Time and Time Management 1.What is procrastination? Plea give an example to illustrate it.Procrastination is the avoidance of doing a task which needs to be accomplished. It is the practice of doing
SMT相关资料SMT(Surfac e Mounte d Techno logy表面贴装技术)一、标准零件标准零件是在SMT发展过程中逐步形成的,主要是针对用量比较大的零件,本节只讲述常见的标准零件。目前主要有以下几种:电阻(R)、排阻(RA或RN)、电感(L)、陶瓷电容(C)、排容(CP)、钽质电容(C)、二极管(D)、晶体管(Q)【括号内为PC B【印刷电路板
⏹ 管脚说明及定义⏹ 基本电气特性VDD=5V ,T A =25℃的条件下: SD BYP IN-OV2Top View特性曲线图1:Input Amplitude VS. OutputPower图2:Input Voltage VS. Output Power图3:Output Power VS.THD+N图4:Input Voltage VS.Power Crrent图5:Frequency