有限冲击响应模拟滤波器，可自行设计滤波器类型，拓扑结构、高、低截止频率 增益、窗函数等等，滤波效果好。-Limited impact response analog filter, can to design filter types, topology structure, high and low cut-off frequency Gain, window function and so on, filtering effect is good.

公共端：共阳 脉冲：最大2MHz 对于57电机来说 最大频率为1K 方向：高低信号 脱机：输入低电平时电机电源被切断。也就是说的使能，高有效 步距角：1.8度-Common: common anode pulse: maximum 2MHz to 57 motors for maximum frequency of 1K direction: high and low signal off: When entering low motor power is cut off. Th

比较JPLDE405的切比雪夫系数导出的位置与低精度月球坐标分析。-Comparative Analysis of JPL DE405 cut Chebyshev coefficients derived position with low accuracy lunar coordinates.