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Finding delay and error in visible light communication
himel1842 wrote: Now for performance analysis I need to find roundtrip delay and also successfully received characters(error rate). Read the assignment questions carefully. For...
Tuesday, 9 July 2013 - 01:07
LDO Outputs
Check the data sheets, and then verify current flows, with a meter. (include a test of adding external power, when selected for a different choice ) How important is current...
Monday, 8 July 2013 - 20:45
Advice me a PCB CAD software
justinjohney wrote:... i have faced footprint library problem. If you gave more details of what sort of footprint library problem you have, you might get better advice.
Saturday, 6 July 2013 - 23:06
Best way for frequency approach.
richardbrian.23 wrote:Hi, I am working on a frequency measurement project.I can think of two options for the frequency measurements. 1. Use a schmit trigger generate a square wave...
Saturday, 6 July 2013 - 21:49
AVR ADC analog bandwith?
smaslan wrote: And about those spikes in a signal: I'm pretty sure about this. I tried to generate pulse on GPIO with the ADC trigger, I synced the DSO to that and the spike was...
Saturday, 6 July 2013 - 01:02
AVR ADC analog bandwith?
smaslan wrote:Hello again, in case someone is interested I finally made the measurement based on square wave spectrum comparison with DSO. For AVR at 10MHz, ADC clock /64, Vref=1....
Friday, 5 July 2013 - 07:40
SPI clock always running...how to do that?
msd wrote: It requires enable pulse (Conv) to be applied during clock is present. So I wonder when I give pulse to Conv. pin, clock would be there or not. Looking at Figure 13,...
Wednesday, 3 July 2013 - 07:59
ARM MCU (SAMD20)
alexru wrote:There are many definitions, since line is very blurred sometimes. I use one where CISC can directly operate on memory and RISC operates on registers and the only...
Sunday, 30 June 2013 - 22:52
Very fast zener diode
ComputerGeek wrote:I need to protect 1 pin from anything over 3.3v I want it to be compatible with both a 5v and 3.3v inpt. The input is a clock input that can range from 6mhz to...
Thursday, 27 June 2013 - 01:49
Voltage regulator using zener
For those looking at regulator variants, there is a new device from onSemi NCP4328 This is like a smarter TL431, and has a similar opto-feedback used. However, it has 2 precision...
Saturday, 22 June 2013 - 02:07
Voltage regulator using zener
brunomusw wrote: Does you think Zener is an option if the current doesn't vary a lot? But comparing the Zener prices it is unbeatable, right? Price is only slightly below a TL431...
Wednesday, 19 June 2013 - 06:24
Voltage regulator using zener
As mentioned, Zeners are not great : Soft knee @ 3.3V, and only give that at a specific test current, usually some mA. However, shunt regulators do have some appeal, especially in...
Tuesday, 18 June 2013 - 21:30

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