{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"9DBV0441AKLF","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"9DBV0441AKLF","canonicalUrl":"https://icboms.com/renesas/9DBV0441AKLF","factsUrl":"https://icboms.com/api/mcp/products/9DBV0441AKLF","rawCanonicalId":null},"summary":{"shortDescription":"Renesas 9DBV0441AKLF, PLL clock buffer, 1:4 HCSL fanout, 137.5 MHz max, 1.7 V to 1.9 V supply, 32-VFQFPN (5x5) exposed pad, 0°C to 70°C.","salesMarkdown":"## PLL clock buffer for PCIe reference-clock distribution The Renesas 9DBV0441AKLF is a 1:4 PLL-based clock buffer designed to distribute HCSL reference clocks for Ethernet and PCI Express (PCIe) interfaces. It accepts one HCSL input and delivers four HCSL outputs with integrated PLL cleaning, so the output jitter is lower than the input — useful when a noisy clock source needs cleaning before reaching the PCIe PHY. The part runs from a 1.7 V to 1.9 V supply rail, matching the core voltage of modern server and switch ASICs. ## 137.5 MHz ceiling — Gen1/Gen2 PCIe, not Gen3 The maximum output frequency is 137.5 MHz, which covers PCIe Gen1 (100 MHz) and Gen2 (100 MHz) reference clocks, plus standard Ethernet frequencies. It does not reach the 400 MHz range needed for PCIe Gen3 or higher-speed serial links — for those, look at the 9ZXL0851EKKLF (400 MHz, 1:8 fanout, industrial temp) or the 9DB803DFLFT (400 MHz, 1:8, 3.135 V supply). The 9DBV0441AKLF is the right fit for 100 MHz PCIe clock trees in server motherboards, switches, and storage controllers that stay within the commercial temperature band. ## Active, RoHS3, surface-mount QFN The part is ROHS3 Compliant, so it meets the latest EU restrictions on hazardous substances. Packaged in a 32-VFQFN with exposed pad (5x5 mm body), it requires a thermal via array under the pad for adequate heat sinking when the buffer is running near its maximum frequency and supply voltage. ## Supply and temperature — server-room only The operating temperature range is 0°C to 70°C, which is commercial grade — suitable for indoor, climate-controlled environments like data-center servers, network switches, and telecom central-office equipment. Not rated for industrial or automotive applications. The supply voltage tolerance (1.7 V to 1.9 V) means the part can share a 1.8 V rail with DDR memory or the core supply of an FPGA or switch ASIC, simplifying the power tree.","metaTitle":"Renesas 9DBV0441AKLF Clock Buffer, PLL, 1:4 HCSL, 137.5MHz","metaDescription":"Renesas 9DBV0441AKLF PLL clock buffer for PCIe/Ethernet. 1:4 HCSL fanout, 137.5MHz max, 1.7-1.9V supply, 32-VFQFPN. Active, RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Input":"HCSL","Output":"HCSL","Package":"Tray","Main Purpose":"Ethernet, PCI Express (PCIe)","Mounting Type":"Surface Mount","Package / Case":"32-VFQFN Exposed Pad","Frequency - Max":"137.5MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"1.7V ~ 1.9V","Number of Circuits":"1","Ratio - Input:Output":"1:4","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"32-VFQFPN (5x5)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.83000","currency":"USD"},{"qty":10,"price":"$3.43700","currency":"USD"},{"qty":25,"price":"$3.24960","currency":"USD"},{"qty":80,"price":"$2.81638","currency":"USD"},{"qty":230,"price":"$2.67196","currency":"USD"},{"qty":490,"price":"$2.39753","currency":"USD"},{"qty":980,"price":"$2.02202","currency":"USD"},{"qty":2450,"price":"$1.92092","currency":"USD"},{"qty":4900,"price":"$1.84870","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/27fd345930a86dcb772403d8de768536.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 9DBV0441AKLF RoHS compliant?","answer":"Yes, it is ROHS3 Compliant, meeting the latest EU RoHS directive requirements."},{"question":"Is 9DBV0441AKLF compatible with PCIe Gen3?","answer":"No. The maximum output frequency is 137.5 MHz, which covers PCIe Gen1 and Gen2 reference clocks (100 MHz). PCIe Gen3 requires a 400 MHz-capable buffer such as the 9ZXL0851EKKLF."},{"question":"What is the replacement for 9DBV0441AKLF?","answer":"There is no direct replacement listed. For a higher-frequency alternative with 1:8 fanout and 400 MHz capability, consider the 9ZXL0851EKKLF (industrial temp) or the 9DB803DFLFT (3.135 V supply). Both are PLL-based HCSL buffers but differ in supply voltage, fanout ratio, and temperature range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/9DBV0441AKLF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/9DBV0441AKLF 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}}