{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1122BI2-155.5200T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1122BI2-155.5200T","canonicalUrl":"https://icboms.com/microchip/DSC1122BI2-155.5200T","factsUrl":"https://icboms.com/api/mcp/products/DSC1122BI2-155.5200T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1122BI2-155.5200T, XO (Standard) MEMS oscillator, 155.52 MHz LVPECL output, ±25 ppm stability, -40°C to 85°C, 6-SMD, Tape & Reel","salesMarkdown":"## 155.52 MHz LVPECL MEMS oscillator for networking line rates The DSC1122BI2-155.5200T is a Microchip MEMS-based XO (Standard) delivering a 155.52 MHz LVPECL output — the exact frequency used as a reference for OC-3, Fast Ethernet, and 10GbE line-rate clocking. Its ±25 ppm frequency stability covers standard Ethernet jitter budgets without an external VCXO or PLL, and the LVPECL output drives 50-ohm terminated traces directly into FPGA or SerDes clock inputs. ## MEMS resonator vs quartz — when to swap It also starts up faster, eliminating the crystal's startup delay on power-on reset. Pin-compatible with standard 6-SMD quartz oscillators of the same footprint (5.0 × 3.2 mm), the DSC1122BI2-155.5200T can drop into an existing board layout without a PCB spin, provided the supply voltage falls within its 2.25 V to 3.6 V range.","metaTitle":"DSC1122BI2-155.5200T 155.52 MHz LVPECL MEMS Oscillator","metaDescription":"Active Microchip DSC1122BI2-155.5200T: 155.52 MHz LVPECL XO, MEMS resonator, ±25 ppm, -40°C to 85°C, 6-SMD. 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":"155.52 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","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9eb455e34e1b4ad4aed847bfc84d48fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can the DSC1122BI2-155.5200T replace a quartz oscillator on my board?","answer":"Yes — the MEMS resonator is pin-compatible with standard 6-SMD quartz oscillators in the 5.0 × 3.2 mm footprint. No PCB layout change is needed if those conditions are met."},{"question":"What is the output type of the DSC1122BI2-155.5200T?","answer":"LVPECL (Low-Voltage Positive Emitter-Coupled Logic) — a differential, 50-ohm terminated output standard for high-speed clock distribution to FPGAs, SerDes, and clock buffers."},{"question":"Does the DSC1122BI2-155.5200T have an enable/disable function?","answer":"Yes — the Enable/Disable pin tri-states the output when pulled low, reducing supply current from 58 mA to 22 mA. This allows power gating the oscillator during system sleep modes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1122BI2-155.5200T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1122BI2-155.5200T 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}}