PCB Technical - Related PCB Technology Blog Posts page 206

2021-08-22

PCB company's analysis of stripline design in millimeter wave frequency bandAlthough the design and manufacture of P...

2021-08-22

Choosing PCB materials for RF high power applicationsAlthough there are some high-power PCB applications that have nothi...

2021-08-21

GCPW circuit applied to millimeter wave frequencyWith the rapid development of modern communication technology, spectrum...

2021-08-21

Several skills of pcb circuit board weldingSoldering circuit boards is a basic skill for electronic engineers, and you s...

2021-08-21

This article uses simple mathematical formulas and electromagnetic theory to illustrate the hidden behaviors and characteristics of passive components on printed circuit boards (PCBs). These are the requirements that engineers have to design beforehand when they want to make their electronic products pass EMC standards. Must have basic knowledge.

2021-08-21

The interconnection of the circuit board system includes three types of interconnection between the chip to the circuit board, the interconnection within the PCB board, and the PCB and external devices. In RF design, the electromagnetic characteristics at the interconnection point is one of the main problems faced by engineering design.

2021-08-21

The increase of mobile phone functions has higher requirements for PCB board design. With the advent of Bluetooth devices, cellular phones and the 3G era, engineers are paying more and more attention to the design skills of RF circuits. Radio frequency (RF) circuit board design due to the theoretical uncertainty

2021-08-21

Properly placing a capacitor of appropriate capacity near the power supply pin of the IC can make the IC output voltage jump faster. However, the problem does not end here. Due to the limited frequency response characteristics of capacitors, the capacitors cannot generate the harmonic power required to drive the IC output cleanly in the full frequency band.

2021-08-21

The above definition is the definition that I used to focus on understanding in embedded systems 6 or 7 years ago. There are many definitions in the book, but in this field, no one dares to say that their definition is very accurate. Yes, including those experts and scholars, after all, embedded system is a comprehensive subject in the field of computer

2021-08-21

Layout is one of the most basic job skills for PCB design engineers. The quality of the wiring will directly affect the performance of the entire system. Most high-speed design theories have to be finally implemented and verified through Layout. It can be seen that wiring is very important in high-speed PCB design.

2021-08-21

For an instrument with excellent performance, in addition to selecting high-quality components and reasonable circuits, the correct structural design of the component layout of the printed circuit board and the direction of electrical wiring is a key issue that determines whether the instrument can work reliably.

2021-08-21

Through the above analysis of the parasitic characteristics of vias, we can see that in high-speed PCB design, seemingly simple vias often bring great negative effects to circuit design. In order to reduce the adverse effects caused by the parasitic effects of vias, the design can be done as much as possible

2021-08-21

In PCB design, wiring is an important step to complete product design. It can be said that the previous preparations are done for it. In the entire PCB, the wiring design process has the highest limit, the finest skills, and the largest workload. PCB wiring includes single-sided wiring, double-sided wiring and multilayer wiring.

2021-08-20

The micro-optoelectronic mechanical system (MOEMS) is an emerging technology that has become one of the most popular technologies in the world. Driven the demand for MOEMS and optical interconnection, the application of PCB design MOEMS devices in the field of optoelectronics continues to grow.

2021-08-20

The circuit board layout of radio frequency (RF) circuits should be carried out on the basis of understanding the basic principles of circuit board structure, power supply wiring and grounding. Provides some practical and proven power wiring, power bypass and grounding techniques, which can effectively improve the performance indicators of RF design.

2021-08-20

In recent years, an increasingly important issue in the field of high-speed design is the design of circuit boards with controlled impedance and the characteristic impedance of interconnect lines on the circuit board. This article will give a brief and intuitive introduction to characteristic impedance.

2021-08-20

The signal rise time is about 10% of the clock cycle, that is, 1/10x1/Fclock. For example, the rise time in 100MHZ is about 1NS. If you don't know the rise time, you can think that the signal bandwidth is about 5 times the clock frequency.

2021-08-20

You can often see people asking the snake-shaped question. Usually we can see the serpentine lines in places where most of them are high-speed high-density boards. It seems that the boards with serpentine lines are more advanced. If you can draw serpentine lines, you are a master.

2021-08-20

PCB stencil mainly has the following factors that will affect the quality of PCB stencil: The correct printing method can maintain the quality of the stencil. On the contrary, incorrect printing methods such as excessive pressure, PCB stencil or PCB stencil during printing If the PCB is not level, the stencil will be damaged.

2021-08-20

The pcb clock frequency exceeds 5MHZ or the signal rise time is less than 5ns, generally a multilayer board design is required.Reason: The area of signal loop can be well controlled by adopting multi-layer board design.