76 GHz to 81 GHz FMCW Radar Transmitter
Overview
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 (Includes 1.6dB loss from package to silicon transition)
- 2x8 Bit Binary Controlled Cartesian Phase Shifter with Range 0 - 360o and 2.8o 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
Block Diagram
Applications
- Automotive Radar applications
Deliverables
- GDSII, Database, SystemVerilog Models
Technical Specifications
Foundry, Node
GLOBALFOUNDRIES 22nm 22FDX
Maturity
silicon proven
Availability
22FDX FD-SOI
GLOBALFOUNDRIES
Silicon Proven:
22nm
FDX
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