Showing posts from December, 2020

Talk Something about Impedance PCB

 Considerable signal reflection and falsification will occur, thus resulting in design failures if there is no impedance control in the PCB. Normal signals, such as PCI bus, pci-e bus, USB, Ethernet, DDR memory, LVDS signal, etc. also require impedance control. Finally, PCB design will be achieved by impedance control and it can put forward for PCB technology. After talking with PCB manufacturers and combining with the use of EDA software, the trace with impedance control can be made according to the integrity of signal. Different routing methods can be calculated to obtain the corresponding impedance. Microstrip line It is composed of a ribbon conductor and ground plane, with dielectric in the middle. If the dielectric constant of the dielectric, the width of the line, and the distance to the ground plane are controllable, the characteristic impedance of the dielectric is also controllable, and the accuracy is less than + / -5%. Stripline A strip is a strip of copper between two co

To find the cheapest pcb manufacturer china

“Why your products are so cheap?” Frequently, the visitors and PCB buyers are questioning why our PCBs enjoys a cheap price and whether we secretly sacrifice the quality to achieve the low cost. Of course not! PCBSKY is a professional PCB manufacturer platform that devotes to gathering the best PCB manufacturer in China and offering the best service to our customers. And our printed circuit boards enjoy the highest quality that certified by international institutions. Why the PCBs we offer are the cheapest? 1.PCBSKY has established strong and reliable relationship with plenty of experienced PCB manufacturers in China, which provides various options of price and lead time to our customers and make the price more competitive and favorable. Thus, customers can place their orders with the cheapest and best price. 2.We develop a transparent ERP system that make the whole purchasing process touchable for customers. With this system, there is no hidden cost in purchase, and customers will g


 Breadboards are great for prototyping circuits, but they aren’t so good for actually using the thing you’re building. At some point, you’ll probably want to make a project more permanent. The best way to do that is to put it on a PCB. In this tutorial, I’ll walk you through the process of designing a PCB layout and getting it printed by a custom PCB manufacturer. The performance of your circuit will depend greatly on how it’s laid out on the PCB, so I’ll give you lots of tips on how to optimize your design. You can always etch PCBs at home with a process that’s similar to developing prints from photographic film. But that method is messy and it uses a lot of chemicals. It’s much easier (and cheaper) to get your PCB made by a professional manufacturer. To demonstrate the process, I’ll use an online service called EasyEDA to design a PCB layout for an LM386 audio amplifier, then I’ll have it manufactured and show you the results. Their free online design software is easy to use and the