PLL synthesizer with integrated VCO — what the 2.24 GHz ceiling means
The Texas Instruments LMX2541SQE2060E/NOPB is a PLL frequency synthesizer with an integrated VCO, covering a maximum output of 2.24 GHz. It accepts a clock input and delivers a clock output, with a 2:2 input-to-output ratio. The single-circuit device operates from a 3.15 V to 3.45 V supply and is rated over the -40°C to 85°C industrial temperature range. It comes in a 36-WQFN (6x6) exposed-pad package for surface-mount assembly. This part is typically used in RF signal generation for wireless infrastructure, test equipment, and communications systems where a low-phase-noise frequency source is required.