Analog Devices Inc. ADF4401A Translation Loop Module

Analog Devices Inc. ADF4401A Translation Loop Module is a fully integrated System-in-Package (SiP) offset module with an RF output frequency ranging from 62.5MHz to 8GHz. This module includes a Voltage Controlled Oscillator (VCO) and calibration Phase-Locked Loop (PLL) circuit. This solution reduces board space and complexity compared to traditional discrete translation loop solutions designed on a Printed Circuit Board (PCB). The ADF4401A translation loop module provides a frequency synthesis solution for engineers designing highly competitive systems. This module requires an external phase detector or Phase-Frequency Detector (PFD) and an external Local Oscillator (LO) to form a frequency synthesis solution. Typical applications include instrumentation and measurement, automated test equipment, aerospace, and defense.


  • 62.5MHz to 8GHz RF output frequency range
  • 9fs RMS jitter at 8GHz output
  • 17dBm IF output power at 6GHz RF output
  • 90dBc LO_IN to RF output
  • 90dBc spurious-free dynamic range
  • Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output
  • Low phase noise and voltage-controlled oscillator
  • 3.3V analog, digital, and mixer power supplies
  • 5V amplifier and VCO power supply
  • RF output mute function
  • 18mm x 18mm, 80-terminal LGA_CAV
  • Supported in the ADIsimPLL design tool


  • Instrumentation and measurement
  • Automated test equipment
  • Aerospace and defense

Functional Block Diagram

Block Diagram - Analog Devices Inc. ADF4401A Translation Loop Module


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Published: 2021-04-07 | Updated: 2022-03-11