Category Archives: Uncategorized

Fpc is also called flexible circuit board, flexible circuit board and flexible circuit board. Referred to as flexible board or fpc, FPC flexible board has the advantages of high wiring density, light weight, thin thickness, less limitation of wiring space, high flexibility, etc. compared with common hard resin circuit board. Rapid proofing of Xi ‘an […]

It is the most skillful and limited in PCB design. Even engineers who have laid wires for more than ten years often feel that they can’t lay wires. Because they see all kinds of problems and know what consequences this wire will lead to when it is laid out, they don’t know how to lay […]

RK3399 is a low-power, high-performance application processor chip introduced by Ruixinwei, which is based on Big.Little architecture, that is, dual-core Cortex-A72 and quad-core Cortex-A53 combined architecture with independent NEON co-processors. It is mainly used in intelligent terminal devices such as computers, personal Internet mobile devices, VR and advertising machines. RK3399 has built-in multiple high-performance hardware […]

Freescale Kinetis series is a microcontroller based on ARM CORTEX-M4 introduced by Freescale. Design of Freescale K60 Clock System As shown in the above figure, the Freescale K60 clock system can find that there are four source clock sources of the device: ① Internal reference clock sources, including Fast IRC and Slow IRC (IRC-Internal Reference […]

Base station, information communication between base stations. V2 is the key technology to realize intelligent transportation technology in the future. NXP, formerly known as Philips Semiconductor Company with a long history, has a very mature practical application scheme and technical platform for vehicle-to-outside information exchange (V2X). On the vehicle V2X communication, NXP provides complete solutions […]

Design of AmlogicT972 mini-projector Motherboard of Morning Semiconductor Product type mini-projector motherboard Master platform Amlogic (Jingchen Semiconductor) Model T972 Projection chip DPP3436 Optical-mechanical drive chip Power management of DPP3436+PAD3000 Main points for attention in design 1. Meet Amlogic hardware design guidelines. 2. Considering that DDR needs to use the software driver of the original factory, […]

Basic requirements of wiring in high-speed PCB design (1) the outlet of rectangular pad of 1)QFP, SOP, etc. package should be led out from the PIN center (generally, shape is used). (2) The distance from the wiring to the board edge is not less than 20MIL. ) (3) Other network vias and surface wiring are […]

Besides the selection of components and circuit design, good printed circuit board (PCB) design is also a very important factor in electromagnetic compatibility. The key of PCB design is to minimize the reflow area and make the reflow path flow in the designed direction. The most common return current problems come from cracks in the […]

MCU is just the beginning … The cost and time-to-market requirements of entry-level MCU design are becoming more and more urgent. With the development of embedded software becoming the biggest contributor, MCU development kit must provide the same high-level value and usability as MCU. At present, designers demand powerful, simple, low-cost or, in some cases, […]

It is said that 5G will change everything, among which 5G medical health is an important application field of 5G technology in medical health industry. With the arrival of the official commercial use of 5G and the full integration and application of cutting-edge technologies such as big data, internet plus, artificial intelligence and blockchain, 5G […]