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This document introduces the characteristics and logic structure of hi3520DV400 chip, describes the functions, working modes and related register definitions of each module in detail, gives the interface timing relationship and related parameters in the form of charts, and describes the pin definitions and uses of the chip, its performance parameters and package size in […]

The process of 8-layer pcb proofing is similar to that of ordinary PCB proofing, but compared with ordinary PCB, there are more pressing processes. Today, Xiaobian will show you the specific process of 8-layer pcb proofing. Brief introduction of the differences between common double-sided pcb and multilayer Pcb; The double panel is the middle layer […]

I. media processing platform (MPP)hi3531/3532 coding 2. Video cache pool: provides large memory management function for media services. Third, the video coding module VENC supports the following protocol coding: (1) H.264 (2) JPEG (3) MJPEG (4) MPEG-4 IV. The input sources of the coding module include three types: (1) the user reads the image file […]

Electromagnetic compatibility design is closely related to specific circuits. In order to design electromagnetic compatibility, PCB designers need to minimize the radiation (RF energy leaking from products) and enhance their susceptibility to radiation (energy entering products) and anti-interference ability. However, for the common conductive coupling at low frequency and the common radiation coupling at high […]

A7@800MHz，32KBI-Cache，32KBD-Cache/128KBL2cache A17@1.25GHz，32KBI-Cache，32KBD-Cache/256KBL2cache HI3519V101 supports Neon acceleration and integrates FPU processing unit. ARM®big.LITTLE core architecture is supported. video coding H.264BP/MP/HP H.265MainProfile H.264/H.265 supports I/P/B frame and double P frame reference. HI3519V101 supports MJPEG/JPEGBaseline encoding HI3519V101 Video Coding Processing Performance H.264/H.265 coding can support the maximum resolution of 16M(4608×3456)Pixel. H.264/H.265 multi-stream real-time coding capability; 340 * 2160 […]

Copper cladding is to use the idle space on PCB as the datum plane and then fill it with solid copper. These copper areas are also called copper filling. The significance of applying copper is to reduce the impedance of ground wire and improve the anti-interference ability; Reduce voltage drop and improve power efficiency; Also, […]

Hai hi3518EV300 processor, as a new generation of consumer cameraSOC, integrates a new generation of ISP and the latest H265 video compression encoder in the industry. It leads the industry in low bit rate and high image quality. At the same time, it detects human figures and supports intelligent applications such as face and abnormal […]

Whether the amplifier gets current from this power supply or another power supply depends on the instantaneous polarity of the signal on the load. The current flows from the power supply, passes through the bypass capacitor, and enters the load through the amplifier. Then, the current returns to the ground plane from the ground terminal […]

In the design of pcb, we are pulling wires except the layout, so there are some awkward requirements for the outgoing line. It’s not just a random one. Let’s learn with Xiaobian! 1. In order to meet the production process capability requirements of domestic PCB factories, the conventional wiring line width is ≥4mil(0.1016mm) (3.5mil, i.e. […]

If there is a lack of effective communication between PCB designers in the project, several different versions of PCB design data may be generated, and numerous repetitive designs among team members may also occur. If different versions of design data can’t share a unified standard and format, it will inevitably cause communication barriers and management […]