{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CDCEL949PWRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CDCEL949PWRG4","canonicalUrl":"https://icboms.com/texas-instruments/CDCEL949PWRG4","factsUrl":"https://icboms.com/api/mcp/products/CDCEL949PWRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments CDCEL949PWRG4, Clock/Frequency Synthesizer, PLL Yes with Bypass, 1:9 LVCMOS fan-out, 230 MHz max, 1.7V-1.9V supply, -40°C to 85°C, 24-TSSOP.","salesMarkdown":"## 230 MHz PLL synthesizer with 1:9 LVCMOS fan-out The Texas Instruments CDCEL949PWRG4 is a clock/frequency synthesizer built around a PLL that can be bypassed for a clean reference path. It accepts an LVCMOS or crystal input and delivers up to nine LVCMOS outputs, each capable of running up to 230 MHz. The 1:9 ratio means a single reference clock fans out to nine loads — useful for distributing a master clock across multiple ASICs, FPGAs, or PHYs on the same board without adding separate buffers. The supply range is 1.7V to 1.9V, which centres on a 1.8V rail. If the board already carries a 1.8V LDO or switcher, this part drops in without a new regulator. If the closest rail is 3.3V or 2.5V, a dedicated 1.8V supply is needed — factor in the extra component cost and board area. The narrow tolerance (200 mV window) also means the supply must be well-regulated; a noisy rail can couple into the PLL and degrade jitter performance. ## Industrial temperature grade and 24-TSSOP footprint The 24-TSSOP package (4.40 mm wide, 0.65 mm pitch) is a common footprint that routes easily on a two-layer board for the clock fan-out traces. The PLL bypass feature is useful during board bring-up or when the application needs a jitter-free reference — the PLL can be disabled and the input passed straight to the outputs. That said, the narrow supply rail and 24-TSSOP package limit drop-in alternatives — if the board layout is locked, a future EOL would require a board spin.","metaTitle":"Texas Instruments CDCEL949PWRG4 Clock Synthesizer, 230 MHz","metaDescription":"TI CDCEL949PWRG4 clock/frequency synthesizer with PLL bypass, 1:9 fan-out, 230 MHz max, LVCMOS I/O, 1.7V-1.9V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","PLL":"Yes with Bypass","Type":"Clock/Frequency Synthesizer","Input":"LVCMOS, Crystal","Output":"LVCMOS","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Package / Case":"24-TSSOP (0.173\\\", 4.40mm Width)","Frequency - Max":"230MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"1.7V ~ 1.9V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Base Product Number":"CDCEL949","Ratio - Input:Output":"1:9","Operating Temperature":"-40°C~85°C","Supplier Device Package":"24-TSSOP","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$178.8000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c98cafeeb542dbe521bd64606b920517.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum output frequency of CDCEL949PWRG4?","answer":"The maximum output frequency is 230 MHz. Each of the nine LVCMOS outputs can run at that speed, limited by the PLL and output buffer design."},{"question":"Can CDCEL949PWRG4 be used with a crystal input?","answer":"Yes, the input accepts either an LVCMOS clock or a crystal. The on-chip oscillator and PLL can generate the output frequencies from a fundamental-mode crystal without an external oscillator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CDCEL949PWRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CDCEL949PWRG4 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}}