The decoder tag has no wiki summary.
1
vote
3answers
89 views
Pin Arrangement which one should i follow?
I have 2 different arrangement of 7448 IC's pins, and I'm not sure which one I should follow. The two different pin arrangements I found for the IC are:
...
1
vote
1answer
62 views
Finding the no. of decoders required in cascading
I am trying to solve the following question.
How many 3 to 8 decoders with an enable input are needed to construct
a 6 to 64 line decoder without using any other logic gate.
I have a Digital ...
-3
votes
0answers
34 views
Build 3To8 decoder using at least 1 of each: 1To2 decoder, 2To4 decoder, 4To16 decoder
Build 3To8 decoder using at least 1 of each: 1To2 decoder, 2To4 decoder, 4To16 decoder.
I think it's pretty clear.
I have managed to make one without the 4To16:
2To4, each output goes to a ...
-4
votes
1answer
306 views
Design a 4:1 MUX by three 2:1 MUX or by 2:4 decoder? [closed]
A 4:1 MUX can be built by using three 2:1 MUX. But I've not done it this way: I've used a 2:4 decoder to make a 4:1 MUX. Does it matter?
3
votes
3answers
95 views
How can I store audio files in the uC ROM so as to serially transmit it to a decoder chip?
I am using an NXP micro controller (P89V51RD2) with on board flash of 64kB. I want to interface it with an audio decoder IC, probably VS1011 (if I can get the IC). What should I do to use on board ROM ...
4
votes
1answer
112 views
How large is the address decoder to select an address in RAM? Is the address decoder just a bunch of multiplexers?
I have recently started building simple computing devices using logic gates inside of Minecraft. What I'm trying to build right now is some RAM, and an address decoder for this RAM. I want to build a ...
0
votes
0answers
81 views
.bdf in Quartus changes between Altera DE2 and DE2-115?
Having looked at the files I assume I must change the pins for an Altera DE2 mux but not for an Altera DE2 decoder so I'm asking whether to make an completely new project for DE2-115 or copy or export ...
1
vote
0answers
163 views
Forward Error Correction code, Reed Solomon, Turbo Code, Low-density parity-check
I am new to FEC (Forward Error Correction). Pointers highly appreciated.
I am experimenting software with configurable "error protections". Result improving as setting raise to 40%. Still not ...
0
votes
2answers
2k views
How to build a 4 to 16 decoder using ONLY TWO 2 to 4 decoders?
Help please, I am new to circuits and decoders and I need some serious help.
How to build a 4x16 decoder using ONLY two 2x4 decoders?
Following the steps we took in the lecture, we are supposed to ...
2
votes
1answer
261 views
DVI-D Single Link to FPGA
I'm using LatticeXP2 family FPGA. DVI-D Single link operating at 720p is connected to FPGA. I somehow need to read RGB and XY coordinates of pixels. I know I need TMDS decoder, but I'm not sure how to ...
1
vote
1answer
202 views
IN-12A Nixie Tubes and K155ID1 (74141 clone) Power
I'm working on a design with some Nixie tubes (a clock, specifically to start, but I'm gonna have a ton left over for other things), and due to the rather expensive nature of the K155ID1/74141 ICs, ...
1
vote
2answers
1k views
Implementing 4-to-16 decoder using 3-to-8 and 2-to-4
This is digital logic question. I think it's alright to post it here.
I'm trying to implement a 4 to 16 decoder using 2 to 4 decoder and 3 to 8 decoder.
What I did, I used 2x of 2-to-4 decoder and ...
1
vote
2answers
294 views
Manchester Decoding
Is a Phase Locked Loop compulsory for decoding Manchester encoded data? Is the PLL used so that Manchester encoding supports different data rates?
useful links:
...
2
votes
4answers
512 views
How to decode morse code with digital logic
I have been curious as to how one might implement a morse code decoder with basic digital logic (no microcontroller), mostly as an exercise. I could decode individual letters with a state machine, if ...
2
votes
1answer
144 views
An IC that would combine a counter and a decoder
I have a circuit that makes uses of a decoder to command the latch line of 8 latches.
To avoid spurious latching that could occur in transitions, I disable the decoder output while I change the input ...
