High ? speed synchronized latch circuit and special clock driver are used , which adapt to the requirement of quick data - transformation with high accuracy and low power 采用高速同步鎖存電路和特殊結(jié)構(gòu)的時鐘驅(qū)動電路,在保證精度和功耗設(shè)計要求上,實現(xiàn)數(shù)據(jù)快速轉(zhuǎn)換。
In this paper design of some circuit including in a / d circuit is also analyzed , such as front analog circuit , sample clock circuit and data flip - latch circuit 同時對高速轉(zhuǎn)換器件及轉(zhuǎn)換電路中包括前端模擬電路、采樣時鐘、后端數(shù)據(jù)鎖存等輔助電路設(shè)計進行了分析。
The paper is completed research of measurement and control system based on dsp under technology . the paper is designed a card with the data - collection conversion and control by adopting mainly tms320f240 among the dsps as kernel processor , with peripheric a / d and d / a circuit epm7128 ' s decode and latch circuit and isa interface circuit 本論文主要是采用數(shù)字信號處理器dsp中的tms320f240作為核心處理器,結(jié)合外部的模數(shù)轉(zhuǎn)換和數(shù)模轉(zhuǎn)換電路、可編程邏輯器件epm7128的地址譯碼和鎖存電路和isa接口電路,設(shè)計了集采集、轉(zhuǎn)換、控制于一身的isa卡。