{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1123CI1-156.2500T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1123CI1-156.2500T","canonicalUrl":"https://icboms.com/microchip/DSC1123CI1-156.2500T","factsUrl":"https://icboms.com/api/mcp/products/DSC1123CI1-156.2500T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1123CI1-156.2500T, XO (Standard) MEMS oscillator, 156.25 MHz LVDS output, ±50 ppm stability, AEC-Q100, -40 to 85°C, 6-SMD no-lead, 2.25-3.63 V supply, enable/disable function.","salesMarkdown":"## Why this MEMS oscillator beats a quartz can The DSC1123CI1-156.2500T: A standard quartz oscillator at 156.25 MHz has a startup time in the milliseconds and a shock limit around 3000 g. The DSC1123 uses a MEMS resonator — it starts in microseconds and survives 50,000 g shock, which is why it carries AEC-Q100 qualification for the under-hood vibration environment. The 156.25 MHz LVDS output is a common reference for 10GbE and SFP+ modules — the differential pair reduces EMI and keeps the jitter budget tight for the SerDes PLL. ## Supply range and disable function matter for the power tree The 2.25 V to 3.63 V supply range covers 2.5 V and 3.3 V rails without an external regulator — a single supply feeds the oscillator and the LVDS termination bias. Enable/Disable pin pulls the output to high-Z and drops supply current from 32 mA to 22 mA — useful for power-cycled Ethernet ports or test-mode isolation. ## Lifecycle — active and automotive-graded","metaTitle":"DSC1123CI1-156.2500T MEMS Oscillator 156.25 MHz LVDS","metaDescription":"Microchip DSC1123CI1-156.2500T XO, 156.25 MHz LVDS output, ±50 ppm stability, AEC-Q100, -40 to 85°C, 6-SMD. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"LVDS","Series":"DSC1123","Package":"Tape & Reel (TR)","Ratings":"AEC-Q100","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 ~ 3.63V","Base Product Number":"DSC1123","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C ~ 85°C","Current - Supply (Max)":"32mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.2600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/32c33983bfd645bac8d0b2ac5207c872.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can DSC1123CI1-156.2500T replace a standard quartz oscillator on my board?","answer":"Yes, if the board has a 6-SMD no-lead footprint and the supply rail is between 2.25 V and 3.63 V. The MEMS oscillator is a drop-in for a quartz XO of the same package and output type — no external load capacitors or feedback resistor needed. The LVDS output is differential, so the receiver must accept LVDS levels; it will not drive a single-ended CMOS input without a level translator."},{"question":"How does DSC1123CI1-156.2500T differ from the DSC1123CI2 series?","answer":"The CI1 suffix indicates ±50 ppm frequency stability; the CI2 suffix is ±25 ppm. Both are AEC-Q100 qualified and share the same 6-SMD package, supply range, and 156.25 MHz LVDS output. The tighter stability of the CI2 series costs more and is needed for precision Ethernet timing; the CI1 is sufficient for most SerDes reference clocks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1123CI1-156.2500T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1123CI1-156.2500T 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}}