{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC400-4334Q0022KI2","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC400-4334Q0022KI2","canonicalUrl":"https://icboms.com/microchip/DSC400-4334Q0022KI2","factsUrl":"https://icboms.com/api/mcp/products/DSC400-4334Q0022KI2","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC400 series MEMS XO, 4 outputs (125 MHz, 100 MHz), HCSL/LVDS, 2.25-3.6 V supply, ±25 ppm stability, -40 to 85°C, 20-VFQFN exposed pad","salesMarkdown":"## Four-output MEMS clock generator The DSC400-4334Q0022KI2 is a MEMS-based XO (standard oscillator) that replaces up to four discrete quartz oscillators with a single 20-VFQFN package. It delivers two 125 MHz and two 100 MHz outputs in HCSL or LVDS format, covering common PCIe and Ethernet reference clock needs. The MEMS resonator is inherently more shock- and vibration-tolerant than a quartz crystal — useful for equipment that sees frequent handling or fan-induced vibration on the PCB. ## Supply voltage and temperature range Operating from 2.25 V to 3.6 V, this oscillator runs on either a 2.5 V or 3.3 V rail without an extra LDO. The wide range also helps during power-up sequencing if the rail ramps slowly. ## Enable/disable and package footprint An enable/disable pin lets the system gate the outputs for power savings during idle modes — the oscillator stops toggling, reducing dynamic current draw. The 20-VFQFN with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height) requires a thermal via pattern under the pad for heat sinking. The 0.50 mm pitch demands careful fan-out on a two-layer board; a four-layer stack-up is safer for signal integrity on the HCSL/LVDS lines.","metaTitle":"DSC400-4334Q0022KI2 MEMS XO – 4 Outputs, 125/100 MHz, Active","metaDescription":"Microchip DSC400-4334Q0022KI2 MEMS XO: 4 outputs (125 MHz, 100 MHz), HCSL/LVDS, 2.25-3.6 V, -40 to 85°C, ±25 ppm. 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)","Height":"0.035\\\" (0.90mm)","Output":"HCSL, LVDS","Series":"DSC400","Package":"Tube","Function":"Enable/Disable","Base Resonator":"MEMS","Package / Case":"20-VFQFN Exposed Pad","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":"DSC400","Frequency Stability":"±25ppm","Frequency - Output 1":"125MHz","Frequency - Output 2":"100MHz","Frequency - Output 3":"100MHz","Frequency - Output 4":"125MHz","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/335300f4aac67d4baea752fcc611441d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many outputs does the DSC400-4334Q0022KI2 have, and at what frequencies?","answer":"Four outputs: two at 125 MHz and two at 100 MHz. The output format is HCSL or LVDS, selectable per the device configuration."},{"question":"Does the DSC400-4334Q0022KI2 have an enable/disable pin?","answer":"Yes, the enable/disable function is built in. Pulling the pin low stops the outputs, reducing dynamic power consumption."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC400-4334Q0022KI2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC400-4334Q0022KI2 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}}