{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK04031BISQX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK04031BISQX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMK04031BISQX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMK04031BISQX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK04031BISQX/NOPB Clock Conditioner, PLL Yes, 1.57 GHz max, 2:6 I/O, LVCMOS/LVDS/LVPECL input/output, 48-WFQFN exposed pad, -40°C to 85°C.","salesMarkdown":"## 1.57 GHz PLL clock conditioner — jitter budget fit The LMK04031BISQX/NOPB integrates a PLL (phase-locked loop) with a maximum output frequency of 1.57 GHz, positioning it as a clock conditioner for high-speed data converter, FPGA, and SerDes reference clock trees where phase noise cleanup is required. The 2:6 input-to-output ratio means two reference inputs can be selected to feed six conditioned clock outputs — enough to distribute a clean clock to multiple ADC channels or FPGA banks from a single device. ## Multi-protocol I/O and supply rail Input and output ports accept and deliver LVCMOS, LVDS, LVPECL, and 2VPECL levels, so the device bridges between different logic families on the same board without external level translators. The supply voltage range is 3.15 V to 3.45 V, a narrow window that requires a clean 3.3 V rail — a low-noise LDO feeding this pin is standard practice to keep PLL in-band spurs below the datasheet floor. All signal paths are differential on both input and output sides, which improves common-mode noise rejection in the clock distribution path. ## Package and thermal pad The datasheet's recommended land pattern includes a central via array under the pad.","metaTitle":"TI LMK04031BISQX/NOPB Clock Conditioner, 1.57 GHz, Active","metaDescription":"Texas Instruments LMK04031BISQX/NOPB clock conditioner with integrated PLL, 1.57 GHz max frequency, 2:6 I/O ratio, LVCMOS/LVDS/LVPECL.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","PLL":"Yes","Type":"Clock Conditioner","Input":"LVCMOS, LVDS, LVPECL","Output":"LVCMOS, LVDS, 2VPECL, LVPECL","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"48-WFQFN Exposed Pad","Product Status":"Active","Frequency - Max":"1.57GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Divider/Multiplier":"Yes/Yes","Number of Circuits":"1","Base Product Number":"LMK04031","Ratio - Input:Output":"2:6","Operating Temperature":"-40°C~85°C","Supplier Device Package":"48-WQFN (7x7)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.8010","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2739492f39a7ccf814dd60aec1ed6a91.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK04031BISQX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output frequency of the LMK04031BISQX/NOPB?","answer":"The device is rated for a maximum output frequency of 1.57 GHz. This ceiling is set by the internal VCO and PLL divider path, so the actual output frequency in a design will be a sub-multiple of the VCO frequency within that range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK04031BISQX-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK04031BISQX-NOPB 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}}