Title :
Extraction of feedback information from circuit netlists
Author :
Shen, Ruijing ; He, Xiangqing ; Yang, Liu
Author_Institution :
Inst. of Microelectron. CAD, Tsinghua Univ., Beijing
Abstract :
For a successful analog/mixed signal design, various layout constraints have to be seriously addressed, which is one of the reasons why automatic design of analog layouts is intrinsically more difficult than that of digital layouts. Since feedback has long been a mysterious effect in virtually all analog integrated circuits, improving on constraint file can be done according to feedback information. In this paper, the technique of feedback circuit extraction (FCE) is presented, which is the transformation of feedback design descriptions from circuit level to functional level. Novelly, the algorithm of FCE utilizes the direction of signal flow to extract detailed information of intentional feedback network
Keywords :
circuit feedback; integrated circuit layout; mixed analogue-digital integrated circuits; analog integrated circuits; analog layouts; analog signal design; circuit netlists; digital layouts; feedback circuit extraction; feedback information; intentional feedback network; mixed signal design; Analog circuits; Analog integrated circuits; Data mining; Design automation; Feedback circuits; Helium; Integrated circuit technology; Microelectronics; Mixed analog digital integrated circuits; Signal design;
Conference_Titel :
ASIC, 2005. ASICON 2005. 6th International Conference On
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9210-8
DOI :
10.1109/ICASIC.2005.1611472
