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yes,
you know microcontroller can be used to control the LEDs to give us red, green, blue light etc..
There are a lot of information on the internet after 2000. my question is when this control meathod came up? for sure it must be before 2000. But how can i find some information in...
question for microcontroller
Hey friends,
Do someone know when microcontroller was used for LED?
it started from 1997? or even more earlier?
I can not find any information since it's too old.
Please help me!!! Looking forward:)
Cheers,
Kaitlyn
Hallo friends,
Please give me some reference circuits of UVLO.
i just know it should be a comparator using voltage divider to make the volatge whatever you want . and then we need to compare this value with reference.
But what's the supply voltage for the comparator? if i need the 24V, 2.5V...
for the measured result of this chip,
L1 band with chip NF 8.5dB,
Chip maximum gain 95dB,
AGC range >70dB,
image reject ratio 20dB in L1 band,
average phase noise -80dBc/Hz in-band,
filter bandwidth 2 MHz, 6-th order butterworth BPF
ADC 2-bit
that's what i know so far, feel free to give me...
Thanks a lot!!! very helpful. i think i will try to find the best specifications for the single conversion, the dual conversion or Zero IF architecture. then i can define my own reasonable specification.
here is my reference receiver for dual conversion: 19-mW 2.6mm2 with 8.5dB noise...
hey guys,
Can you give me some idea about the GPS receiver architecture.
1, which one is most popular architecture in present research?
2, Which one is the commercial choice for the GPS receiver?
even through i read a lot of paper, i still can not get a conclusion.
please give me some clue...
Re: how to cacualte the 2nd or 3rd order nonlinear coefficen
Sorry, I don't understand what do you mean.
please say it in a easy way, you know, I'm really a new guy.
Thanks a lot!!!
Here is a problem about the common mode stablity of my PA,(my PA has differential input)
When I do the simulation the differential mode is unconditional stable, but the common mode is unstable all the time.
How can i get rid of this problem???
HELP PLEASE!!!
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