{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0202Q0108KI2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0202Q0108KI2T","canonicalUrl":"https://icboms.com/microchip/DSC400-0202Q0108KI2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0202Q0108KI2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard) MEMS oscillator, dual LVPECL outputs at 167.1875 MHz and 173.28125 MHz, ±25 ppm stability, 2.25 V–3.6 V supply, -40°C to +85°C, 20-VFQFN exposed-pad package.","salesMarkdown":"## MEMS oscillator with dual LVPECL clock outputs The DSC400-0202Q0108KI2T is a MEMS-based XO (Standard) from Microchip's DSC400 series, delivering two fixed LVPECL output frequencies: 167.1875 MHz and 173.28125 MHz. The supply voltage spans 2.25 V to 3.6 V, allowing the same BOM line to run from a 2.5 V or 3.3 V rail without a separate regulator or level translator. Housed in a 20-VFQFN with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height), the DSC400-0202Q0108KI2T requires a thermal pad on the PCB for both heat sinking and electrical ground — a missing or poorly soldered pad can raise the junction temperature and degrade the LVPECL output swing at the far end of a 50-ohm trace. The 0.035-inch (0.90 mm) height keeps it compatible with standard 1.6 mm PCB stack-ups and mezzanine card spacing where clearance is tight.","metaTitle":"DSC400-0202Q0108KI2T MEMS XO – 167.1875/173.28125 MHz LVPECL","metaDescription":"Microchip DSC400-0202Q0108KI2T: MEMS XO, dual LVPECL outputs at 167.1875 & 173.28125 MHz, ±25 ppm stability, -40°C to +85°C, 2.25-3.6 V supply.","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":"167.1875MHz","Frequency - Output 2":"173.28125MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","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/04fb9d0cee1ca09937ed5821e725618f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the frequency stability of the DSC400-0202Q0108KI2T?","answer":"±25 ppm across the full operating temperature and supply voltage range. That is tight enough for most 1 GbE and PCIe Gen 1/2 reference clocks without needing a TCXO."},{"question":"Does the DSC400-0202Q0108KI2T have an enable/disable function?","answer":"Yes. The Enable/Disable pin lets you gate the LVPECL outputs without cycling the supply, which helps with power sequencing and reducing EMI during idle periods."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0202Q0108KI2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0202Q0108KI2T 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}}