ADF4002SRU-EP

Overview

The ADF4002SRU-EP is an enhanced product frequency synthesizer designed for defense and aerospace applications. It operates within a military temperature range of −55°C to +125°C and supports a 400 MHz bandwidth with a 2.7 V to 3.3 V power supply. The device integrates a low-noise digital phase frequency detector (PFD), a precision charge pump, and programmable reference and N dividers. Key electrical specifications include a maximum PFD frequency of 104 MHz, programmable charge pump currents ranging from 625 µA to 5 mA, and a separate charge pump supply (VP) allowing extended tuning voltages up to 5.5 V in 3 V systems.

Feature Summary

• Military temperature range operation from −55°C to +125°C
• Controlled manufacturing baseline with one assembly/test site and one fabrication site
• Programmable charge pump currents (625 µA to 5 mA) with separate VP supply
• Analog and digital lock detect capabilities with hardware/software power-down modes

Applications

• Clock conditioning
• Clock generation
• IF LO generation in wireless receivers and transmitters

Procurement Notes

Verify the specific ordering suffix required for the desired packaging format. The SRU variant corresponds to tube packaging, while the SRUZ variant also indicates tube packaging with RoHS compliance. Ensure the design accounts for the controlled manufacturing baseline and qualification data availability required for defense and aerospace standards.

Selection Notes

Select this component when military-grade reliability and wide temperature operation are mandatory. The separate VP pin allows tuning voltages up to 5.5 V even with a 3 V logic supply, accommodating various VCO requirements. Confirm that the 104 MHz maximum PFD frequency and 400 MHz RF input sensitivity meet the system's phase noise and spurious performance targets.

Part Context

This part belongs to the ADF4002-EP Enhanced Product family, specifically tailored for defense and aerospace markets under AQEC standards. It shares the core functional architecture with the commercial ADF4002 but differs in qualification, manufacturing control, and extended temperature rating. The SRU-EP designation identifies the tube-packaged version of this military-grade synthesizer.

Replacement Considerations

Direct replacements must be from the ADF4002-EP family to maintain military qualification and temperature ratings. Commercial variants like the ADF4002BRUZ lack the controlled manufacturing baseline and extended temperature range required for these applications.