ADF4002

RECOMMENDED FOR NEW DESIGNS

Phase Detector / PLL Frequency Synthesizer

Analog Devices ADF4002 Product Info

10 February 2026 6

Features

400 MHz bandwidth
2.7 to 3.3 V power supply
Separate charge pump supply (V_P) allows extended tuning voltage in 3 V systems
Programmable charge pump currents
3-wire serial interface
Analog and digital lock detect
Hardware and software power-down mode
104 MHz phase detector

ADF4002-EP supports defense and aerospace applications (AQEC standard)

Download ADF4002-EP data sheet (pdf)
Military temperature range: −55°C to +125°C
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
See Data Sheet for additional features

Part details & applications

The ADF4002 frequency synthesizer is used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low-noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider and programmable N divider. The 14-bit reference counter (R counter), allows selectable REF_IN frequencies at the PFD input.

A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO). In addition, by programming R and N to 1, the device can be used as a standalone PFD and charge pump.

The ADF4002-EP supports defense and aerospace applications (AQEC standard).

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