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Hardware development notes (VIII): basic process of hardware development, making a USB to RS232 module (VII): creating a basic dip component (crystal oscillator) package and associating the principle

2022-06-29 13:56:00 【51CTO】

Preface

   With the schematic diagram , Can design hardware PCB, In the design PCB There is also a coordinated priority action , Mapping encapsulation , The components of the schematic library are designed by us . In order to better describe the packaging design process , This article describes creating a crystal oscillator package （DIP）, Connect the components of the schematic diagram to the pin package .

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Schematic packaging analysis

   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram

  • Serial number 1：USB Port packaging , see datasheet establish
  • Serial number 2：CON encapsulation , Use dip2.54,2dip
  • Serial number 3：ASM1117-3.3V encapsulation , see datasheet establish
  • Serial number 4：CON encapsulation , Use dip2.54,3dip
  • Serial number 5： Capacitor package , choose 0603 establish
  • Serial number 6：CH340G encapsulation , see datashee establish
  • Serial number 7： Crystal oscillator package , see datasheet establish
  • Serial number 8：MAX232 Component packaging , see datasheet establish
  • Serial number 9：CON encapsulation , Use dip2.54,5dip

   above , Actually com There is a universal ,0603 These are also general standard packages .

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Create crystal oscillator package

Package dimension drawing of crystal oscillator

   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ encapsulation _02

  dip And patch , We chose dip Of .

establish Pad Pad （ circular , Outside diameter 1.5mm, The inner diameter 1.0mm）

   No need to create , General dip All are 0.6 Left and right , The previous ones can be used in general ：
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ encapsulation _03

<br>

Create component packaging

   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram _04
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram _05
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Insert a picture _06
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Insert a picture _07
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Insert a picture _08
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ encapsulation _09
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Insert a picture _10
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ encapsulation _11
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Insert a picture _12
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Insert a picture _13
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram _14

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Schematic Association encapsulation

Step one ： Open the schematic project

   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram _15
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram _16

Step two ： Double click the component to add the package

   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ Schematic diagram _17
   Hardware development notes （ 8、 ... and ）: Basic process of hardware development , To make a USB turn RS232 Module （ 7、 ... and ）： Create the foundation DIP components and parts （ Crystal oscillator ） Encapsulate and associate principle primitive devices _ encapsulation _18

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