{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1122CI5-156.2500T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1122CI5-156.2500T","canonicalUrl":"https://icboms.com/microchip/DSC1122CI5-156.2500T","factsUrl":"https://icboms.com/api/mcp/products/DSC1122CI5-156.2500T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1122CI5-156.2500T, XO (Standard) MEMS oscillator, 156.25 MHz LVPECL output, ±10 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-SMD package.","salesMarkdown":"## 156.25 MHz LVPECL MEMS oscillator for high-speed clocking The DSC1122CI5-156.2500T is a MEMS-based XO (Standard) oscillator delivering a 156.25 MHz LVPECL output — a common reference for 10 Gigabit Ethernet, Fibre Channel, and high-speed serial links where the LVPECL swing provides the noise margin needed over long board traces. Supply voltage spans 2.25 V to 3.6 V, so the same BOM line serves both 2.5 V and 3.3 V clock domains without a level translator on the oscillator power pin. The MEMS resonator construction eliminates the quartz crystal's cold-start and vibration sensitivity issues, making this oscillator a drop-in for designs that need a reliable 156.25 MHz reference in industrial or outdoor equipment. ## 6-SMD package and Enable/Disable function Housed in a 3.20 mm x 2.50 mm 6-SMD no-lead package, the oscillator fits tight board layouts; the Enable/Disable pin lets the system power down the output to 22 mA max supply current during sleep modes.","metaTitle":"DSC1122CI5-156.2500T Microchip 156.25 MHz LVPECL MEMS","metaDescription":"Active Microchip DSC1122CI5-156.2500T: 156.25 MHz LVPECL XO, ±10 ppm stability, -40°C to 85°C, 6-SMD.","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":"156.25 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1122","Frequency Stability":"±10ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°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 closest pin-compatible alternative to DSC1122CI5-156.2500T?","answer":"Within the DSC1122 series, other frequency variants share the same 6-SMD package and pinout — the base product number DSC1122 covers the family. For a direct 156.25 MHz LVPECL replacement, confirm the frequency stability and supply voltage range match your design; the ±10 ppm and 2.25 V–3.6 V specs are specific to this order code."},{"question":"Can DSC1122CI5-156.2500T work with a 3.3 V supply?","answer":"Yes. The LVPECL output swing scales with the supply, so the termination network should be designed for VCC = 3.3 V to maintain the correct DC bias at the receiver."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1122CI5-156.2500T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1122CI5-156.2500T 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}}