{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK1D1204RGTT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK1D1204RGTT","canonicalUrl":"https://icboms.com/texas-instruments/LMK1D1204RGTT","factsUrl":"https://icboms.com/api/mcp/products/LMK1D1204RGTT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK1D1204RGTT, Clock Buffer, 2:4 fanout, HCSL/LVCMOS/LVDS/LVPECL input, LVDS output, 2 GHz max, 16-VQFN (3x3) exposed pad, -40°C to 105°C, ROHS3","salesMarkdown":"The LMK1D1204RGTT is a 2:4 clock buffer from Texas Instruments that accepts HCSL, LVCMOS, LVDS, or LVPECL inputs and delivers LVDS outputs up to 2 GHz. The 2:4 ratio means one active input fans out to four identical LVDS copies, with a second input available for redundancy or muxing — no extra level-shifting components needed on the front end. The 2 GHz max frequency covers PCIe Gen 4/5 reference clocks, 10G/25G Ethernet, and JESD204B SYSREF distribution. ## Supply voltage flexibility and package footprint The device runs from three supply ranges — 1.71V–1.89V, 2.375V–2.625V, and 3.135V–3.465V — so it can share a rail with 1.8V, 2.5V, or 3.3V logic without a dedicated LDO. The input:output ratio is 2:4, and both input and output paths are fully differential. The single-circuit design means one buffer channel per package — for higher fanout, cascade multiple devices or use a 1:4 fanout buffer with a larger ratio. ROHS3 compliance covers the full bill of materials — no exemption-based paperwork needed for EU markets. ## Comparison with the LVPECL sibling CDCLVP1204RGTR The closest functional peer is the CDCLVP1204RGTR, which also offers a 2:4 fanout at 2 GHz but outputs LVPECL instead of LVDS. The LMK1D1204RGTT uses LVDS outputs, which typically consume less power and have a smaller voltage swing than LVPECL, making it a better fit for low-voltage or power-sensitive clock trees.","metaTitle":"LMK1D1204RGTT Clock Buffer 2:4 2 GHz LVDS 16VQFN Texas","metaDescription":"Texas Instruments LMK1D1204RGTT Clock Buffer, 2:4 fanout, 2 GHz max, LVDS output, -40°C to 105°C, 16-VQFN. Active production, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","Type":"Clock Buffer","Input":"HCSL, LVCMOS, LVDS, LVPECL","Output":"LVDS","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"16-VFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"2 GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V","Number of Circuits":"1","Ratio - Input:Output":"2:4","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"16-VQFN (3x3)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.8800","priceTiers":[{"qty":1,"price":"$9.88000","currency":"USD"},{"qty":10,"price":"$8.92900","currency":"USD"},{"qty":25,"price":"$8.51400","currency":"USD"},{"qty":100,"price":"$7.39260","currency":"USD"},{"qty":250,"price":"$7.06032","currency":"USD"},{"qty":500,"price":"$6.43734","currency":"USD"},{"qty":1250,"price":"$5.60671","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK1D1204RGTT/alternatives.json"},"ai":{"faq":[{"question":"Does LMK1D1204RGTT have an equivalent or alternative?","answer":"If your system requires LVDS outputs and the wider -40°C to 105°C range, the LMK1D1204RGTT is the correct choice."},{"question":"Is LMK1D1204RGTT RoHS compliant?","answer":"Yes, it is ROHS3 Compliant, meaning no exempted substances above the threshold limits."},{"question":"What input signal types does LMK1D1204RGTT accept?","answer":"The buffer accepts HCSL, LVCMOS, LVDS, and LVPECL inputs, so it can interface directly with most common high-speed clock sources without external level translators."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK1D1204RGTT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK1D1204RGTT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}