{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CI2-049.1520","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CI2-049.1520","canonicalUrl":"https://icboms.com/microchip/DSC1121CI2-049.1520","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CI2-049.1520","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121CI2-049.1520, a 49.152 MHz XO (Standard) with CMOS output, MEMS resonator, 2.25V–3.6V supply, -40°C to +85°C, 6-VDFN package.","salesMarkdown":"It outputs a CMOS-level clock, so it drives the clock input of an MCU, FPGA, or Ethernet PHY directly without needing an external level translator. The operating supply range spans 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails without an extra regulator. Frequency stability is ±25 ppm absolute pull range (APR). For a 49.152 MHz clock feeding a 1000BASE-T PHY or a video pixel clock, that stability keeps the jitter budget within the PHY's or serializer's input tolerance. The 6-VDFN package measures 3.20 mm × 2.50 mm with a seated height of 0.90 mm. That small footprint leaves room for decoupling caps close to the supply pin — a 0.1 µF ceramic right at the Vdd pin is standard practice for this oscillator family. No special via-in-pad required.","metaTitle":"DSC1121CI2-049.1520 MEMS Oscillator – 49.152 MHz, CMOS","metaDescription":"DSC1121CI2-049.1520 from Microchip Technology: 49.152 MHz XO, CMOS output, MEMS resonator, -40°C to +85°C, 2.25V–3.6V supply. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"CMOS","Series":"DSC1121","Package":"Tube","Ratings":"-","Function":"Enable/Disable","Frequency":"49.152 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-VDFN","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":"DSC1121","Frequency Stability":"-","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"±25ppm","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1121CI2-049.1520/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy DSC1121CI2-049.1520 and how do I request a quote?","answer":"This part is available to order through our independent distribution channel. Submit an RFQ with your target quantity and target price — we confirm availability and current pricing at quote time. The part is active in production, so lead times are typically quoted against the order quantity."},{"question":"Can DSC1121CI2-049.1520 replace a standard quartz oscillator?","answer":"Yes — it is a drop-in replacement for a 49.152 MHz quartz oscillator in the same 6-VDFN footprint, as long as the supply voltage (2.25 V–3.6 V) and output type (CMOS) match the existing design. The MEMS resonator offers better shock and vibration tolerance than quartz."},{"question":"What is the difference between DSC1121 and DSC1122?","answer":"The DSC1121 series (this part) is a standard XO with CMOS output. The DSC1122 series typically offers a different output type (LVDS or HCSL) for differential clocking. For single-ended CMOS clock distribution, the DSC1121 is the correct choice."},{"question":"Is DSC1121CI2-049.1520 RoHS compliant?","answer":"Microchip Technology lists this part as RoHS compliant. The 6-VDFN package uses lead-free solder terminals, suitable for RoHS-compliant assembly processes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CI2-049.1520","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CI2-049.1520 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}}