{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK00304SQX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK00304SQX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMK00304SQX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMK00304SQX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK00304SQX/NOPB Fanout Buffer (Distribution), Multiplexer, Translator, 3.1 GHz, 3.15V~3.45V, -40°C~85°C, 32-WQFN (5x5), Tape & Reel.","salesMarkdown":"## Clock distribution hub for high-speed serial links The Texas Instruments LMK00304SQX/NOPB is a 3.1 GHz fanout buffer, multiplexer, and translator that sits at the centre of a clock tree distributing reference clocks to multiple high-speed serial links. It accepts one of three input sources — CML, HCSL, HSTL, LVDS, LVPECL, SSTL, or a crystal — and fans out to five outputs in HCSL, LVCMOS, LVDS, or LVPECL formats, with all differential paths maintained end-to-end. ## 3.1 GHz bandwidth and IO standard flexibility The 3.1 GHz maximum frequency covers the full range of PCIe Gen 1 through Gen 5 reference clocks, 10GbE, and 100G/400G line-card timing. The 3:5 input-to-output ratio means three selectable clock sources feed five output banks — useful for redundant clock architectures where a primary and backup oscillator share the same buffer. Differential input and output paths (Yes/Yes per the spec) preserve signal integrity through the buffer; the part translates between input and output standards, so a CML source can drive LVDS loads without an external level shifter. ## 32-WQFN package and board integration The 32-WFQFN exposed-pad package (5 mm × 5 mm body) requires a thermal pad on the PCB to draw heat from the die. The supplier device package is 32-WQFN (5x5) — the same footprint as the standard 32-QFN, but the exposed pad dimensions and via pattern should match the TI recommended land pattern in the datasheet for thermal and electrical performance.","metaTitle":"LMK00304SQX/NOPB TI Fanout Buffer, 3.1 GHz, 32-WQFN","metaDescription":"Texas Instruments LMK00304SQX/NOPB fanout buffer, multiplexer, translator. 3.1 GHz max, 3:5 IO, differential IO, -40 to 85°C. Active, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","Type":"Fanout Buffer (Distribution), Multiplexer, Translator","Input":"CML, HCSL, HSTL, LVDS, LVPECL, SSTL, Crystal","Output":"HCSL, LVCMOS, LVDS, LVPECL","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Package / Case":"32-WFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"3.1 GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Number of Circuits":"1","Base Product Number":"LMK00304","Ratio - Input:Output":"3:5","Operating Temperature":"-40°C~85°C","Supplier Device Package":"32-WQFN (5x5)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.3695","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ccd8bf3fd4ecbc0625e63e0b3318c8f8.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK00304SQX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What input and output standards does LMK00304SQX/NOPB support?","answer":"It accepts CML, HCSL, HSTL, LVDS, LVPECL, SSTL, or a crystal input, and outputs HCSL, LVCMOS, LVDS, or LVPECL. All differential paths are maintained end-to-end."},{"question":"What is the maximum frequency of LMK00304SQX/NOPB?","answer":"The maximum frequency is 3.1 GHz, covering PCIe Gen 1 through Gen 5 reference clocks, 10GbE, and 100G/400G line-card timing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK00304SQX-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/LMK00304SQX-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}}