{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-1111Q0090KE2T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-1111Q0090KE2T","canonicalUrl":"https://icboms.com/microchip/DSC400-1111Q0090KE2T","factsUrl":"https://icboms.com/api/mcp/products/DSC400-1111Q0090KE2T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series, XO (Standard), quad-output MEMS oscillator, 10 MHz, 27 MHz, 148.5 MHz, 125 MHz, LVCMOS, 2.25 V ~ 3.6 V, ±25 ppm, -20°C ~ 70°C, 20-VFQFN Exposed Pad, Tape & Reel","salesMarkdown":"## Quad-output MEMS clock in a single 5×3.2 mm QFN The DSC400-1111Q0090KE2T packages four independent LVCMOS clock outputs — 10 MHz, 27 MHz, 148.5 MHz, and 125 MHz — from a single MEMS resonator in a 20-pin QFN with exposed pad. Frequency stability is ±25 ppm across the -20°C to +70°C commercial temperature range — tight enough for 10/100 Ethernet reference clocks and common video pixel rates without the cost of a TCXO. The 2.25 V to 3.6 V supply range means this oscillator runs directly off a 2.5 V or 3.3 V rail with no external LDO. A board that mixes both voltage domains can use the same DSC400 order code across both sections, simplifying procurement and qualification. ## Active production — no end-of-life urgency Microchip lists the DSC400-1111Q0090KE2T as Active. The MEMS resonator construction avoids the lead-time variability associated with quartz-based oscillators, making this a stable choice for current designs. ## Enable/Disable function and package notes The 20-VFQFN with exposed pad demands a thermal via array under the paddle for heat sinking; the 0.90 mm height fits standard 1.6 mm PCB stack-ups.","metaTitle":"DSC400-1111Q0090KE2T MEMS XO — 4-Output LVCMOS Clock","metaDescription":"Microchip DSC400-1111Q0090KE2T: quad-output MEMS oscillator, 10/27/148.5/125 MHz, LVCMOS, 2.25-3.6V, ±25 ppm, -20 to +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":"LVCMOS","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":"10MHz","Frequency - Output 2":"27MHz","Frequency - Output 3":"148.5MHz","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/92effcbeab49e36cc7458b2e824c3f24.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the DSC400-1111Q0090KE2T's frequency stability and what does it mean for my timing budget?","answer":"The ±25 ppm stability is specified over the -20°C to +70°C range. For a 125 MHz output, ±25 ppm equals ±3125 Hz of absolute frequency error — well within the capture range of a standard Ethernet PHY or FPGA PLL. The MEMS resonator also exhibits lower g-sensitivity than a quartz crystal, which matters in systems with fan vibration or mechanical shock."},{"question":"Is the DSC400-1111Q0090KE2T compatible with a 2.5 V supply?","answer":"Yes. The supply voltage range is 2.25 V to 3.6 V, so a 2.5 V rail is well within the operating window. The LVCMOS output levels track the supply voltage — at 2.5 V the output high is approximately 2.5 V, which is compatible with 2.5 V logic families."},{"question":"What are the four output frequencies and their typical applications?","answer":"Output 1: 10 MHz (common reference for Ethernet PHY or MCU). Output 2: 27 MHz (standard pixel clock for 480p/576p video encoders). Output 3: 148.5 MHz (common for 1080p HDMI or SDI video clocks). Output 4: 125 MHz (standard for Gigabit Ethernet MAC/PHY reference). The quad-output architecture lets a single oscillator feed multiple clock domains on a mixed-signal board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-1111Q0090KE2T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-1111Q0090KE2T 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}}