一种新型DVD激光读取头光电检测集成电路的研制  

A New Design of CMOS PDIC for DVD Optical Pickup System

作　　者：胡海军[1] 李挥[1] 张政操[1] 安杰[1] 马建设[2] 程雪岷[2] 林家用[2] 

机构地区：[1]北京大学深圳研究生院集成微系统科学与工程重点实验室,广东深圳518055 [2]清华大学光盘国家工程研究中心,北京100084

出　　处：《半导体光电》2008年第6期839-843,共5页Semiconductor Optoelectronics

基　　金：广东省粤港关键领域招标项目(2005A10208004)

摘　　要：在介绍DVD光学头工作原理和伺服检测方法的基础上,提出了一种芯片面积小、输出失调电压低的单片集成的PDIC(Photo Detecting Integrated Circuit)的设计方案。芯片采用0.6μm CMOS工艺来实现,用于光检测的四象限PIN光电二极管阵列,在入射光波长为650nm情况下,响应度为0.32A/W。互阻放大器的-3dB带宽可达到100MHz,单个通道灵敏度可达到25mV/μW,平均直流偏置失调电压可减小到10mV。Based on the introductions of working principles and the method of servo detecting of DVD optical pick-up system, a novel design of CMOS PDIC （photo detecting integrated circuit） solution is introduced. Chips were implemented by 0. 6μm CMOS process. The post-layout simulations show that under the 650 nm wavelength, the spectral responsivity of the four quadrants PIN photo-detector array is 0. 32 A/W; the --3 dB bandwidth of this transimpedance amplifier is 100 MHz, and the voltage deviation of 10 inV. sensitivity is 25 mV/μW, as well as an offset

关 键 词：光存储 光电检测 光电二极管 模拟集成电路 

分 类 号：TN256[电子电信—物理电子学]