The LMX2485ESQX/NOPB from Texas Instruments (Luminary Micro division) is a high-performance RF frequency synthesizer integrated circuit designed to generate precise clock signals for demanding wireless and communication applications. This sophisticated device belongs to the Clock/Timing category, specifically within the Clock Generators, PLLs, and Frequency Synthesizers classification, and is part of the PLLatinum series known for advanced phase-locked loop technology.
This frequency synthesizer addresses critical design challenges in modern RF systems where precise frequency generation, low phase noise, and wide frequency coverage are essential. Operating up to an impressive maximum frequency of 3GHz, the device incorporates an integrated PLL (Phase-Locked Loop) with both divider and multiplier capabilities, offering a flexible 2:56 input-to-output ratio that enables designers to generate a wide range of output frequencies from a single reference clock input. The single-circuit architecture accepts a clock input and produces a clock output, with differential input capability while providing single-ended output, making it versatile for various system architectures.
Key specifications include a supply voltage range of 2.5V to 3.6V, making it compatible with modern low-power digital systems, and an operating temperature range of -40°C to 85°C suitable for industrial-grade applications. The device comes in a compact 24-WQFN (4x4mm) package with an exposed pad for enhanced thermal performance, utilizing surface mount technology for automated assembly processes. The component is RoHS3 compliant, meeting current environmental standards, and is supplied in tape and reel packaging with 4300 units available for volume production.
Primary advantages include its high-frequency capability up to 3GHz, integrated PLL functionality eliminating external components, flexible frequency multiplication and division ratios, compact footprint ideal for space-constrained designs, and wide supply voltage tolerance. The device is particularly well-suited for wireless infrastructure equipment, cellular base stations, point-to-point radio systems, test and measurement instruments, satellite communication systems, radar applications, and high-speed data converters requiring precise clock generation.
Equivalent or alternative models that designers might consider include the ADF4351 from Analog Devices offering similar wideband synthesis capabilities, the LMX2582 from Texas Instruments providing extended frequency range, the HMC830 from Analog Devices (formerly Hittite) for ultra-low phase noise applications, and other members of the LMX24xx family such as the LMX2487 or LMX2492 which offer different frequency ranges and feature sets within the same PLLatinum series architecture.
LMX2485ESQX/NOPB Key Technical Attributes
Frequency Synthesizer (RF), PLL
Supply Voltage: 2.5V ~ 3.6V
Maximum Frequency: 3GHz
LMX2485ESQX/NOPB Packing Size
Package: 24-WQFN (4x4), tape & reel packaging ensures ease of handling and placement in automated assembly environments. The 24-lead WQFN (Wettable Flank Quad Flat No-lead) package incorporates an exposed pad for improved heat dissipation and supports robust electrical contact. The pin configuration is optimized for efficient routing on PCBs and guarantees secure surface mount installation, making the part suitable for high-density designs. The package material is lead-free as per ROHS3 standards and features excellent thermal performance for reliable operation in demanding environments.
LMX2485ESQX/NOPB Application
The LMX2485ESQX/NOPB is engineered for use in communications infrastructure, wireless base stations, RF signal generation, and digital clock distribution networks. It is a key component for systems requiring precise frequency synthesis and clock generation, supporting telecom, test equipment, and industrial automation.
LMX2485ESQX/NOPB Features
This high-performance IC features an advanced PLLatinum-series architecture designed by Texas Instruments, which provides robust phase-locked loop (PLL) capability and enables highly flexible frequency synthesis up to 3GHz. The device accommodates both clock input and output, supporting divider and multiplier functions for innovative signal control. With its versatile ratio configuration (2:56) and programmable circuit architecture, the synthesizer offers differential input/output options and supports complex clocking schemes. A single integrated circuit manages multiple clock domains, streamlining system design. The package’s exposed pad enhances thermal management, while surface mount construction allows for compact layouts. RoHS3 compliance ensures eco-friendly operation, and the reliable tape & reel packaging is ideal for high-volume manufacturing processes.
LMX2485ESQX/NOPB Quality and Safety Features
The LMX2485ESQX/NOPB complies fully with the ROHS3 directive, ensuring components are free from hazardous substances and suitable for environmentally conscious applications. The lead-free, wettable flange construction provides strong solder joint integrity and improved AOI (Automated Optical Inspection) capabilities, reducing assembly defects and enhancing product reliability. The robust operational temperature range of -40°C to +85°C guarantees stable performance across a wide array of industrial and commercial scenarios.
LMX2485ESQX/NOPB Compatibility
This product is fully compatible with standard surface mount technology (SMT) processes and integrates seamlessly into modern RF and clocking system architectures. It is suited for use with industry-standard PCBs supporting 24-WQFN (4x4) footprints, and is designed to work within voltage supply ranges commonly used in low-voltage digital and RF platforms.
LMX2485ESQX/NOPB Datasheet PDF
Our website hosts the most authoritative, up-to-date datasheet for LMX2485ESQX/NOPB. We strongly recommend customers download the datasheet directly from this product page to access comprehensive technical documentation, pin configurations, performance graphs, and application guidelines.
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