Field Programmable Gate Arrays (FPGAs) and microcontrollers are two critical building blocks in modern electronic systems. They provide programmable logic, processing capabilities and integrated computing and control functions, allowing designers to create custom functionalities. Having said this, these critical componenst are susceptible to EMI due to their high-speed operation and the complexity of their designs. These devices produce electromagnetic emissions that can interfere with nearby components or systems, leading to performance degradation, timing errors, data corruption, and even system failures. Also, they are vulnerable to external electromagnetic sources like radio frequency signals, power line disturbances, or electrostatic discharges.
To solve these challenges, designers employ several techniques to reduce EMI and enhance electromagnetic compatibility (EMC). One of the commonly used approaches is ensuring proper PCB layout and grounding techniques. Other methods such as implementing proper signal and power integrity by reducing trace lengths, using appropriate decoupling capacitors, and separating analog and digital sections, and implementing different types of shielding solutions. This post discusses these techniques and helps you understand how board level shields help to mitigate the effects of EMI in FPGAs and microcontrollers.
Types of Shielding Techniques for FPGA and Microcontroller Applications:
There are several types of shielding techniques commonly used in FPGA and microcontroller applications. Here are the three commonly used techniques listed.
When choosing shielding techniques for FPGA and microcontroller applications, it is crucial to consider the system's specific requirements and constraints. Factors such as the operating frequency, space limitations, and cost considerations play a significant role in determining the most appropriate shielding solution. Careful consideration of these factors ensures that the chosen technique effectively meets the needs of the application.
Board level shielding soluitons have emerged as the most popular choice for shielding for FPGA and microcontroller applications due to the benefits they offer. If you have been considering them for your FPGA and microntroller applications then you can consider SnapShot™ Board Level EMI Shield developed by XGR Technologies. Featuring non-conductive, polyetherimide inner surface and conductive, tin plated outer surface, these shields offer exceptional shielding performance in an ultra-lightweight and low profile solution. Contact us today to discuss your requirements for board level shielding for FPGA and microcontroller applications.
