{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-0202Q0109KE1T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-0202Q0109KE1T","canonicalUrl":"https://icboms.com/microchip/DSC400-0202Q0109KE1T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-0202Q0109KE1T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, dual-output LVPECL, 153.6 MHz and 176.875 MHz, ±50 ppm stability, -20°C to 70°C, 20-VFQFN exposed-pad package, enable/disable function.","salesMarkdown":"## Dual-frequency LVPECL clock in a MEMS XO The DSC400-0202Q0109KE1T is a MEMS-based XO that outputs two independent LVPECL frequencies from a single 20-VFQFN package: 153.6 MHz on output 1 and 176.875 MHz on output 2. These two frequencies are common in 10G/25G Ethernet SerDes reference clocks and FPGA transceiver banks — one oscillator replaces two discrete cans, saving board area and reducing the BOM line count. ## Supply range and enable/disable control Operates from 2.25 V to 3.6 V — covers 2.5 V and 3.3 V rails without an external regulator. Housed in a 20-VFQFN with an exposed pad (5.00 mm x 3.20 mm, 0.90 mm height). The DSC400 series is Microchip's current-generation MEMS oscillator family; no successor has been announced.","metaTitle":"DSC400-0202Q0109KE1T MEMS XO – 153.6 MHz & 176.875 MHz","metaDescription":"Microchip DSC400 dual-output LVPECL XO, 153.6 MHz & 176.875 MHz, ±50 ppm, -20°C to 70°C, 20-VFQFN. Active production. RFQ for pricing and availability.","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":"176.875MHz","Frequency - Output 3":"-","Frequency - Output 4":"-","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dafa7ad99233da79a125bb7188cdbad7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC400-0202Q0109KE1T/alternatives.json"},"ai":{"faq":[{"question":"What are the exact output frequencies of DSC400-0202Q0109KE1T?","answer":"Output 1 is 153.6 MHz; output 2 is 176.875 MHz. Both are LVPECL differential outputs."},{"question":"Is DSC400-0202Q0109KE1T RoHS compliant?","answer":"The part is listed as RoHS compliant per Microchip's standard DSC400 series material declaration. The 20-VFQFN package is lead-free and compatible with lead-free reflow profiles."},{"question":"Can DSC400-0202Q0109KE1T be used with a 3.3 V supply?","answer":"Yes — the supply voltage range is 2.25 V to 3.6 V, so 3.3 V is within spec. The LVPECL output swing scales with the supply voltage; at 3.3 V the differential swing is typically 800 mV p-p."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-0202Q0109KE1T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-0202Q0109KE1T 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}}