{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1122AE1-312.5000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1122AE1-312.5000T","canonicalUrl":"https://icboms.com/microchip/DSC1122AE1-312.5000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1122AE1-312.5000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1122AE1-312.5000T, XO (Standard) with MEMS resonator, 312.5 MHz LVPECL output, 2.25V-3.6V supply, -20°C to 70°C, 6-SMD package.","salesMarkdown":"## 312.5 MHz LVPECL MEMS oscillator — what the ratings mean The DSC1122AE1-312.5000T is a Microchip MEMS-based XO (Standard) delivering a 312.5 MHz LVPECL output from a 2.25V to 3.6V supply rail. The LVPECL signalling at this frequency is typical for high-speed SerDes, FPGA reference clocks, and 10G Ethernet PHY applications where edge jitter and rise-time symmetry matter. The 58 mA maximum supply current is the worst-case draw at full load; in a typical 3.3 V application the actual current is lower, but the 58 mA figure is what you budget for the power rail. ## Active lifecycle — sourcing for production The 6-SMD, No Lead Exposed Pad package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm. The 0.50 mm pad pitch is standard for this footprint; a 2-layer board handles the fan-out without trouble.","metaTitle":"DSC1122AE1-312.5000T MEMS Oscillator 312.5 MHz LVPECL","metaDescription":"Microchip DSC1122AE1-312.5000T XO (Standard) with MEMS resonator, 312.5 MHz LVPECL output, 2.25V-3.6V supply, -20°C to 70°C. Active product, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"LVPECL","Series":"DSC1122","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","Frequency":"312.5 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.276\\\" L x 0.197\\\" W (7.00mm x 5.00mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1122","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"58mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9eb455e34e1b4ad4aed847bfc84d48fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the frequency of the DSC1122AE1-312.5000T?","answer":"The output frequency is 312.5 MHz, delivered as a differential LVPECL signal. This is a standard frequency for 10G Ethernet reference clocks, FPGA transceiver banks, and high-speed data converters."},{"question":"Is the DSC1122AE1-312.5000T RoHS compliant?","answer":"The evidence does not list a RoHS compliance statement, but the DSC1122 series from Microchip is generally RoHS-compliant and lead-free. Confirm with the manufacturer's datasheet or your compliance team if your BOM requires a formal declaration."},{"question":"Can I replace a quartz oscillator with this MEMS oscillator?","answer":"Yes, the DSC1122AE1-312.5000T is a drop-in replacement for a standard 7.00 mm x 5.00 mm quartz XO with LVPECL output, provided the supply voltage and frequency match. The MEMS resonator eliminates the quartz startup time and is more resistant to vibration and shock. No external load capacitors are needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1122AE1-312.5000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1122AE1-312.5000T 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}}