SIM卡封装1

CS5460芯片在MSP430单片机中的应用(Application of CS5460 chip in MSP430 single chip microcomputer)

说明：  微带滤波器设计，包括低通、带通和高通三型滤波器参数设计，能够设置频率范围，自动生成滤波器参数。(Microstrip filter design, including low-pass, band-pass and high pass filter parameter design, can set the frequency range, automatically generate filter parameters.)

常用的有源晶振封装库和原理图库，AD环境。(AD environment commonly used active crystal package library and schematic library)

抱闸控制器，用PWM方式控制电机抱闸，在有效开通抱闸情况下缓解抱闸发热(The brake controller, using PWM to control the motor brake, brake in effective opening off brake fever)

很好的candence教程，含原理图PCB和例程，可以配合视频边学边做(Good candence tutorial, including schematic PCB and routines, can cooperate with video while learning to do)

说明：  矢量网络分析仪的基本原理，内容详细，实用！(Basic Principle of Vector Network Analyser)

A4988步进电机的驱动程序，使用STM32F407单片机驱动(A4988 stepper motor driver)

rtl8370单芯片8口千兆交换机原理图(Rtl8370 single chip 8 gigabit switch schematic diagram)

说明：  DAC7811驱动，好用的，测试电路是芯片手册12页给出的电路(The driver of DAC7811,I tested it and it could work well.)

说明：  4G模块EC20开发资料，硬件设计手册，AT指令，原理图和PCB图封装，完整开发资料。(Development Data of 4G Module EC20 and Hardware Design Manual)