{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMX2331USLBX","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMX2331USLBX","canonicalUrl":"https://icboms.com/texas-instruments/LMX2331USLBX","factsUrl":"https://icboms.com/api/mcp/products/LMX2331USLBX","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PLLatinum™ PLL Frequency Synthesizer, LMX2331USLBX, dual PLL, 2 GHz / 600 MHz max, 2.7-5.5V, CMOS/TTL input, CMOS output, 24-CSP (4.5x3.5 mm), Bulk.","salesMarkdown":"## Dual PLL frequency synthesizer — RF and IF in one CSP The LMX2331USLBX is a dual PLL frequency synthesizer from the PLLatinum series, combining a main synthesizer rated to 2 GHz and an auxiliary synthesizer rated to 600 MHz in a single 24-pin CSP package. The 3:1 input-to-output ratio lets you select among three reference inputs for the PLL path, and the bypass mode disables the internal phase detector for direct VCO control. ## Supply, interface, and temperature range CMOS and TTL input levels are accepted; the output drives CMOS loads. The differential input accepts a differential reference while the output stays single-ended CMOS — useful when the reference source is a differential TCXO or OCXO.","metaTitle":"Texas Instruments LMX2331USLBX PLL Frequency Synthesizer","metaDescription":"Texas Instruments LMX2331USLBX PLLatinum dual PLL frequency synthesizer, 2 GHz main / 600 MHz aux, 24-CSP, active production. Quoted to order.","metaKeywords":null},"attributes":{"series":"PLLatinum™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PLL":"Yes with Bypass","Type":"PLL Frequency Synthesizer","Input":"CMOS, TTL","Output":"CMOS","Series":"PLLatinum™","Package":"Bulk","Mounting Type":"Surface Mount","Package / Case":"24-TFQFN, CSP","Frequency - Max":"2GHz, 600MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"3:1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"24-CSP (4.5x3.5)","Differential - Input:Output":"Yes/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.02","stockQuantity":0,"priceTiers":[{"qty":295,"price":"$1.02000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What does the PLL with bypass feature mean on the LMX2331USLBX?","answer":"The PLL with bypass mode lets the part operate as a standard phase-locked loop or bypass the internal phase detector, feeding the VCO control directly. This is useful for open-loop modulation or test modes where the PLL feedback is disabled."},{"question":"Is the LMX2331USLBX RoHS compliant?","answer":"This is typical for legacy parts still specified for hi-rel or military applications where leaded solder is required or exempted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMX2331USLBX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMX2331USLBX 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}}