{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1122BI2-156.2500T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1122BI2-156.2500T","canonicalUrl":"https://icboms.com/microchip/DSC1122BI2-156.2500T","factsUrl":"https://icboms.com/api/mcp/products/DSC1122BI2-156.2500T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1122BI2-156.2500T, XO (Standard) MEMS oscillator, 156.25 MHz LVPECL output, ±25 ppm stability, -40°C to 85°C, 6-SMD, Tape & Reel","salesMarkdown":"## 156.25 MHz LVPECL clock source — MEMS, not quartz The LVPECL output is a differential signal that drives 50-ohm terminated lines cleanly at this frequency, which is why 156.25 MHz shows up in 10GbE and Fibre Channel reference clocks. That means the clock edge stays within 25 ppm of 156.25 MHz whether the board is in a freezing cabinet or a hot engine bay — tight enough for most Ethernet and SerDes PLLs to hold lock without re-synchronisation. ## Active production — no EOL concern for new designs Microchip lists the DSC1122BI2-156.2500T as Active. The 6-SMD, No Lead package is a standard 5.0mm x 3.2mm footprint, common enough that a second-source MEMS oscillator from another vendor can fit the same pads if the BOM ever needs a cross.","metaTitle":"DSC1122BI2-156.2500T MEMS Oscillator","metaDescription":"DSC1122BI2-156.2500T: XO (Standard) MEMS oscillator, 156.25 MHz LVPECL output, ±25 ppm stability, -40°C to 85°C, 6-SMD. Active production. RFQ for pricing.","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":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1122","Frequency Stability":"±25ppm","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":"$3.0150","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9eb455e34e1b4ad4aed847bfc84d48fa.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1122BI2-156.2500T/alternatives.json"},"ai":{"faq":[{"question":"What is the output type and what drives the choice of LVPECL?","answer":"The output is LVPECL. LVPECL is a differential signal that delivers low jitter and fast edge rates into 50-ohm terminated lines. It is common for high-speed reference clocks in 10GbE, Fibre Channel, and SerDes applications where the receiver expects a differential input with a DC bias around Vcc - 1.3V."},{"question":"How do I get pricing and availability for the DSC1122BI2-156.2500T?","answer":"Submit an RFQ against your BOM quantity. No stock-holding claim is made here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1122BI2-156.2500T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1122BI2-156.2500T 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}}