UXN40M7K

Overview

The UXN40M7K is a programmable integer divider and RF prescaler designed for high-frequency applications. It operates within a frequency range of 500 MHz to 40 GHz, supporting divide ratios from 1 to 127. The device delivers an output power of +2 dBm and exhibits a phase noise performance of -153 dBc/Hz. It functions on a supply voltage between 3 V and 3.6 V. The component is housed in a 24-VFCQFN exposed pad package with dimensions of 4x4 mm. It supports operation temperatures down to -40°C.

Feature Summary

• Supports programmable integer division ratios ranging from 1 to 127
• Operates as a high-frequency prescaler covering up to 40 GHz
• Integrated into a compact 24-pin VFCQFN package with exposed pad

Applications

• Frequency synthesis systems requiring wideband division
• RF signal processing circuits operating above 500 MHz
• Phase-locked loop (PLL) feedback dividers
• High-speed clock distribution networks

Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to ensure correct package variant and temperature rating. Confirm that the required divide ratio functionality aligns with the 1-to-127 programmable range. Check for compatibility with the 3V to 3.6V supply voltage constraints. Ensure the PCB footprint matches the 24-VFCQFN 4x4mm exposed pad specification. Validate thermal requirements for the intended operating environment.

Selection Notes

Select this component when a single device must handle both prescaling and programmable division up to 40 GHz. Consider the -153 dBc/Hz phase noise metric for sensitive RF applications. Evaluate the +2 dBm output power against subsequent stage input requirements. Verify that the 3.3V nominal supply fits within the specified 3V to 3.6V operational window. Assess the thermal dissipation capabilities of the exposed pad package for the target application.

Part Context

The UXN40M7K belongs to Microchip's family of RF IC prescalers and dividers. It serves as a critical component in modern communication systems requiring precise frequency control at microwave frequencies. The device integrates advanced digital logic with RF front-end capabilities to provide a compact solution for frequency generation and manipulation tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.