Correct LED For DAC Audio

ShockChance
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Correct LED For DAC Audio

Unread post by ShockChance »

I keep ordering the wrong led light for the audio on the io board
Anyone know where I can source in Europe. mouser, rs-online, digi key etc.

My last attempt was this led https://www.mouser.ie/ProductDetail/Lum ... uRagy8aQ==

what should i be looking for. Luminous Intensity?
connected with 200 ohm resistor
Xbytez
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Re: Correct LED For DAC Audio

Unread post by Xbytez »

See this thread and post here for details on the LED specification:

viewtopic.php?p=3036#p3036
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Nat
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Re: Correct LED For DAC Audio

Unread post by Nat »

ShockChance wrote: Wed Nov 25, 2020 2:58 pm I keep ordering the wrong led light for the audio on the io board
Anyone know where I can source in Europe. mouser, rs-online, digi key etc.
If you send me a message via my website with your address, I am happy to send you a few in the post free of charge.
MiSTer FPGA Add-On Boards : UK based, low cost worldwide shipping.
https://MiSTerFPGA.co.uk/
ShockChance
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Re: Correct LED For DAC Audio

Unread post by ShockChance »

Thanks for the advice guys. I might take you up on that offer Nat.
For anyone thats in the same boat I found this in the other thread

The TOSLink LED should be from memory 650nM wavelength which looking at your spec sheet is correct however the brightness should be 800mcd
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legacypixels
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Re: Correct LED For DAC Audio

Unread post by legacypixels »

800mcd seems way, way too bright.

The LED listed on the wiki (version 5.5 of the I/O board) is 6.6 mcd @ 20 mA.
The LED I currently use on 6.1 boards is 80 mcd @ 20 mA, and works wonderfully.
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Nat
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Re: Correct LED For DAC Audio

Unread post by Nat »

legacypixels wrote: Thu Nov 26, 2020 8:39 pm 800mcd seems way, way too bright.
You are indeed correct, a typo on my part it should have been 80mcd I have corrected my original post.
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