双向、数字化的微型无线内窥镜胶囊内数模混合电路设计  

Analog-digital mixed-mode IC design for miniaturized bi-directional wireless endoscopy capsule

作　　者：谢翔[1] 李国林[1] 池保勇[2] 王志华[2] 李冬梅[1] 陈新凯[1] 李晓雯[1] 韩书光[1] 姚金科[1] 

机构地区：[1]清华大学电子工程系,北京100084 [2]清华大学微电子研究所,北京100084

出　　处：《清华大学学报（自然科学版）》2005年第10期1368-1372,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(60475018;60372021)

摘　　要：为保证无线内窥胶囊在电池供电情况下,能实现全消化道检查,提出了一种微型胶囊内的单片低功耗数模混合集成电路的设计。该单片系统主要包括图像采集、图像压缩,存储器和无线收发模块等。数字部分的低功耗设计能比无能量管理策略设计方法要节约36%的功耗,数字电路部分的功能和能量管理策略通过了验证,模拟射频电路部分的主要指标已通过仿真验证,整个数模混合芯片已采用0.18μm的CM O S工艺流片。Minature, wireless battery powered endoscopic capsules need to be able to diagnose the enture human digestive tract. This paper discribes an analog-digital mixed-mode low power IC design that fits inside a bi-directional miniaturized capsule. The system on a chip includes an image capture module, digital signal processing and a control module with image compression, static random access memory and a wireless transceiver module. The low power design of the digital circuits reduces the capsule power consumption by 36% compared to convertional designs. The digital circuits and capsule power management algorithm have been tested using field programmable gate arrays. The main specifications of the analog ray frequency circuits have been verified in simulations. The analog-digital mixed-mode chip has been taped out using 0.18 μm CMOS.

关 键 词：集成电路 无线内窥镜 数模混合电路 图像压缩 

分 类 号：TN409[电子电信—微电子学与固体电子学]