{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD9577BCPZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD9577BCPZ","canonicalUrl":"https://icboms.com/analog-devices/AD9577BCPZ","factsUrl":"https://icboms.com/api/mcp/products/AD9577BCPZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices AD9577BCPZ, PLL-based clock generator, 637.5 MHz max output, 2:5 input:output ratio, LVCMOS/LVDS/LVPECL outputs, 40-LFCSP-WQ (6x6) package, -40°C to 85°C operation.","salesMarkdown":"## PLL clock generator for multi-rate line cards The AD9577BCPZ is a dual-PLL clock generator from Analog Devices, purpose-built for Ethernet, PCI Express, and SONET/SDH line cards. It accepts a clock or crystal input and delivers up to five outputs in LVCMOS, LVDS, or LVPECL logic families — covering the three most common backplane clocking standards from a single IC. Maximum output frequency is 637.5 MHz, which covers PCIe Gen3/4 reference clocks and 10GBASE-R line rates. The 2:5 input-to-output ratio means you can distribute one or two reference sources to five downstream PLLs or SerDes without an external fanout buffer. ## Output flexibility and supply rail Each output bank can be independently configured for LVCMOS, LVDS, or LVPECL — a single BOM position handles mixed-logic clock trees. The supply range is 3.0 V to 3.6 V, which aligns with standard 3.3 V backplane rails; no additional LDO is needed for the clock IC. Differential inputs are not supported (the input side is single-ended clock or crystal), but all five outputs can be differential (LVDS or LVPECL). This matters when the reference source is a local oscillator and the fanout targets differential SerDes reference inputs. ## Active production and package details Housed in a 40-lead LFCSP-WQ (6x6 mm) with an exposed pad.","metaTitle":"AD9577BCPZ Clock Generator PLL 637.5MHz LVCMOS LVDS LVPECL","metaDescription":"Analog Devices AD9577BCPZ PLL clock generator for Ethernet, PCIe, SONET/SDH. 637.5 MHz max, 2:5 input:output, LVCMOS/LVDS/LVPECL. Active production, 40-LFCSP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Input":"Clock, Crystal","Output":"LVCMOS, LVDS, LVPECL","Package":"Tray","Main Purpose":"Ethernet, PCI Express (PCIe), SONET/SDH","Mounting Type":"Surface Mount","Package / Case":"40-WFQFN Exposed Pad, CSP","Frequency - Max":"637.5MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Number of Circuits":"1","Ratio - Input:Output":"2:5","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"40-LFCSP-WQ (6x6)","Differential - Input:Output":"No/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$12.73000","currency":"USD"},{"qty":10,"price":"$11.69600","currency":"USD"},{"qty":25,"price":"$11.21120","currency":"USD"},{"qty":80,"price":"$9.87775","currency":"USD"},{"qty":230,"price":"$9.39300","currency":"USD"},{"qty":440,"price":"$8.78700","currency":"USD"},{"qty":945,"price":"$8.05980","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/AD9577.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is AD9577BCPZ compatible with PCIe or Ethernet?","answer":"Yes — the main purpose is listed as Ethernet and PCI Express (PCIe), along with SONET/SDH. The 637.5 MHz maximum output covers PCIe Gen3/4 reference clocks and 10GBASE-R line rates."},{"question":"Does AD9577BCPZ support LVPECL outputs?","answer":"Yes. The output types include LVCMOS, LVDS, and LVPECL. Each output can be configured independently for the required logic family."},{"question":"When sourcing AD9577BCPZ, what is the closest functional alternative?","answer":"The tape-and-reel variant AD9577BCPZ-R7 is electrically identical. For a different output count or frequency ceiling, the AD9550BCPZ (1:2 ratio, 810 MHz max) or AD9524BCPZ-REEL7 (2:6 ratio, 1 GHz max, fully differential I/O) are in the same family but have different pinouts — verify the board layout before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD9577BCPZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/AD9577BCPZ 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}}