What the LMX2354SLDX does in a frequency plan
The LMX2354SLDX is a PLL frequency synthesizer from Texas Instruments, designed to generate stable local-oscillator signals in RF and wireless systems. Its function is to lock a voltage-controlled oscillator to a reference frequency, producing a clean, programmable output for upconversion or downconversion stages. As a Clock & Timing IC, it sits in the signal chain between the reference crystal and the VCO, typically found in base stations, test equipment, or satellite-communication transceivers where phase noise and lock time matter.
Active production and sourcing posture
A critical compliance note: the LMX2354SLDX is RoHS non-compliant. If your BOM requires RoHS exemption for leaded solder or high-reliability applications, this part fits. For RoHS-mandated assemblies, confirm the exemption or plan for a waiver.
Package format and board-level fit
For automated pick-and-place, verify that your feeder system can handle tube-fed components or plan for manual placement.