{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMX2531LQ1700E/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMX2531LQ1700E-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMX2531LQ1700E-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMX2531LQ1700E%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMX2531LQ1700E/NOPB, PLL-based frequency synthesizer (RF), 1.77 GHz max, CMOS output, 2.8V–3.2V supply, 36-WFQFN exposed pad, -40°C to 85°C.","salesMarkdown":"## RF synthesizer with integrated VCO — 1.77 GHz ceiling The LMX2531LQ1700E/NOPB is a PLL-based frequency synthesizer with an integrated VCO, targeting RF local-oscillator or clock-generation applications up to 1.77 GHz. The 1.77 GHz maximum output frequency sets the upper bound for the carrier or LO — if your system needs a clean synthesised clock above that, this part hits the ceiling. The CMOS output drives standard digital loads directly; no external level translation needed for a typical baseband or FPGA reference input. Supply range is 2.8V to 3.2V, which aligns with common 3.0V or 3.3V rails in RF and mixed-signal designs. The single-circuit PLL with a 2:2 input-to-output ratio means two clock inputs selectable and two outputs — useful for redundant reference or dual-band synthesis without an external mux. ## Sourcing posture — active production, no direct second-source The CD74HCT7046AE is a through-hole PLL from a different family (74HCT, 38 MHz max) and is not a functional substitute for this RF synthesizer; the frequency and package gap is too wide. Availability is confirmed per RFQ — no stock-holding claim here, but the active lifecycle means franchised distribution channels carry it. If you are filling a BOM line, quote against your quantity; the part is not in allocation distress based on its current status. ## Package and thermal — 36-WQFN exposed pad The 36-WFQFN with exposed pad — supplier device package 36-WQFN (6x6 mm) — demands a thermal-land pattern on the PCB. Surface-mount only; no through-hole variant exists.","metaTitle":"LMX2531LQ1700E/NOPB PLL Frequency Synthesizer 1.77 GHz","metaDescription":"Active PLL frequency synthesizer with integrated VCO, 1.77 GHz max output, CMOS, -40°C to 85°C, 36-WQFN. Sourced per RFQ. Texas Instruments.","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":"1.77GHz","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":"$11.48","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.48000","currency":"USD"},{"qty":10,"price":"$10.54700","currency":"USD"},{"qty":25,"price":"$10.10960","currency":"USD"},{"qty":100,"price":"$8.90750","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":"How can I order LMX2531LQ1700E/NOPB or check stock?","answer":"Submit an RFQ for your target quantity. Current pricing and lead time are confirmed at quote time — no stock-holding claim on this page."},{"question":"What is the maximum output frequency of LMX2531LQ1700E/NOPB?","answer":"1.77 GHz. That is the upper limit for the synthesised output; the actual frequency is set by the external reference and loop-filter components."},{"question":"Does LMX2531LQ1700E/NOPB have a known equivalent or drop-in replacement?","answer":"No direct drop-in replacement is listed. The CD74HCT7046AE is a through-hole PLL from a different logic family with a 38 MHz maximum — it is not a functional substitute for this RF synthesizer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMX2531LQ1700E-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/LMX2531LQ1700E-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}}