LMX2485SQX/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2485SQX/NOPB is a dual-circuit delta-sigma phase-locked loop frequency synthesizer manufactured by Texas Instruments. It operates within an output frequency range of 500 MHz to 3 GHz, with input frequencies supported from 75 MHz up to 3 GHz. The device functions on a silicon technology platform and requires a supply voltage between 2.5 V and 3.6 V, drawing a typical operating current of 3.3 mA. It is housed in a WQFN-24 surface-mount package and is rated for industrial temperatures ranging from -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates two independent PLL circuits within a single low-power package
• Utilizes delta-sigma modulation architecture for frequency synthesis
• Designed for wireless and RF integrated circuit applications

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless communication systems requiring dual-channel frequency generation
• RF front-end modules in cellular infrastructure
• Test and measurement equipment needing precise signal synthesis

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'SQX' against the manufacturer's official documentation to confirm the reel packaging configuration and moisture sensitivity level. Ensure that the ordering information matches the exact part number required for your bill of materials, as variations in suffixes may indicate different tape-and-reel specifications or quality grades. Cross-reference the datasheet revision date to ensure compatibility with your design requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a dual-circuit PLL solution is required within the 500 MHz to 3 GHz range. Compare the 3.3 mA power consumption against system budget constraints relative to higher-current alternatives like the LMX2486. Confirm that the WQFN-24 footprint fits the PCB layout and that the 75 MHz minimum input frequency aligns with the reference clock source capabilities available in the design.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LMX2485 series of low-power delta-sigma PLLs. It serves as a specialized variant within Texas Instruments' portfolio of wireless and RF integrated circuits. The device complements other synthesizers in the family by offering dual-channel functionality in a compact form factor, targeting applications where space and power efficiency are critical constraints for RF signal generation.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The LMX2486SQ/NOPB offers similar dual-circuit architecture but covers a higher frequency range of 1 GHz to 4.5 GHz with increased power consumption. Verify if the lower frequency range of the LMX2485 is sufficient for the application before substituting.