DevHeads IoT Integration Server
The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.
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DevHeads IoT Integration Server
The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.
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How Do I use an Op AMP for Signal Amplification
Recently Studying about Op Amp and Its Operations, needed some guides from you guys on how i can effectively use Op AMP for Signal Amplification. What are the best Op Amp IC which is cost effective that can be used for Audio Amplification. Want to use it in my design so needed some Guide.
Solution:
Audio has its own series of op amp which is optimised for audio signal and it would not be a part of standard Opamps series. Audio Opamps and circuits are readily available in market, so I would recommend Opamps like NE5532 for first designs.
Rule of Thumb for Mouse Bites?
Creating a PCB that I envision as normally being attached, with a section that can be broken off and discarded in certain circumstances. At this point I'm just doing a V-score, which might be the correct solution, but if I wanted to do mouse bites do people generally have a footprint that they use (KiCad in my case)? Or is there a rule of thumb for drawing them in? Thx!
Should I have a Dedicated Power Plane on My PCB
During my last design I used a dedicated layer/plane for power. But during the design review the engineer asked me to remove the dedicated plane and just route the power around. And use that plane for ground. Wanted to know when is right or wrong to use a dedicated plane for power, need your insight on this. Thanks.
How to Reduce Crosstalk in a PCB Layout
If the space in a pcb board is fixed and there are limited number of routing space on the board, what can i do in order to reduce crosstalk, because the traces are tightly coupled which can lead to noise issues. In this case it is a High Speed Board.
Solution:
I recommend using a multi-layer PCB with the adjacent layer below the TOP layer made of a full solid ground reference plane. Plus, I would not recommend to use a copper pour on the top layer when using the inner layer reference plane.
How do I create a 50 ohms Impedence Trace
Recently designing a PCB board that has four layers, am using SIM7020E chip from SIMCOM, a cellular Chip. The Datasheet said i should Use a 50 ohms trace line on my PCB for the antenna Pin side in order to match the circuit. What will i do to get 50 ohms trace value for the four layers board. Are there any tools or steps needed to take ?
Slow rise time on SD_CLK causes boot failure
Hello everyone,
I would like to consult on an issue I’m having with the SD_CLK signal of my board. The board is a UPnP music server / router and it boots from an SD Card to load the Uboot, Linux Kernel, and Linux user space. There are already several boards manufactured. There is one board that fail to boot from the SD Card outright and one board that initially worked fine but failed at a later time. The rest of the boards worked fine, but it is concerning that a failure might also happen in the future.
Considering all is same (hardware / binary image loaded), there is a significant delay in the rise up time on SD_CLK signal of the failing board....
