, and it avoids the long lead times and aging drift of quartz crystals."},{"question":"Does the DSC400 require external load capacitors?","answer":"No. Because the DSC400 uses a MEMS resonator with an internal PLL, it does not need the external load capacitors that a quartz crystal oscillator would require. The output is a buffered LVPECL signal that drives 50 Ω terminated lines directly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0202Q0106KE1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0202Q0106KE1T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}