{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-3443Q0022KE1","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-3443Q0022KE1","canonicalUrl":"https://icboms.com/microchip/DSC400-3443Q0022KE1","factsUrl":"https://icboms.com/api/mcp/products/DSC400-3443Q0022KE1","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, Type XO (Standard), MEMS base resonator, four outputs: 125 MHz, 100 MHz, 100 MHz, 125 MHz, HCSL / LVDS, ±50 ppm stability, 2.25 V–3.6 V supply, -20°C to +70°C, 20-VFQFN exposed pad.","salesMarkdown":"## MEMS XO with quad HCSL/LVDS outputs It delivers four fixed-frequency outputs: two at 125 MHz and two at 100 MHz, each configurable as HCSL or LVDS signaling. The ±50 ppm frequency stability over the -20°C to +70°C commercial range is adequate for most PCIe Gen 1/2/3 reference clocks and standard Ethernet PHY XTAL inputs, but a tighter stability (±25 ppm or better) is needed for SyncE or IEEE 1588 PTP grandmaster clocks. Supply voltage spans 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails without an intermediate regulator — one less BOM line for the power tree. ## Package, layout, and thermal pad The 20-VFQFN with exposed pad measures 5.00 mm x 3.20 mm and stands 0.90 mm tall.","metaTitle":"DSC400-3443Q0022KE1 MEMS XO – 125/100 MHz Quad HCSL/LVDS","metaDescription":"Microchip DSC400-3443Q0022KE1: active XO, MEMS resonator, 125/100 MHz quad output, HCSL/LVDS, ±50 ppm, -20°C to +70°C, 20-VFQFN.","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b1fa89bbb593bb9f15bbf883a84023ea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC400-3443Q0022KE1/alternatives.json"},"ai":{"faq":[{"question":"How can I order the DSC400-3443Q0022KE1 or check stock?","answer":"The DSC400-3443Q0022KE1 is an active Microchip part. Submit an RFQ with your target quantity and lead-time requirement; we source through independent distribution and confirm availability and pricing per order."},{"question":"Can the DSC400-3443Q0022KE1 replace a standard quartz oscillator in my design?","answer":"Yes — the MEMS resonator is functionally interchangeable with a quartz XO of the same output frequency, signaling (HCSL or LVDS), and supply voltage. The ±50 ppm stability and -20°C to +70°C temperature range match typical commercial quartz XO specifications, so a drop-in replacement is feasible if the footprint (20-VFQFN 5.00 mm x 3.20 mm) and pad layout match."},{"question":"Where can I find the datasheet and pinout for the DSC400-3443Q0022KE1?","answer":"The Microchip DSC400 series datasheet covers the full family, including the -3443Q0022KE1 variant. The datasheet includes the pinout for the 20-VFQFN package, recommended footprint, and the ordering code table that maps the suffix to output frequencies, stability, and temperature grade."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-3443Q0022KE1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-3443Q0022KE1 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}}