All Questions
Tagged with optoelectronics digital-logic
6 questions
1
vote
1
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147
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How to share a digital signal between circuits?
Please see this :
The Task
I'm trying to create a single module which can safely share a single digital signal.
The idea is that each (identical) module can monitor the status of the signal, and can ...
- 309
1
vote
3
answers
630
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LED Matrix Leakage LEDs
I'm doing a LED matrix design and it's a cathode row design. Attached is a picture of my matrix design.
The design works ok and I can show any pattern in the matrix.
The problem is when a leak LED ...
- 93
0
votes
2
answers
1k
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LOGIC GATES and logic circuits in a calculator
i am tasked to do a circuit using logic gates regarding the work of a calculator. it is said that how can we make number 3 shown in a calculator represented by logic gates. can someone help me?
i ...
- 11
24
votes
3
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5k
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How does a 40 Gbit/s Ethernet interface process packets in silicon?
A 40 Gbit/s Ethernet interface should have a 40 GHz signal on it. How does common silicon IC technology handle such an exotic beast?
My best guess is that internally various parallel busses are used, ...
- 358
1
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1
answer
2k
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What bandwidth is needed for an arbitrary digital signal?
I am building a fiber-optic data link, with a laser driver and photodiode receiver. My goal is to transmit data at 50Mbit/s. I'm looking for what bandwidth this would take.
Obviously 50MHz would not ...
- 780
0
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2
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2k
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How to wire up optocoupler for digitally controlled UV (under voltage) input protection?
What I am trying to build is an under voltage input protection.
It will always limit the voltage flowing into the output end to the microcontroller to be 3.3V, but when the input goes below 380V, it ...
