The WEA910S22G is a PLL-based high performance frequency synthesizer implemented in 22FDX FD-SOI process with integrated multifunction chirp frequency generator. It generates a 10 GHz fundamental frequency and various frequency ramps with integrated VCO utilizing a 64band autocalibration system. The synthesizer is powered by a 1.5 V and 0.8 V supplies. The WEA910S22G occupies a silicon area of 3150 um x 700 um (2.2 mm2). It exhibits high performance, high integration and flexibility for automotive RADAR applications.
9.125 GHz to 10.375 GHz Fractional–N Synthesizer, FMCW Radar Linear Chirp Generator
Overview
Key Features
- Low phase Noise PLL
- Differential reference input 300 MHz - 700 MHz
- 0.8 V PLL Supply - 1.5 V VCO Supply
- 24 bits Programmable order MASH (1st /2nd /3rd )
- Banerjee Figure of Merit: -217 dB
- Programmable Active and Passive Loop Filter with high/low loop bandwidth mode
- LC-VCO with 64 bands
- Automatic Band Selection System
- Output Frequency 9.125 GHz - 10.375 GHz
- 125 MHz tuning range per Band, Lock time <1 us, Chirp ramp < 10 us, FM Chirp Linearity error < 1%
- Typical In-band noise -100 dBc/Hz
- Area: 3150 um x 700 um (2.2 mm2 )
Block Diagram
Applications
- Chirp Generator for Radar Applications
Technical Specifications
Foundry, Node
GF, 22FDX
Maturity
silicon proven
Availability
Silicon verified in GF 22FDX - Metal Option 11 & 19
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