Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using 50-ohm transmission lines for RF signals.
The loop filter design depends on the specific application and frequency range. TI provides a loop filter design tool and guidelines in the datasheet, but it's recommended to consult with TI's application notes and technical support for specific guidance.
The maximum input power that the LMX2581 can handle is not explicitly stated in the datasheet, but it's recommended to follow the absolute maximum ratings and operating conditions to avoid damage to the device. Typically, the input power should be limited to -10 dBm to -20 dBm.
TI provides a calibration and configuration guide in the datasheet, but it's recommended to consult with TI's application notes and technical support for specific guidance on calibration and configuration for your specific application.
The LMX2581 has a maximum junction temperature of 150°C. To ensure proper heat dissipation, it's recommended to follow TI's thermal design guidelines, use a heat sink or thermal pad, and ensure good airflow around the device.