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Manufacturer recommends using the following LDO to power its module - LT1764AEQ. But this part is rather expensive. I am looking for a cheaper alternative. The main requirements are:
- Low dropout (5Vin, 4.2Vout)
- 1A max avg load, 2.5A bursts (hence fast response to load transients is...
FvM, from your answer it looks like an easy job to do, but when I look into SEPIC related literature it is quite complex. I even found one documents where authors admit that: "Unfortunately, the SEPIC topology is difficult to understand".
Could you help me choosing those components you have listed?
shaiko, I have looked at DigiKey before asking. It does not provide a column for Watts. I looked though several datasheets, but they specify mA, not mW. For example: https://ww1.microchip.com/downloads/en/DeviceDoc/22147a.pdf
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FvM, I was considering using two DC-DC...
I am looking for a simple solution how to get 1V, 3V, 5V, 7V, 9V, 11V, 13V, 15V and 17V outputs supplying 5V. The idea is to use a microcontroller which would switch between these ranges. Max current will be only 40mA. There is no need in great accuracy - it could be 0.5 or 1.5V when 1V is...
volker@muehlhaus, I see. Can you recommend any software that I could use as EM solver? Is it a difficult procedure to test a layout?
I have used AppCAD to verify that 40 mil (width) and 8 mil (gap) numbers are correct. Are those calculations relevant only for the straight trace? If I decide to...
Yes it is. Ground is just a solid plane on top layer and bottom layer (I will be using 2 layer board).
~2.4Ghz. With regards to impedance accuracy, I am aiming for the best I can get in my situation (2 layer board, trace length - 16 mm)
It does not look right for me as well.
I am trying to draw an impedance (50 Ohm) controlled trace. I am going to use coplanar waveguide. I have read that chamfering is the recommended method for bends.
I have calculated that I need to use 40 mil wide trace and I need to leave gaps of 8 mil. I have also calculated M (percentage...
Datasheet of the second antenna has this graph. Based on it, it would be hard to expect VSWR to be less than 2 within that broad range (868 – 928 MHz).
I am looking for omnidirectional 868 MHz antenna that comes with tilt option and has reverse SMA connector. It seems there are only two options to choose from: W1063 and ANT-868-CW-HWR-RPS.
The first is made by well-respected manufacturer, but it seems to be designed to be primarily used with...
"Gain is commonly misinterpreted as an increase in output power above unity. Of course, this is impossible since the radiated power would be greater than the original power introduced to the antenna."
As I understand, high gain is not that relevant to omnidirectional antenna.
I am looking for omnidirectional long-range BT antenna. I have done a parametric search on DK and now I have 37 antennas to choose from. Could anyone advice which one to pick and why...
Dan Mills, yes, I have misread your question. Thanks for your advises, I will take them into account.
SunnySkyguy, I think you have calculated it wrongly. I was talking about 50 centimeters, not meters, that's in two orders of magnitude less.
I don't understand why do they call PE-C600...
I was expecting to get that cable assembled for under $100. Not sure if that is enough though.
I am facing two issues:
1. I cannot find RP-SMA right angle male solderable connector from well known company. It seems I can only get it from eBay/China, but quality of those is very questionable.
2...
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