Recent content by fidel

Thank you Berkeman for the information. Yes I will turn to the datasheets for details. Is it enough that I find the max possible resistance, with the calculated P=I^2*R to select the appropriate size? I used to use inductances for the separation, but in a tiny system, 0 ohm resistors should be...

Hi all. I'm working on an RF system including a 2.4G transceiver and a GPS receiver. I'll use a ground plane. What I intend to is to separate analog ground and digital ground and connect them together at the entry via a 0ohm resistor. My friend argues that a whole ground layer that connect to...

I guess it's the signal BW after modulation, but not sure. I'm requesting more information which is not presented on the web pages.

3x. I just found some from adi. The bandwidth they support is larger than what I desire. Will it cause trouble except that higher bandwidth will let more noise in?

Hi all. I'm designing an SDR transceiver. I need a RF chip/module that at least contains PA, LNA and Tx/Rx switch. It should perform conversion between analog or digital baseband/IF signal and 2.4GHz radio signal. Modulation/demodulation will not be done in this chip. The radio signal is...

Yeah, find a lot toolsets here. Thank you!

Well, just things like screwdrivers, needle nose pliers, diagonal cutters, wire strippers, wire crimpers, magnifiers, knives...

Hi there. I'm looking for a tool set for circuit board work. I tried digikey but only find discrete stuff. Where can I find such sets?

Got it! Thank you.

Well, to check the ground of the socket with an ohm meter, one probe to the "ground", how about another?

Hi all. We're moving to a new lab and I need to have a reliable ground for ESD protection, e.g. connecting the ESD mat safely. My questions are: can I just use the ground in the power outlet, or I need to request a different ground? Do I need to connect a resistor between the mat and the ground?

Thank you. I've got the definition :) Concerning the minimum output current required, I once connected PS_ON# to ground as the connector was floating, and the fan did run. But I didn't test the output voltage, so I don't know if the power was working properly then. And it seems the...

I want to use atx power from my pc as the source for my devices. How can i decide the footprint of the connectors, e.g. those with 20pins, 24pins, 4pins, ... Maybe i can goooogle them out using their formal names, but, :confused: what are they?