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JSSC 2020第2期RF & Wireless65nmPLLNeural Network Accelerator

A CMOS 7681-GHz 2-TX 3-RX FMCW Radar Transceiver Based on Mixed-Mode PLL Chirp G

65nm CMOS工艺的76-81GHz FMCW雷达收发器，支持MIMO处理与可重构调频波形。
65nm CMOS, 4GHz带宽, 110kHz RMS频率误差, 13.4dBm TX输出功率, 15.3dB RX噪声系数
FMCW雷达CMOS收发器MIMOPLL时间数字转换器
▸混合模式PLL调频波形生成
▸粗-细分段电流DAC支持快速频率下降
▸基于DLL的延迟时间校准提高TDC线性度
Abstract
A fully integrated 76–81-GHz frequency-modulated, continuous-wave (FMCW) radar transceiver (TRX) in a 65-nm CMOS is presented. Two transmitters (TXs) and three receivers (RXs) are integrated for multiple-input multiple-output (MIMO) processing. A 38.5-GHz mixed-mode phase-locked loop (PLL) with reconfigurable loop bandwidth and a frequency doubling scheme are employed to generate the reconfigurable FMCW chirp waveforms. The coarse-to-fine-segmented current DAC is utilized to support sawtooth FMCW c