{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMX2541SQ3320E/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMX2541SQ3320E-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMX2541SQ3320E-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMX2541SQ3320E%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMX2541SQ3320E/NOPB, PLL-based frequency synthesizer (RF), single circuit, 2:2 input:output ratio, 3.6 GHz max frequency, 3.15V–3.45V supply, 36-WQFN (6x6 mm), -40°C to 85°C.","salesMarkdown":"## RF synthesizer with integrated VCO — band reach and board-space trade-off The LMX2541SQ3320E/NOPB is a PLL frequency synthesizer (RF) with an on-chip VCO, covering output frequencies up to 3.6 GHz. That range spans ISM bands at 2.4 GHz, cellular infrastructure, and test-equipment local oscillators — no external multiplier needed for most sub-4 GHz designs. Integrating the PLL and VCO in a single 36-WQFN (6x6 mm) package shrinks the footprint compared to a discrete PLL + VCO pair, but the exposed thermal pad demands a solid ground-plane via array for heat sinking — the datasheet's recommended layout is worth following closely. The supply range is 3.15 V to 3.45 V — a tight 300 mV window that rules out shared 3.3 V rails with heavy ripple. A dedicated low-noise LDO for the VCO supply is typical; the phase-noise plot degrades noticeably if the supply noise exceeds the PSRR budget at the loop bandwidth. The 36-WQFN package with exposed pad helps keep the VCO junction temperature below the 125°C absolute max even at 85°C ambient, provided the PCB thermal design is adequate. ## Active lifecycle — no near-term obsolescence risk Procurement can commit to this part for new designs without a near-term obsolescence watch. The ROHS3 compliance covers current global environmental regulations. Available in Tape & Reel (TR) and Cut Tape (CT) packaging — the TR option suits automated pick-and-place for volume production; CT works for prototype or low-volume builds. Surface-mount only; no through-hole variant exists.","metaTitle":"LMX2541SQ3320E/NOPB PLL Frequency Synthesizer – TI, 3.6 GHz","metaDescription":"Texas Instruments LMX2541SQ3320E/NOPB: PLL frequency synthesizer with integrated VCO, 3.6 GHz max output, -40°C to 85°C, 36-WQFN. Active lifecycle, ROHS3.","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":"Clock","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"36-WFQFN Exposed Pad","Frequency - Max":"3.6GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Divider/Multiplier":"Yes/Yes","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":"$13.37","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.37000","currency":"USD"},{"qty":10,"price":"$12.28700","currency":"USD"},{"qty":25,"price":"$11.77760","currency":"USD"},{"qty":100,"price":"$10.37720","currency":"USD"},{"qty":250,"price":"$9.86784","currency":"USD"},{"qty":500,"price":"$9.23122","currency":"USD"},{"qty":1000,"price":"$9.00900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a7bd9d926ffe72f57885e775b939e2de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the LMX2541SQ3320E/NOPB or request a quote?","answer":"Submit an RFQ with your target quantity and delivery timeline; pricing and stock availability are confirmed at quote time."},{"question":"What is the maximum output frequency of the LMX2541SQ3320E/NOPB?","answer":"The maximum output frequency is 3.6 GHz, making it suitable for 2.4 GHz ISM bands, 3.5 GHz WiMAX, and general-purpose local oscillators up to the S-band."},{"question":"What package does the LMX2541SQ3320E/NOPB use?","answer":"It comes in a 36-WFQFN exposed-pad package, with the supplier device package designated as 36-WQFN (6x6 mm)."},{"question":"Is the LMX2541SQ3320E/NOPB compatible with 3.3V logic?","answer":"The supply voltage range is 3.15 V to 3.45 V, which overlaps with nominal 3.3V rails. However, the tight tolerance means the supply should be clean — a 3.3V rail with ±5% tolerance (3.135 V–3.465 V) just barely stays inside the window. A dedicated LDO is recommended to keep noise low."},{"question":"How is the LMX2541SQ3320E/NOPB frequency programmed?","answer":"Frequency programming is handled via the PLL's internal registers, typically through a serial interface (the evidence does not specify the exact protocol — SPI or I²C is common for this family). Consult the Texas Instruments datasheet for register map and programming sequence."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMX2541SQ3320E-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/LMX2541SQ3320E-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}}