{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD9577BCPZ-R7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD9577BCPZ-R7","canonicalUrl":"https://icboms.com/analog-devices/AD9577BCPZ-R7","factsUrl":"https://icboms.com/api/mcp/products/AD9577BCPZ-R7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices AD9577BCPZ-R7, PLL-based clock generator, 637.5 MHz max, 2:5 input-to-output ratio, LVCMOS/LVDS/LVPECL outputs, 40-LFCSP-WQ (6x6) package, -40°C to 85°C operation.","salesMarkdown":"## What this clock generator does for your line card The AD9577BCPZ-R7 is a PLL-based clock generator that takes a clock or crystal input and produces up to five outputs in LVCMOS, LVDS, or LVPECL formats. It targets Ethernet, PCI Express, and SONET/SDH line cards — one IC covers the reference clocks for the PHY, the FPGA transceiver, and the backplane SerDes. Maximum output frequency is 637.5 MHz, which covers 1000BASE-X, PCIe Gen 1/2/3 reference clocks (100 MHz), and OC-48/STM-16 SONET rates. The 2:5 input-to-output ratio lets you fan out two references to five clock domains without an external fanout buffer. ## Industrial temperature range and supply rails It fits outdoor telecom cabinets, factory-floor Ethernet switches, and base-station timing cards where the ambient can hit 85°C. Supply voltage range is 3.0 V to 3.6 V, which matches the 3.3 V rail common on line cards. The single-circuit PLL means one independent PLL core — if your design needs two asynchronous clock domains (e.g., a 125 MHz Ethernet and a 100 MHz PCIe), the AD9577 handles both from the same PLL, but they share the VCO. ## Package and mounting — what the 40-LFCSP means for your board Housed in a 40-lead LFCSP-WQ (6x6 mm) with an exposed pad. Surface-mount only; no through-hole option. Cut Tape (CT) is also available for prototypes. No tube option — if your line feeder expects tubes, you will need to transfer from reel to tube manually.","metaTitle":"AD9577BCPZ-R7 Clock Generator IC – Analog Devices, 637.5 MHz","metaDescription":"AD9577BCPZ-R7 from Analog Devices: PLL-based clock generator for Ethernet, PCIe, SONET/SDH. 637.5 MHz max, 2:5 I/O ratio, LVCMOS/LVDS/LVPECL outputs.","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":"Tape & Reel (TR); Cut Tape (CT)","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":100,"price":"$9.87780","currency":"USD"},{"qty":250,"price":"$9.39300","currency":"USD"},{"qty":750,"price":"$8.78700","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/AD9577.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order AD9577BCPZ-R7 or check stock?","answer":"The AD9577BCPZ-R7 is an active Analog Devices part available through our distribution channel. We quote to order against your BOM quantity — submit an RFQ for current pricing and lead time. Tape-and-reel packaging is standard for volume; Cut Tape is available for smaller builds."},{"question":"Is AD9577BCPZ-R7 compatible with PCIe Gen 3?","answer":"Yes — the 637.5 MHz maximum output covers the 100 MHz reference clock required by PCIe Gen 1, 2, and 3. The LVDS or LVPECL output formats match the differential input requirements of most PCIe clock buffers and root complexes."},{"question":"What is the replacement for AD9577BCPZ-R7 if it goes EOL?","answer":"No official replacement or successor has been announced by Analog Devices. The electrically identical AD9577BCPZ in tray packaging is the closest functional alternative, but it is not a second-source — both are ADI parts. If EOL risk is a concern, consider the AD9524BCPZ-REEL7 which offers 1 GHz max frequency and 2:6 I/O ratio, though it requires a different supply voltage (1.71 V) and has a different pinout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD9577BCPZ-R7","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-R7 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}}