{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK01020ISQX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK01020ISQX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMK01020ISQX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMK01020ISQX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK01020ISQX/NOPB Fanout Buffer (Distribution), Divider, 1:8 LVPECL outputs, 1.6 GHz max, 48-WFQFN Exposed Pad, Tape & Reel.","salesMarkdown":"## 1.6 GHz fanout buffer in a 7x7 mm QFN The LMK01020ISQX/NOPB is a 1:8 fanout buffer and divider from Texas Instruments, accepting a differential clock input and delivering eight LVPECL outputs at frequencies up to 1.6 GHz. The 1:8 ratio means a single clean clock source can feed eight downstream PLLs, ADCs, or FPGAs without adding a second distribution stage. ## What the 1.6 GHz ceiling and LVPECL output mean for your clock tree Rated for 1.6 GHz maximum input frequency, this buffer covers the full range of common telecom and data-converter reference clocks — 10 MHz to 1.6 GHz — without needing a different part for the lower end. The LVPECL output swing is a differential 800 mV typical into 50 Ω to VCC-2V, which is the standard level for driving high-speed ADC clock inputs and SiGe PLL reference pins. The differential input and output path (Yes/Yes per the spec) means the part preserves the common-mode rejection of the incoming clock — a single-ended clock requires an external balun or AC-coupling with a bias network before the input pins. The 3.15 V to 3.45 V supply rail is tighter than a typical 3.3 V ±10 %; the 300 mV window keeps the LVPECL output swing and the internal divider logic within their linear range, so the decoupling on the 3.3 V plane should be local and low-ESR.","metaTitle":"LMK01020ISQX/NOPB 1.6 GHz Fanout Buffer, 1:8 LVPECL, 48-WQFN","metaDescription":"Texas Instruments LMK01020ISQX/NOPB clock fanout buffer, 1.6 GHz max, 1:8 LVPECL outputs, differential I/O, 48-WQFN, active production, sourced per RFQ.","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), Divider","Input":"Clock","Output":"LVPECL","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Package / Case":"48-WFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"1.6 GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Number of Circuits":"1","Base Product Number":"LMK01020","Ratio - Input:Output":"1:8","Operating Temperature":"-40°C~85°C","Supplier Device Package":"48-WQFN (7x7)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.5045","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/815b4a63fa4862ee37c5780011bcfa1f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK01020ISQX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the input and output type of the LMK01020ISQX/NOPB?","answer":"The input is a differential clock. The output is LVPECL. Both input and output paths are differential (Yes/Yes), meaning the part accepts and delivers differential signals natively."},{"question":"What package does the LMK01020ISQX/NOPB come in?","answer":"It is supplied in a 48-lead WFQFN with an exposed pad, also referred to as a 48-WQFN (7x7 mm). The package is surface-mount and supplied on tape and reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK01020ISQX-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/LMK01020ISQX-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}}