{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK04821NKDT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK04821NKDT","canonicalUrl":"https://icboms.com/texas-instruments/LMK04821NKDT","factsUrl":"https://icboms.com/api/mcp/products/LMK04821NKDT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PLLatinum™ series, LMK04821NKDT, a dual-PLL jitter cleaner clock IC, 1.54 GHz max frequency, 3:15 input-to-output ratio, industrial temperature range, 64-WQFN package.","salesMarkdown":"## Dual-PLL jitter cleaner for high-speed clock trees The LMK04821NKDT is a dual-PLL jitter cleaner from TI's PLLatinum™ family, designed to clean up noisy reference clocks and distribute them across a system. It accepts LVCMOS, LVDS, or LVPECL inputs and outputs HSDS, LCPECL, LVCMOS, LVDS, or LVPECL formats, covering the signal types used in ADC/DAC clocking, SerDes reference, and FPGA transceiver links. The 3:15 input-to-output ratio means three independent input references can be fanned out to fifteen outputs, which can eliminate external clock buffers in a multi-IC clock tree. The maximum output frequency of 1.54 GHz supports high-speed serial interfaces and RF sampling converters. The supply voltage range of 3.15 V to 3.45 V means it runs from a 3.3 V rail with margin — confirm your regulator's tolerance stays within that window. All inputs and outputs are differential-capable, which is necessary for maintaining signal integrity at the 1.54 GHz ceiling. Single-ended LVCMOS is also supported for lower-speed distribution paths. No official successor or second-source is listed — this is a single-source TI part. For BOM risk mitigation, confirm the supply channel and lead time at quote stage. ## Package and footprint checklist Housed in a 64-WQFN (9x9 mm) with an exposed thermal pad. No special MSL handling beyond standard JEDEC Level 3 is indicated, but verify the moisture sensitivity level on the latest TI packing label before reflow.","metaTitle":"LMK04821NKDT TI PLLatinum Jitter Cleaner Clock IC, 1.54 GHz","metaDescription":"Texas Instruments LMK04821NKDT PLLatinum jitter cleaner clock IC. Dual PLL, 1.54 GHz max frequency, 3:15 input:output ratio, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"PLLatinum™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","PLL":"Yes","Type":"Jitter Cleaner","Input":"LVCMOS, LVDS, LVPECL","Output":"HSDS, LCPECL, LVCMOS, LVDS, LVPECL","Series":"PLLatinum™","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"64-WFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"1.54GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Base Product Number":"LMK04821","Ratio - Input:Output":"3:15","Operating Temperature":"-40°C~85°C","Supplier Device Package":"64-WQFN (9x9)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.2000","priceTiers":[{"qty":1,"price":"$24.20000","currency":"USD"},{"qty":10,"price":"$22.31500","currency":"USD"},{"qty":25,"price":"$21.31240","currency":"USD"},{"qty":100,"price":"$19.05570","currency":"USD"},{"qty":250,"price":"$18.17808","currency":"USD"},{"qty":500,"price":"$17.74050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cad63f57a0cfb04937f7177282ef1342.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK04821NKDT/alternatives.json"},"ai":{"faq":[{"question":"Does LMK04821NKDT work with a 3.3V supply?","answer":"Yes. The supply voltage range is 3.15 V to 3.45 V, so a nominal 3.3 V rail is within spec."},{"question":"What is the difference between LMK04821 and LMK04821NKDT?","answer":"The LMK04821 is the base product number; the NKDT suffix indicates the specific tape-and-reel packaging variant. The silicon and electrical specifications are identical. When ordering, use the full order code LMK04821NKDT to ensure the correct reel quantity and packaging format."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK04821NKDT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK04821NKDT 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}}