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Re: 3V 15mA battery for RF?
Dave,
I think what you said makes sense. This essentially is more a battery question. I will ask the manufacturers.
Bob
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bepobalote,
I don't know how to quantitatively calculate it. Some rather big caps although reserves more power, their...
Hi,
Could someone recommend a small-sized battery 3V battery that could sustain 15mA current for several seconds?
Our application requires two RF end device to occasionally establish some connection, so that when A is transmitting, B needs to be in receiving mode. Although A’s transmission...
This is just power plane boundaries. Rule violation indicators is usually of light and bright green (although you can change its default color just as you can change color for virtually any objects including the power plane boundary line).
re: BGA on both sides
Ray,
Many chips uses a thermal pad and thermal vias to dissipate heat to internal GND planes(s). In such case isn't the GND plane(s) a very big heatsink? Could you give some examples on the problems you encountered?
Bob
Hi,
What is the smallest package DIP switch available? I am looking for 8 position, 6 position and 3 position switches, but found many common switches too large. Could anyone recommend some with really small footprints?
Bob
Hi,
Would it be better to place components on top or both sides of the PCB board?
It is certainly OK to have components placed on the bottom of board, and there are many resistors, capacitors and inductors placed like this commonly.
The question is with ICs, especially BGA and QFN packaging...
Hi,
I found a connector below, which allows using screw for fastening, particularly convenient if frequent attach/detach are required.
However, I don’t know the formal name for this type of connector so cannot search it on the net.
Does anyone know what it is called?
Bob
Hi,
How could I determine the required clock characteristics for a particular IC?
Many datasheets list only frequency requirements. However, there are also important factors including:
1. Voltage.
2. Shape, which can be either sinusoid or square wave
For standard I/O pins, there are...
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