Homework Help
Created on: December 4th, 2007
Homework Help
Homework Help! FAP Jesus Digital Logic

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December 4th, 2007
(1)
BRIGEN SIE MIR FEGELEIN
December 4th, 2007
(1)
The answer to all of the above questions is seven.
December 4th, 2007
(0)
hahahahahaa
December 4th, 2007
(1)
Well, it's nice that you posted this, I'm having a final on magnetics this week yet I still have no idea 60% of the question meant.
December 4th, 2007
(1)
4. Since 16 is 1000 in binary, the answer is four. 10. Yuor gain is just output voltage over input, so 2 / 0.010 = 200 is your gain... Lemme ask you: last year of high school or first year of University? Either way, don't take engineering - the girls are ugly and good luck explaining to people exactly what it is you do for a living - again, expecially to women. Do yourself a favor and go to law/med school.
December 4th, 2007
(0)
dude you are the man seriously. i'm in college, but not for this sh*t... i'm graduating in network security, for some reason i had to take this sh*t.
December 4th, 2007
(1)
im in network security and i have to hold counts into shift registers all the time. stateful firewalls especially, and intrusion normal patterns use this stuff even more. wait until you get into ac current and access controls
December 4th, 2007
(0)
how about this one? For a certain 2-bit successive-approximation ADC, the maximum ladder output is +8 V. If a constant +6 V is applied to the analog input, determine the sequence of binary states for the SAR.
December 4th, 2007
(0)
Since network adaptors have both digital/analog circuitry, they probably want u to know how it works - basically, they want you to know which tube dumped all that stuff on that big truck. And remember, the internet is not something you just dump something on - it's not a big truck. It's...
December 4th, 2007
(1)
On to your question... (Never did ADCs in detail, I'll try to figure it out)
December 4th, 2007
(0)
thanks!
December 4th, 2007
(1)
OK, here's what I think the answer is (double check)... Successive approximation ADC's approximate the input signal by going through a binary search of starting from the max value / 2, called a reference. If the input is greater than the reference, then the first bit of the approximation is 1, otherwise zero and the input is now in a reference range between max and max /2 or max /2 and zero. The process is then repeated with the reference now being the range's max value /2. So, in your case (cont.)
December 4th, 2007
(1)
6 is greater than 8/2 (i.e. 4), so your reference range is now 4 to 8 and your first bit is 1. Now your reference is the midpoint between 4 and 8 (i.e. 6); since 6 = 6 (duh), the next bit is 1 (since 6 is not less than 6). so the approx sequence is 00, 10, 11. That's the best I can do.
December 4th, 2007
(0)
Fantastic! This looks great. It actually makes sense to me which is a miracle... Thank you so much. You should be a professor.
December 4th, 2007
(0)
This is the last topic I am fuzzy on... Is it possible to make an asynchronous shift register? Explain. Is it possible to make a synchronous shift register? Explain. Look at a shift-register circuit and look at any counter circuit. What one unique thing about the wiring distinguishes a shift register from any type of counter?
December 4th, 2007
(0)
Asynchronous one can't exist on it's own, since it can't detect when the next bit is available at input. For example, how would it know when to shift successive 0's (i.e. how would it know how many 0's are in the input data without some signal?)? Synch CAN exist, the timer would trigger the shifting of the bit currently at the input to the next flip-flop. I'd say the biggest difference between the shift register and, say, a ring counter is that the output of the flip-flop with the MSB is connected to (cont)
December 4th, 2007
(0)
The flip-flop with the LSB (Least Significant Bit, MSB was "Most Significant Bit"). Now think about what are the odds that u'd post these kinds of questions on ytmnd and have the right pair of eyes look over them and answer?
December 4th, 2007
(0)
I would pay you if I could. This was fantastic... better than my damn 78 year old professor... I originally posted this as a joke, thinking no one would even attempt to answer. You are a damn life saver. Cheers mate ( I fived your sites)
December 4th, 2007
(0)
I'm Jesus, lol
December 4th, 2007
(0)
I knew it was a sign from above... I prayed about this for so long. Thank you and God bless.