{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK04000BISQX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK04000BISQX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMK04000BISQX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMK04000BISQX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK04000BISQX/NOPB Clock Conditioner, PLL Yes, 1.296 GHz max, LVCMOS/LVDS/LVPECL input, LVCMOS/2VPECL/LVPECL output, 48-WFQFN Exposed Pad, Tape & Reel.","salesMarkdown":"## Clock conditioning with integrated PLL — what the 1.296 GHz ceiling buys you The LMK04000BISQX/NOPB is a Clock Conditioner — it cleans up and regenerates a reference clock using an integrated PLL. The maximum output frequency is 1.296 GHz, which places it in the range needed for high-speed serial links (Gigabit Ethernet, PCIe Gen 1/2, FPGA transceiver reference clocks) where jitter and phase noise matter. The PLL locks to an input from 0 Hz up to the rated max, and the device outputs up to seven copies of the conditioned clock via a 2:7 input-to-output ratio. ## Signal standard support and supply rail tolerance The device accepts LVCMOS, LVDS, and LVPECL inputs and outputs LVCMOS, 2VPECL, or LVPECL. All inputs and outputs are differential-capable, which is typical for high-frequency clock distribution where common-mode noise rejection is needed. The supply voltage range is narrow — 3.15 V to 3.45 V — so the 3.3 V rail must be regulated within ±4.5 %. A standard 3.3 V LDO with 1 % accuracy covers this comfortably, but a noisy switching regulator without post-filtering may push the rail outside the window. ## Package and thermal — 48-WQFN with exposed pad The part comes in a 48-lead WFQFN with an exposed pad, supplier device package 48-WQFN (7x7 mm).","metaTitle":"LMK04000BISQX/NOPB Clock Conditioner, 1.296 GHz, Active","metaDescription":"Texas Instruments LMK04000BISQX/NOPB Clock Conditioner with integrated PLL, 1.296 GHz max, LVCMOS/LVDS/LVPECL I/O, 48-WQFN, active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","PLL":"Yes","Type":"Clock Conditioner","Input":"LVCMOS, LVDS, LVPECL","Output":"LVCMOS, 2VPECL, LVPECL","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Package / Case":"48-WFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"1.296GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Divider/Multiplier":"Yes/Yes","Number of Circuits":"1","Base Product Number":"LMK04000","Ratio - Input:Output":"2:7","Operating Temperature":"-40°C~85°C","Supplier Device Package":"48-WQFN (7x7)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.5915","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2739492f39a7ccf814dd60aec1ed6a91.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK04000BISQX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What input and output signal types does LMK04000BISQX/NOPB support?","answer":"The device accepts LVCMOS, LVDS, and LVPECL inputs and outputs LVCMOS, 2VPECL, or LVPECL. All signal paths are differential-capable, which is required for clean clock distribution at frequencies up to 1.296 GHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK04000BISQX-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK04000BISQX-NOPB 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}}