{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC6957HMS-1#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC6957HMS-1PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC6957HMS-1PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC6957HMS-1%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC6957HMS-1#PBF, Fanout Buffer (Distribution), 1:2 LVPECL output, 300 MHz maximum frequency, 3.15V–3.45V supply, -40°C to 125°C, 12-TSSOP surface-mount package.","salesMarkdown":"## What is this part and where does it fit? The LTC6957HMS-1#PBF is a 1:2 fanout buffer from Analog Devices that takes one differential or single-ended clock input and delivers two LVPECL outputs. It handles up to 300 MHz and accepts CML, CMOS, LVDS, or LVPECL inputs, so it bridges between different logic families on a clock tree. The 3.15V–3.45V supply rail is tight—plan for a clean 3.3V rail with ±5% regulation. The 300 MHz maximum frequency sets the speed ceiling for clock distribution. If your system runs a 200 MHz reference, this buffer has margin; at 300 MHz you are at the limit, so check the output rise/fall times against your receiver setup/hold. Input accepts CML, CMOS, LVDS, and LVPECL—this is the main flexibility win. A single BOM line can handle a CMOS oscillator on one build and an LVDS PLL output on another, as long as the output is LVPECL. The 1:2 fanout ratio means one input drives two loads; for more than two outputs, cascade another buffer or use a 1:4 part. The 12-TSSOP package (0.118\" wide, 3.00 mm) with 0.65 mm pitch fits on a 2-layer board but benefits from a ground plane under the part for signal integrity at high frequencies. The MSOP-12 footprint is shared with other LTC6957 variants, so a layout can be reused across output types. ## Lifecycle and supply posture ROHS3 compliant (Pb-free). Sourced to order against your BOM quantity; no stock-holding claim, confirmed per RFQ.","metaTitle":"LTC6957HMS-1#PBF Clock Fanout Buffer – 300 MHz","metaDescription":"LTC6957HMS-1#PBF from Analog Devices: 1:2 LVPECL fanout buffer, 300 MHz max, accepts CML/CMOS/LVDS/LVPECL. Active, -40°C to 125°C. 12-TSSOP. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"Fanout Buffer (Distribution)","Input":"CML, CMOS, LVDS, LVPECL","Output":"LVPECL","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"12-TSSOP (0.118\\\", 3.00mm Width)","Frequency - Max":"300 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Number of Circuits":"1","Ratio - Input:Output":"1:2","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"12-MSOP","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.97","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.97000","currency":"USD"},{"qty":10,"price":"$10.07800","currency":"USD"},{"qty":25,"price":"$9.66000","currency":"USD"},{"qty":100,"price":"$8.51140","currency":"USD"},{"qty":250,"price":"$8.09364","currency":"USD"},{"qty":500,"price":"$7.57146","currency":"USD"},{"qty":1000,"price":"$6.94486","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a73d42f0fe94cfce038c093f3f032b04.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How does LTC6957HMS-1#PBF compare to the LTC6957IDD-1#PBF?","answer":"Both are 1:2 LVPECL fanout buffers with the same input types and 300 MHz max frequency. The 'HMS' also uses the 12-MSOP package; the 'IDD' uses a 12-DFN. For high-temperature environments, the HMS is the right choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC6957HMS-1PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC6957HMS-1PBF 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}}