Search

Experimental studies were made on electromagnetic susceptibility and malfunction of high speed CMOS digital printed circuit boards (PCB). We measured the induced noise voltage on a printed loop circuit caused by electromagnetic emission from an adjacent digital PCB. Electromagnetic susceptibility of a bus circuit was measured with a TEM cell in frequency range of 10 to 250 MHz. The induced noise increased near the resonance frequency of the circuit. We also measured the amplitude of noise voltage on a signal line that causes malfunction of a digital circuit, and the result shows that the marginal voltage depends on the supply voltage of CMOS circuit and the noise frequency.

宇宙用電子機器設計支援システム(ELEGANT)は、ハードウェア・ソフトウェア協調設計によるデジタル回路のトップダウン設計を行なうツールである。ELEGANTを使用することにより、人工衛星搭載デジタル機器を高品質かつ短期間に設計することが可能となる。本報告書では、2004年度に実施したELEGANTの全体システムの基本設計結果について報告する。, Electric Design Guidance Tool for Space Use (ELEGANT) has the capability of top down design using hardware and software collaborating design methodology. It will realize high quality and rapid design of satellite onboard digital circuits. In this paper, the preliminary design result on the ELEGANT system will be reported., 資料番号: AA0048132000, レポート番号: JAXA-RM-04-023