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I tried searching for this topic in various forums, but haven't yet found a straight forward answer. For LEDs, there are two ways of expressing their colour - by specifying the dominant wavelength, and by providing the x-y chromaticity coordinates of the output. My question is, how do we convert...
ESD diodes on LDO pins
Hello
I have a query regarding ESD protection at LDO pins. An LDO that is being used in my circuit is rated at 4kV HBM contact discharge, but no mention about air discharge rating. The customer now requires 6kV contact discharge and 8kV air discharge protection. I have...
Like i mentioned earlier, my intention is to use PCB traces in place of a 50 ohm RF cable that is generally used in these kind of applications - RF chip on one board, and the antenna coil positioned at another place. Therefore, i am using a balun transformer to convert ~200ohms impedance as seen...
We already have a matching circuit and balun at the driver side, and it's the signal coming out of the balun that's being fed via the switch IC to these 6 antennas. FYI, each of the 6 antennas are to be identical, hence each one has a matching network comprising a couple of capacitors in...
Could you explain a bit more on that? Would greatly appreciate it if you could provide some means of calculating the gap/width requirements.
You are spot on, on the last sentence. Yes, it's an inductive coupler that we are designing, and not a real antenna.
Individual antennas do interact...
Two traces = one signal and one return -> here it is quasi differential.
A ground 'plane' is out of question, as the RF radiated by the antenna coil would get absorbed by the ground plane itself. So, how do we maintain a 50ohms impedance as seen by the chip?
I hope I made it clear that we...
Hi everyone... Since I'm also working on the same project, I'll explain a bit more on the requirement... We have an RF transceiver chip that sends out RF signals. This will be routed to an RF Switch IC (HRF-SW1030), where it's switched between 6 channels. Each of the 6 channels is connected to...
how to interface dallas ds12887a
I'm working on a project that uses the Dallas-Maxim RTC DS12887A to keep time and alarms, plus save some user data, using a Microchip PIC16F877A (@20MHz) for a programmable alarm-clock for using at colleges and offices. I'm finding difficulty in writing assembly...
Is there any freely downloadable e-books or documentation for reference on Finite Wordlength effects in FIR filter design? I'm a newbie to this field, and in search of some basic tutorials to pick up momentum. Please help
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