ADF5904 Receiver Downconverter

Analog Devices introduces a 4-channel, 24 GHz receiver downconverter with superior noise and power performance in a space-saving package

Image of Analog Devices' ADF5904 Receiver DownconverterADI's ADF5904 integrated multi-channel receiver downconverter achieves a 10 dB noise figure that is 3 dB better than competing devices, while using 50% less power, and is assembled in a small, cost-effective 5 x 5 mm LFCSP plastic package. Each of the device’s four on-chip receiver channels uses a simple single-ended connection to four individual antennas, which simplifies RF-transmission-line design and PCB layout, and reduces board size. The receiver downconverter then simultaneously handles four receive signals directly to produce a high-quality, high-amplitude baseband signal that easily connects to one of ADI’s four-channel analog-to-digital converters. The ADF5904 also incorporates an integrated temperature sensor that eliminates the need for discrete sensing components that otherwise can require additional time and resources to calibrate during system assembly and test.

The ADF5904 is designed for multi-channel receiver, high-frequency applications that use digital beam forming, such as automotive ADAS, microwave radar sensors, and industrial radar systems – environments where energy efficiency is becoming an important system-level design consideration. The ADF5904 24 GHz receiver enables these and other sensor applications by offering best-in-class receiver sensitivity while using less overall power.

Benefits and Features
  • Integrated baluns for single-ended receiver (Rx) inputs and local oscillator (LO) input
  • Rx channel gain: 22 dB
  • Noise figure (NF): 10 dB
  • P1dB: -10 dBm
  • LO input range: -8 dBm to +5 dBm
  • Rx to IF isolation: 30 dB
  • RF signal bandwidth: 250 MHz
  • Rx output impedance: 900 Ω differential
  • LO input buffer: 24 GHz
  • RF and LO S11 at 50 Ω: -5 dB
  • Qualified for automotive applications
  • Automotive radars
  • Industrial radars
  • Microwave (μW) radar sensors

ADF5904 Components

ImageManufacturer Part NumberDescriptionAvailable Quantity
Published: 2015-06-24