Tagged Questions
7
votes
1answer
219 views
Best place to place a decoupling capacitor
See this image which gives four options to place decoupling capacitors:
(from http://www.learnemc.com/tutorials/Decoupling/decoupling01.html)
I would say option (d) isn't good - I would recommend ...
6
votes
1answer
342 views
Is my design good enough in terms of noise and EMI as its 80MHz MCU board [closed]
Recently I'm trying to design a PCB board for an MCU. The problem is I haven't considered any noise aspects before. As I'm in a contest for new electronics product run by our university I have to ...
4
votes
4answers
569 views
How important is it to put decoupling caps on the same side of the PCB?
How important is it to have decoupling capacitors on the same side of the PCB as the IC? I am desperately short of space in a design, and it would really help to put the caps on the bottom side.
I ...
6
votes
2answers
232 views
Adequate decoupling / noise reduction for two accelerometers?
This is my first PCB, so please forgive some of my ignorance! I'd like to mount two accelerometers (ADXL193: +/- 250g), orthogonally, on the same PCB, and have a question about noise.
The current ...
10
votes
6answers
1k views
Decoupling capacitors on the bottom layer?
I'm using 0.01 uF decoupling capacitors in a 0805 package, on each Vcc/GND pair of my CPLDs. So, around eight capacitors in total). I find it a bit easier to route the board if the decoupling ...
3
votes
2answers
396 views
Bypass capacitors for BGA packages
We have designed quite a few FPGA-based boards, and so far, we have used a lot of bypass capacitors. Our rule of thumb was, "as many as we can".
In our next design, we would like to reduce the part ...
53
votes
7answers
11k views
Decoupling caps, PCB layout
I guess I've been somewhat ignorant when it comes to the finer details of pcb layout. Lately I've read a couple of books that try their best to lead me on the straight and narrow. Here is a couple of ...
