76 GHz to 81 GHz FMCW Radar Transmitter

Product No: WEA7681TXV0222GDownload Datasheet

  • Applications:Automotive Radar Applications
  • Maturity:Development
  • Foundry:GF
  • Geometry (nm):22nm
  • Process Node:22FDX

The WEA7681TX22G is a transmitter chain for radar applications covering the 76 GHz to 81 GHz automotive band. The transmitter chain consists of a programmable phase shifter, two frequency doubler stages and a 3-stage power amplifier. All the stages are supported by programmable bias current circuitry. The transmitter has a dual power detector scheme for optimum transmit power management and has a build-in Analog Test Bus (ATB) for complete monitoring of the bias condition of all whole IP for FUSA. It is implemented in 22FDX FD-SOI process. The WEA7681TX22G occupies a silicon area of 1500 um x 460 um.

Key Features
  • Output Frequency Range: 76 GHz to 81 GHz
  • Input Frequency Range: 19 GHz to 20.25 GHz
  • Power Supply Voltages: 1.8 V Analog, 0.8 V Logic, 1.25 V to 1.6 V Power Amplifier
  • Power at BGA output: 17 dBm (Silicon to Package Transition 1.6 dB)
  • 2×8 Bit Binary Controlled Cartesian Phase Shifter with Range 0 – 360o and 2.8 o degrees of accuracy
  • Turn ON/OFF time: < 100 ps
  • Automotive Grade 1 (-40 oC to 125 oC)
  • Power Consumption: 947 mW
  • Area:1500 um x 460 um
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