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Years ago I learned that passive CL filters have less losses than passive RC filters, as, if they are in resonance, have almost no resistance. Also, to get a 2nd order filter, you need just two elements (1 x C, 1 x L) compared to four elements you'd need for a 2nd order RC filter (2 x R, 2 x C)...
Always depending on what you need the scope for and how much money you're willing to spend. I don't know this specific model, but usually you can't be doing that much wrong with buying a Fluke - it probably wouldn't disappoint you.
The way the pins are connected is how it's explained in the datasheet (see attached picture)
The two bottom pins are the two clock inputs. The pin in the upper row is OSC Out. In the datasheet it's written, that the crystal has to be connected to CLK A on one side, and connected to CLK B and...
Well, it's a through-hole-IC. The IC is on the top layer, but it's pins are soldered on the bottom layer. The crystal is a SMD-one, so it is also soldered on the bottom layer. So, in the end, there is a ground plane between the IC and the crystal.
How to do it better then?
Hi,
I've got a question about the attached picture: Is this good PCB layout?
Some more infos: A two layer board is used. The top layer is a ground plane, routing is made on the bottom layer. A through-hole-IC is placed on the top layer. Between the IC's pins on the bottom layer, there is a...
Re: Why do we use microstrip filter instead of simple LC fil
Yep, this is right - if you're building a LC filter for very high frequencies you're also building an antenna at the same time. Also inductors and capacitors have bigger losses and at high frequencies, an L can become a C and vice...
mesure index de modulation ask
Thanks alot for your reply,
I should have mentioned those 15% beforehand, sorry for not doing that!
I'm just seeing bits and bytes currently, so I just forgot that part.
If I have 8 samples per bit, as I'm doing it currently, that would make...
for 1*T (with...
pic ask demodulation
What do you mean by "the modulation should be decoded according to the used standard"?
The signal is more or less a filtered (lowpass + highpass) ASK-signal (which uses FM0 code as specified in the UHF-RFID-standard DIN 18000-6b btw, if that's of interest). It just uses...
pll to decode ask signal
Hi,
I've got a amplitude modulated signal which comes from a RFID transponder, which after doing some filtering looks similar to the one on the attached picture. This signal is sampled with the help of an analog/digital converter (sample frequency 80kHz) and for...
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