High Speed PCB Design: Some Considerations and Tips
High Speed PCB Design: Some Considerations and Tips
Printed Circuit Boards (PCBs) are part of everyday life. They are used in televisions, cell phone, calculators, wrist watches, computers, and almost every electronic gadget that we use daily. With technological advances occurring at a fast pace, PCBs have been witnessing rapid changes. Many companies are now stepping forward to create high speed PCB design layouts in order to produce a super tech electronic device.
A PCB layout becomes more intricate as system frequency and pin density increases. An effectively designed high-speed PC board integrates devices and other electronic elements while avoiding the signal transmission problems often linked with high-speed I/O standards.
High Speed PCB Design Considerations
In order to achieve greater speed even in a low power environment, these considerations must be followed while making high speed PCB design:
* Minimal on-board noise: The noise generated from the distributed power network should be reduced to achieve high speed. This can be done by filtering and supplying power evenly to all the devices.
* Minimal crosstalk: The cross talk between parallel traces should be minimized to a great extent.
* Ground bounce effect: This effect should be minimized in order to stop noise and power loss.
* Reduced Signal reflection: A design should match impedance via proper setting on the I/O pad and terminating the signal line to reduce signal reflection.
High Speed PCB Design: Issues to be Addressed
Issues that need to be addressed to increase the speed efficiency of a printed circuit board include:
* Material selection for manufacturing a PCB
* Transmission line layouts
* Layout of routing plans in order to minimize cross talk and maximize signal integrity
* Termination process scheme layout
* Simultaneous switching noise
* Electromagnetic interference (EMI)
High Speed PCB Design: Single Ended Connections
Since there are no differential lines in single ended connections, any noise on these lines can affect their speed. Therefore, the following should be kept in mind while routing these lines:
* Impedance matching
* No ground splits underneath connections
* Minimized cross talk with the help of terminating resistors
* Reduced number of mediums used for connections. A maximum two are recommended for good speed.
An experienced manufacturing company can offer you the best high speed PCB design layouts to increase the work output of your system. PNC Inc has been providing services in this field since 1968 and is known as one of the best PCB manufacturing companies in Nutley, NJ. To know more about them, visit www.pnconline.com/
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