{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CY23020LFI-3","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"CY23020LFI-3","canonicalUrl":"https://icboms.com/infineon/CY23020LFI-3","factsUrl":"https://icboms.com/api/mcp/products/CY23020LFI-3","rawCanonicalId":null},"summary":{"shortDescription":"Cypress CY23020LFI-3 Zero Delay Buffer, PLL based clock driver, Input LVPECL, Output LVPECL, 400 MHz max, 2:10 fanout, 3.135V–3.465V supply, -40°C to 85°C, 48-VFQFN Exposed Pad, Surface Mount.","salesMarkdown":"## PLL-based clock driver for high-speed differential distribution The Cypress CY23020LFI-3 is a PLL-based Zero Delay Buffer designed to regenerate and distribute a low-jitter LVPECL clock with deterministic phase alignment. It accepts one LVPECL input and fans it out to ten LVPECL outputs (2:10 ratio), all differential, all running up to 400 MHz. The part operates from a 3.135V to 3.465V supply and is specified over the industrial temperature range of -40°C to 85°C. It comes in a 48-VFQFN Exposed Pad package (48-QFN, 7x7 mm) for surface-mount assembly. ## 400 MHz ceiling and 2:10 fanout — what they mean for the clock tree The 400 MHz maximum frequency covers most high-speed serial interfaces — Gigabit Ethernet, PCIe Gen 1/2 reference clocks, SONET/SDH, and FPGA transceiver reference clocks. The 2:10 ratio means one input drives five output banks of two differential pairs each; a single CY23020LFI-3 can feed ten LVPECL loads from one oscillator or synthesizer, reducing BOM count and board area versus discrete fanout trees. Because it is a PLL-based Zero Delay Buffer, the output edges are phase-aligned to the input — there is no cumulative skew across the fanout. This matters for parallel clock domains where setup/hold margins are tight. ## Supply and temperature — design constraints The supply range is 3.135V to 3.465V — a tight 3.3V ±5% window. The PLL's loop filter and VCO are sensitive to supply noise; a clean, well-decoupled 3.3V rail is required. The industrial temperature range (-40°C to 85°C) qualifies this part for outdoor telecom base stations, industrial motor drives, and automotive cabin electronics (though it is not AEC-Q100 qualified). ## RoHS status — compliance check The CY23020LFI-3 is marked RoHS non-compliant. This is a hard constraint for any BOM that must meet RoHS or similar environmental directives. If your design requires RoHS compliance, you will need to look at a different part number in the family or a lead-free alternative. ## Lifecycle and sourcing It is sourced through independent distribution and quoted to order against an RFQ.","metaTitle":"CY23020LFI-3 Zero Delay Buffer, LVPECL, 400 MHz, 48-QFN","metaDescription":"CY23020LFI-3 Zero Delay Buffer from Cypress. LVPECL input/output, 400 MHz max, 2:10 fanout, 3.135V–3.465V supply, -40°C to 85°C. Active, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"Zero Delay Buffer","Input":"LVPECL","Output":"LVPECL","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"48-VFQFN Exposed Pad","Frequency - Max":"400 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Number of Circuits":"1","Ratio - Input:Output":"2:10","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-QFN (7x7)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.42","stockQuantity":0,"priceTiers":[{"qty":41,"price":"$7.42000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5c8f9cc2e0e44fa455da9d578df61a56.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CY23020LFI-3 RoHS compliant?","answer":"No, the CY23020LFI-3 is listed as RoHS non-compliant. It cannot be used in designs that require RoHS compliance."},{"question":"What is the operating frequency range of CY23020LFI-3?","answer":"The CY23020LFI-3 supports a maximum frequency of 400 MHz on both input and output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/CY23020LFI-3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/CY23020LFI-3 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}}