{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4334Q0022KE1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4334Q0022KE1","canonicalUrl":"https://icboms.com/microchip/DSC400-4334Q0022KE1","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4334Q0022KE1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard) MEMS oscillator, quad-output: 125 MHz, 100 MHz, 100 MHz, 125 MHz, HCSL/LVDS output, 2.25V~3.6V supply, -20°C~70°C, 20-VFQFN exposed pad.","salesMarkdown":"## Quad-output MEMS oscillator for mixed-speed clock trees The 125 MHz lanes typically feed high-speed serial interfaces (PCIe, SATA, 10GbE PHY), while the 100 MHz lanes serve the system bus or reference clock — a common split in networking and compute blades. Supply voltage spans 2.25V to 3.6V, so the same part runs on a 2.5V or 3.3V rail without a separate regulator — one BOM line covers both power domains. Housed in a 20-VFQFN exposed pad package measuring 5.00 mm x 3.20 mm with a 0.90 mm height, this oscillator requires a thermal pad on the PCB for heat dissipation — the exposed pad must be soldered to a ground plane to keep the MEMS die within its -20°C to 70°C commercial operating range. ## Active lifecycle with no replacement watch No official successor or pin-compatible alternative is listed from Microchip; the DSC400 series is the current generation. If a board comes across the repair bench with a scorch mark near this QFN, the Active status means a direct replacement is orderable without a board spin.","metaTitle":"DSC400-4334Q0022KE1 MEMS XO – Quad Output 125/100 MHz","metaDescription":"Microchip DSC400-4334Q0022KE1 XO (Standard) MEMS oscillator: four outputs (125 MHz, 100 MHz), HCSL/LVDS, 2.25-3.6V, -20°C~70°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":"HCSL, LVDS","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":"±50ppm","Frequency - Output 1":"125MHz","Frequency - Output 2":"100MHz","Frequency - Output 3":"100MHz","Frequency - Output 4":"125MHz","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/335300f4aac67d4baea752fcc611441d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output frequency of DSC400-4334Q0022KE1?","answer":"This oscillator provides four outputs: two at 125 MHz and two at 100 MHz. The output type is selectable between HCSL and LVDS."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4334Q0022KE1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4334Q0022KE1 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}}