{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC6948IUFD-4#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC6948IUFD-4TRPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC6948IUFD-4TRPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC6948IUFD-4%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC6948IUFD-4#TRPBF, Clock/Frequency Synthesizer (RF/IF), Fractional N, PLL Yes, 1 circuit, 1:1 I/O ratio, differential I/O, 6.39 GHz max, -40°C to 105°C, 28-WFQFN exposed pad, Tape & Reel","salesMarkdown":"## Fractional-N PLL for RF/IF synthesis up to 6.39 GHz The LTC6948IUFD-4#TRPBF is a fractional-N PLL clock/frequency synthesizer from Analog Devices, designed for RF/IF frequency generation. It accepts a clock input and delivers a clock output, with a maximum output frequency of 6.39 GHz. The fractional-N architecture allows fine frequency steps without requiring a high reference frequency, which matters when you are locking to a clean 10 MHz or 100 MHz reference in a base station or test equipment PLL chain. ## Industrial temperature range and supply flexibility The supply voltage range of 3.15V to 5.25V gives you a single-rail option at 3.3V or 5V, simplifying the power tree — no separate 1.8V rail needed for the PLL core. ## Active production — sourcing through distribution Sourced per RFQ against your BOM quantity; no stock-holding claim. The -4 variant is the highest-frequency member of the LTC6948 family, hitting 6.39 GHz versus 5.79 GHz for the -3 and 4.91 GHz for the -2.","metaTitle":"LTC6948IUFD-4#TRPBF – Analog Devices Fractional-N PLL","metaDescription":"Active-production fractional-N PLL synthesizer from Analog Devices. 6.39 GHz max output, -40°C to 105°C, 28-QFN. Tape & Reel. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Clock/Frequency Synthesizer (RF/IF), Fractional N","Input":"Clock","Output":"Clock","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"28-WFQFN Exposed Pad","Frequency - Max":"6.39GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 5.25V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"28-QFN (4x5)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$19.09000","currency":"USD"},{"qty":10,"price":"$17.54400","currency":"USD"},{"qty":25,"price":"$16.81640","currency":"USD"},{"qty":100,"price":"$14.81670","currency":"USD"},{"qty":250,"price":"$14.08952","currency":"USD"},{"qty":500,"price":"$13.18050","currency":"USD"},{"qty":2500,"price":"$11.63520","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/6948fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to LTC6948IUFD-4#TRPBF?","answer":"The LTC6948IUFD-4#PBF is the tube-packaged equivalent of the same die. The -4 variant is the highest-frequency member; the -3 and -2 are lower-frequency siblings at 5.79 GHz and 4.91 GHz respectively, all in the same 28-QFN package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC6948IUFD-4TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC6948IUFD-4TRPBF 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}}