While your PCB layout will never be completely rid of parasitics, you can reduce parasitic capacitance in a PCB layout or take some steps to limit its effects on signal and power integrity. Whether you’re engaging with a PCB service bureau or creating the layout yourself, follow some guidelines to ensure parasitic capacitance does not cause your design to fail.
Electronic devices and systems rely on the clear and uninterrupted high-speed transmission of data within their circuitry. However, the signal transmission integrity can be degraded by both internal and external sources of electronic interference. It is vital to lay out the PCB to mitigate such degrading effects and ensuring the signal’s clear delivery. Here are some rules and techniques for signal integrity in PCB design that can help.
The resonance of a vibrating quartz crystal is often used in electronics to determine the oscillation frequency for timing signals in a circuit board. While there are different ways to create this timing, quartz crystals are well known for their effectiveness and stability. Like many other high-speed circuit board design aspects, the oscillator circuitry needs to be laid out with care to avoid signal integrity issues. Here are some crystal oscillator PCB layout guidelines that can help.
Personal computing devices, IoT, and many other embedded systems now require a diverse amount of electronics built onto one circuit board. These systems usually combine digital and analog circuitry running at high frequencies, creating many problems for circuit board designers if they aren’t prepared. Controlling signal and power integrity in a design is essential to avoid EMI problems that can ruin the device’s performance and cause it to fail its validation tests. Here are some PCB design rules for high-frequency layouts that can help.
Redesigning a PCB to accommodate an updated part can be time-consuming and costly, especially considering all of the validation that some electronics require. Here are some ideas to help you manage electronic component obsolescence so that you aren’t left stuck in the dark.
When designing boards for GbE networking, the board must include a connector that will accept an RJ45 plug. Fortunately, all Ethernet cables have these end connectors. As GbE networking is high-speed, there are several issues to consider, which are summarized below.
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