应用于红外读出电路的LVDS接收电路设计  

Design of LVDS Receiver Circuit Used in Infrared ROIC

作　　者：于越 YU Yue(IRay Technology Co.,Ltd.,Yantai 264000,China)

机构地区：[1]烟台艾睿光电科技有限公司,山东烟台264000

出　　处：《红外》2024年第3期15-22,共8页Infrared

摘　　要：在大规模红外读出电路中,接口电路的数据传输效率及接口数量尤为关键。传统接口电路采用并行接口进行数据传输,这种方式会占用较多的芯片引脚。为了提升数据的传输效率,设计了一款用于数据接收的3通道串行低压差分信号(Low Voltage Differential Signaling, LVDS)接口电路。电路采用0.18um互补金属氧化物半导体(Complementary Metal Oxide Semiconductor, CMOS)工艺设计。仿真结果表明,LVDS接口电路在400 MHz频率下,能够将2路接收端数据转换为8路数据并将其输出给内部数字处理单元。与传统并行接口相比,本电路节省了6个数据传输引脚,大大提高了数据传输效率。In large-scale infrared readout integrated circuits(ROIC),the data transfer efficiency and the num-ber of interface circuits are particularly crucial.Traditional interface circuits use parallel interfaces for data transmission,which takes up a significant amount of chip pins.In order to improve the efficiency of data transmission,a 3-channel serial low voltage differential signaling(LVDS)interface circuit is designed for data reception.The circuit adopts a 0.18μum complementary metal oxide semiconductor(CMOS)process.The simulation results show that the LVDS interface circuit can convert 2-channel receiver data into 8-channel data at a frequency of 400 MHz and output it to the internal digital processing unit.Compared with traditional par-allel interfaces,this circuit saves 6 data transmission pins,greatly improving data transmission efficiency.

关 键 词：低压差分信号 LVDS 红外读出电路 串并转换 

分 类 号：TN214[电子电信—物理电子学]