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JSSC 2020第11期Data ConvertersNeural Network Accelerator

An Automotive LiDAR SoC for 240 192-Pixel 225-m-Range Imaging With a 40-Channel

一款采用双数据转换器的40通道高分辨率汽车激光雷达SoC,实现225米测距和240×192像素分辨率。
40通道, 240×192像素, 225米测距, 70-klx阳光, 10 FPS
汽车激光雷达SoC双数据转换器高分辨率测距
世界首个双数据转换器(DDC)整合ADC和TDC功能
无校准且容错的VCO-based ADC与MP-PDM反馈
40通道AFE集成不增加硅成本
Abstract
This article presents a 40-channel high-resolution automotive LiDAR system-on-chip (SoC), which utilizes the world’s first dual-data converter (DDC). The proposed DDC consolidates the functions of ADC and TDC into a single circuitry and achieves acquisition of both high-precision time and voltage data from the input, realizing a 5 × smaller analog front-end (AFE) area than prior arts. Such innovations lead us to a 40- channel AFE integration of the SoC without silicon cost increase, which charact