{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMX2531LQ1910E/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMX2531LQ1910E-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMX2531LQ1910E-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMX2531LQ1910E%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMX2531LQ1910E/NOPB, PLL frequency synthesizer (RF), integrated VCO, 2.028 GHz max output, CMOS output, 2.8V–3.2V supply, -40°C to 85°C, 36-WQFN (6x6 mm).","salesMarkdown":"## RF synthesizer with integrated VCO – 2.028 GHz ceiling The LMX2531LQ1910E/NOPB is a PLL-based frequency synthesizer (RF) with an on-chip VCO, covering up to 2.028 GHz. That maximum frequency sets the upper bound for the local oscillator or carrier generation in a radio chain — if your target frequency is above that, this part won't lock. The CMOS output is single-ended, so the synthesizer feeds a standard 50-ohm trace or a mixer LO port without an external balun. ## Industrial temperature grade and supply margin The supply range of 2.8V to 3.2V gives a 400 mV window — tight enough that a 3.3V rail needs a local LDO, not a direct tie. The 2:2 input-to-output ratio means two clock inputs can be selected and two outputs are available, but both paths are single-ended — no differential signalling on this die. ## Sourcing and fit for the BOM The 36-pin QFN footprint is common across the LMX2531 family, so a board designed for one frequency variant can often accept another with a firmware or loop-filter component change — but the VCO tuning range is fixed per order code. For reel-quantity pricing and lead time, submit an RFQ against your target volume.","metaTitle":"LMX2531LQ1910E/NOPB PLL Frequency Synthesizer – Texas","metaDescription":"Texas Instruments LMX2531LQ1910E/NOPB PLL frequency synthesizer with integrated VCO, 2.028 GHz max output, CMOS output, -40°C to 85°C, 36-WQFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Frequency Synthesizer (RF)","Input":"Clock","Output":"CMOS","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"36-WFQFN Exposed Pad","Frequency - Max":"2.028GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2.8V ~ 3.2V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"2:2","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"36-WQFN (6x6)","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.31","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.31000","currency":"USD"},{"qty":10,"price":"$10.39700","currency":"USD"},{"qty":25,"price":"$9.96600","currency":"USD"},{"qty":100,"price":"$8.78070","currency":"USD"},{"qty":250,"price":"$8.34972","currency":"USD"},{"qty":500,"price":"$7.81104","currency":"USD"},{"qty":1250,"price":"$7.62300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fdd610e3e34ac7c680218100a27ac57e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum frequency of LMX2531LQ1910E/NOPB?","answer":"The device synthesizes up to 2.028 GHz. That is the absolute upper limit of the VCO tuning range — the actual output frequency is set by the loop-filter components and the reference input. If your application requires a frequency above 2.028 GHz, this part will not lock."},{"question":"What are the alternatives to LMX2531LQ1910E/NOPB?","answer":"The CD74HCT7046AE is a through-hole PLL with a 38 MHz maximum frequency and a different package and supply voltage — it is not a functional substitute for an RF synthesizer operating at gigahertz frequencies. For a drop-in replacement, look at other order codes in the LMX2531 family with different VCO frequency ranges; the package and pinout are consistent across the series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMX2531LQ1910E-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/LMX2531LQ1910E-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}