MAX2871ETJ+

Overview

The MAX2871ETJ+ is a fractional and integer-N synthesizer with an integrated voltage-controlled oscillator (VCO) designed for general-purpose RF applications. It operates within a frequency range of 23.5 MHz to 6000 MHz, supporting local oscillator generation for 5G systems or data converter clocking. The device utilizes silicon technology and functions on a supply voltage between 3 V and 3.6 V, typically at 3.3 V. It draws approximately 144 mA during operation and is housed in a 32-lead TQFN package measuring 5x5 mm. The component supports surface-mount installation and operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a fractional and integer-N phase-locked loop synthesizer with a built-in VCO
• Covers a wide output frequency spectrum from 23.5 MHz to 6 GHz
• Designed for ultra-low noise performance suitable for precision local oscillator generation

Applications

• Local oscillator generation for 5G wireless infrastructure
• Clock signal generation for high-speed data converters
• General-purpose RF frequency synthesis in communication systems

Procurement Notes

Verify the specific suffix and tape-and-reel configuration when ordering, as availability may vary by region. Confirm that the requested part matches the exact pinout and thermal pad requirements for your PCB layout. Ensure compatibility with the 3.3 V power domain and check for any recent design changes in the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when a single-chip solution combining PLL and VCO functionality is required for frequencies up to 6 GHz. It is appropriate for designs prioritizing low phase noise and compact footprint over discrete component implementations. Consider the 32-TQFN package constraints for thermal management and ensure the control interface aligns with the system's digital logic levels.

Part Context

This part belongs to the MAX2870 series of ultra-wideband PLLs from Analog Devices/Maxim Integrated. It shares architectural similarities with the MAX2870 but offers specific tuning characteristics optimized for broader frequency coverage. The series is engineered to provide robust performance in demanding RF environments, serving as a key building block for modern wireless transceivers and test equipment.

Replacement Considerations

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