Category Archives: Uncategorized

Nanjing PCB design power supply noise The common interference source in the circuit comes from the power supply, and this interference signal is usually introduced through the power supply pin of the active device. For example, the timing diagram of A/D converter output in is shown in. The sampling speed of A/D converter is 40ksps, […]

1、 Preface At present, high-speed PCB design is widely used in the fields of communication, computer, graphics and image processing. All high-tech value-added electronic product designs pursue the characteristics of low power consumption, low electromagnetic radiation, high reliability, miniaturization and lightweight. In order to achieve the above goals, PCB via design is an important factor […]

When it comes to 24-hour expedited PCB boards, many customers are familiar with it. Some people will say that 24-hour expedited PCB boards are nothing, and 8-hour expedited PCB boards are available! In fact, it can’t be done in 8 hours, unless there is a discount in some processes. Here, I’ll tell you how this […]

The clock in mobile phone can be roughly divided into logic circuit main clock and real-time clock.The main clock of logic circuit usually has 13m, 26m, and 19.5m;The real-time clock is generally 32.768KHz.The real-time clock frequency in mobile phone is basically 32.768KHz, which is generated by 32.768KHz crystal and other circuits.In order to maintain the […]

I believe that anyone who knows the production process of pcb proofing knows that electroplating is an indispensable and most important link in PCB, because the success of electroplating directly affects whether the PCB is qualified. Why can’t the quality be guaranteed in some PCB factories? It is because electroplating is not well controlled or […]

If you want to reduce PCB manufacturing costs, you usually need to seek the service of the manufacturer.For high-quality price, high-quality service and high-quality service, you will understand that prefabricated house is the best choice.But expensive manufacturers are not the only products that can reduce costs.The way you design electronic circuits has a big impact […]

When a customer places an order, the PCB factory will reply to you with a delivery date, but sometimes there will be delivery delay. For customized products, this delivery delay is understandable. Especially this year, affected by the epidemic situation, the backlog of orders, the shortage of staff, the untimely supply of upstream materials and […]

ZM976(MTK6797) Android core board is the world’s first 10-core high-performance 4G full Netcom Android core board module. The module adopts the latest high-end platform Helio X20(MT6797) of MediaTek, and has a 64-bit three-cluster ten-core A72 architecture CPU with the highest frequency of 2.3GHz,64 and a 64-bit Mali-T880 MP4 780MHz GPU. Support seven-mode full-frequency network, 25-megapixel […]

Discussion on simulation optimization of high-performance mobile phone from PCB design PCB is the basic component of electronic products, and its quality is directly related to the function and life of electronic products. In the past two years, the focus of PCB market has shifted from computer and communication fields to smart phones and tablet […]

Despite the continuous development of competitive testing technology, online testing (ICT) is still one of the effective methods to test PCB components. The lasting appeal of ICT comes from the testing speed, usually only a few seconds. In addition, the test is accurate, and component-level error detection speeds up the diagnosis process and reduces the […]