{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-2222Q0118KI2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-2222Q0118KI2T","canonicalUrl":"https://icboms.com/microchip/DSC400-2222Q0118KI2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-2222Q0118KI2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, quad LVPECL outputs at 100 MHz and 125 MHz, ±25 ppm stability, -40°C to 85°C, 2.25V–3.6V supply, 20-VFQFN exposed-pad package","salesMarkdown":"## Quad LVPECL timing source with MEMS reliability The MEMS resonator eliminates the aging and vibration sensitivity of quartz crystals — a real advantage in systems that see shock or wide temperature swings, such as outdoor small cells or industrial Ethernet switches. ## Stability and temperature grade for outdoor deployment Rated at ±25 ppm frequency stability over the -40°C to 85°C industrial temperature range, this oscillator holds the clock edge tight enough for 10/100/1000BASE-T jitter budgets without an external TCXO — a common gotcha when designers assume a basic XO will pass the Ethernet mask at temperature extremes. ## Supply flexibility and enable/disable control The 2.25V to 3.6V supply range lets the same BOM position serve 2.5V and 3.3V rails — useful when a board has both voltage domains and you want one clock part number across both. ## Package and layout consideration Housed in a 20-VFQFN with exposed pad measuring 5.00 mm x 3.20 mm and 0.90 mm height, the package footprint is compact but the thermal pad underneath must be soldered to a ground plane with adequate thermal vias — skipping this step can cause frequency drift under load.","metaTitle":"DSC400-2222Q0118KI2T – Microchip MEMS XO, 4x LVPECL","metaDescription":"Active quad-output MEMS oscillator from Microchip. Four 100/125 MHz LVPECL outputs, ±25 ppm stability, -40°C to 85°C, 2.25-3.6V supply. Sourced per RFQ.","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":"±25ppm","Frequency - Output 1":"100MHz, 125MHz","Frequency - Output 2":"100MHz, 125MHz","Frequency - Output 3":"100MHz, 125MHz","Frequency - Output 4":"100MHz, 125MHz","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3dfbcfb7084b1e9ddbf5f3f3f9854796.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the exact frequency outputs of the DSC400-2222Q0118KI2T?","answer":"All four outputs are identical: each can be 100 MHz or 125 MHz (–). The part number suffix '2222Q0118' encodes the output configuration — confirm the exact frequency plan against the DSC400 ordering guide, but the datasheet shows these as the two supported frequencies for this variant."},{"question":"Is the DSC400-2222Q0118KI2T a MEMS oscillator?","answer":"Yes — the base resonator is MEMS, not quartz. This gives better resistance to vibration and shock, and eliminates the frequency aging curve typical of crystal oscillators over a 10-year product life."},{"question":"What supply voltage does the DSC400-2222Q0118KI2T accept?","answer":"The operating supply range is 2.25V to 3.6V, covering both 2.5V and 3.3V rails. The LVPECL output swing scales with the supply, so the receiver's input common-mode range must be checked at the chosen rail voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-2222Q0118KI2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-2222Q0118KI2T 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}}