{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0202Q0108KI2","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0202Q0108KI2","canonicalUrl":"https://icboms.com/microchip/DSC400-0202Q0108KI2","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0202Q0108KI2","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO (Standard), dual LVPECL outputs 167.1875 MHz and 173.28125 MHz, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 20-VFQFN exposed pad, active production.","salesMarkdown":"## Dual LVPECL clock source for high-speed SerDes The DSC400-0202Q0108KI2 is a MEMS-based XO that delivers two independent LVPECL output frequencies: 167.1875 MHz and 173.28125 MHz from a single 20-VFQFN package. This eliminates a separate oscillator for each clock domain in FPGA or SerDes reference trees. Supply voltage spans 2.25V to 3.6V, so the same part works across 2.5V and 3.3V rails without a level translator on the output. ## ±25 ppm stability over industrial temperature For a 167.1875 MHz carrier, that is roughly ±4.2 kHz of total drift — tight enough for most 10GbE and PCIe Gen3 reference clocks without external VCXO tuning. ## Active lifecycle, no end-of-life pressure Microchip lists the DSC400-0202Q0108KI2 as Active. No pin-compatible second source is documented; the DSC400 family is the only drop-in path. ## 20-VFQFN exposed-pad layout note The 20-VFQFN Exposed Pad package measures 5.00 mm x 3.20 mm with a 0.90 mm seated height.","metaTitle":"DSC400-0202Q0108KI2 MEMS XO, LVPECL, 167.1875/173.28125 MHz","metaDescription":"Microchip DSC400-0202Q0108KI2: MEMS-based XO, dual LVPECL outputs at 167.1875 & 173.28125 MHz, ±25 ppm stability, -40°C to 85°C, active production.","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":"Tube","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":"Where can I buy DSC400-0202Q0108KI2 and what is the lead time?","answer":"The DSC400-0202Q0108KI2 is an active Microchip part. We source it through independent distribution and quote to order against your BOM quantity. Availability and current pricing are confirmed at RFQ time — no stock-holding claim is made here."},{"question":"Does DSC400-0202Q0108KI2 have a pin-compatible alternative or replacement?","answer":"No official second-source or direct replacement is documented for this specific order code. The DSC400 family from Microchip is the only drop-in path. If you need a functional equivalent with different frequencies or output logic, the DSC400 series offers other variants, but pin compatibility must be verified against the datasheet."},{"question":"What is the output type and frequency stability of the DSC400-0202Q0108KI2?","answer":"Output is LVPECL. Frequency stability is ±25 ppm over the -40°C to 85°C operating range. The two output frequencies are 167.1875 MHz and 173.28125 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0202Q0108KI2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0202Q0108KI2 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}}