{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"W229BHT","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"W229BHT","canonicalUrl":"https://icboms.com/infineon/W229BHT","factsUrl":"https://icboms.com/api/mcp/products/W229BHT","rawCanonicalId":null},"summary":{"shortDescription":"W229BHT, Spread Spectrum Clock Generator, PLL Yes, Input LVTTL/Crystal, Output Clock/Crystal, 48MHz/66MHz max, 1:31 ratio, 2 circuits, 2.375V-2.625V / 3.135V-3.465V supply, 0°C to 70°C, 56-BSSOP (7.50mm width), Surface Mount.","salesMarkdown":"## What the W229BHT is and where it fits The W229BHT is a spread spectrum clock generator with an integrated PLL, designed to reduce electromagnetic interference (EMI) in digital systems by modulating the output clock frequency. It accepts either an LVTTL reference or a crystal input and delivers up to 31 clock outputs from a single input, making it suitable for distributing a clean, low-jitter clock across a multi-load PCB. The part operates from dual supply rails — 2.375 V to 2.625 V or 3.135 V to 3.465 V. The commercial temperature range (0°C to 70°C) targets indoor equipment: servers, networking gear, test instruments, and office peripherals where ambient stays controlled. Two internal PLL circuits (Number of Circuits: 2) let the device generate independent clock domains from a single reference, useful when a board needs one spread-spectrum clock for the main bus and a fixed-frequency clock for a serial interface. ## 1:31 fanout — what it means for the board The 1:31 input-to-output ratio is the standout spec. A single crystal or LVTTL input drives up to 31 clock loads — DRAMs, FPGAs, Ethernet PHYs, or ASICs — without external fanout buffers. That saves board area and reduces part count on dense multi-layer designs. The CY2305SXI-1HT, a common zero-delay buffer, offers only a 1:5 fanout; the W229BHT replaces three or four of those parts in a high-load clock tree. Outputs are single-ended (Differential - Input:Output: No/No), so the clock signals are LVTTL/LVCMOS-level. For long traces or noisy environments, series termination at the source is recommended to maintain edge rates.","metaTitle":"W229BHT Spread Spectrum Clock Generator, 1:31 Fanout","metaDescription":"W229BHT is a spread spectrum clock generator with integrated PLL, 1:31 LVTTL/crystal input-to-clock output ratio, dual 2.5V/3.3V supply, 56-SSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Type":"Spread Spectrum Clock Generator","Input":"LVTTL, Crystal","Output":"Clock, Crystal","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"56-BSSOP (0.295\\\", 7.50mm Width)","Frequency - Max":"48MHz, 66MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2.375V ~ 2.625V, 3.135V ~ 3.465V","Divider/Multiplier":"Yes/No","Number of Circuits":"2","Ratio - Input:Output":"1:31","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"56-SSOP","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.33","stockQuantity":0,"priceTiers":[{"qty":129,"price":"$2.33000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2f2b87c5ff183c3af7faa06fa032e5fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is W229BHT compatible with a 3.3V supply?","answer":"Yes. The supply voltage range includes 3.135 V to 3.465 V, which covers a nominal 3.3 V rail. The part also accepts a 2.5 V supply (2.375 V to 2.625 V) for mixed-voltage boards."},{"question":"What is the difference between W229BHT and similar clock generators?","answer":"The main difference is the 1:31 fanout ratio versus typical 1:5 or 1:10 parts. The W229BHT also integrates two PLL circuits, allowing independent clock domains from one reference. Most competitors offer a single PLL and fewer outputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/W229BHT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/W229BHT 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}}