Diy Adc

Khron · 15th July 2005, 02:11 PM

Greetings..

Forum newbie here..

One question (for now). Does anyone have some schematics or indications for building a DIY line-to-SPDIF ADC?

Khron · 16th July 2005, 10:39 AM

Bump..

The thng i'd need this ADC for is to turn an analog signal into an S/PDIF-compatible signal, in case my LineIn is taken up..

maneco · 16th July 2005, 03:42 PM

http://www.electricstart.de/site/atospdif.htm

http://www.beis.de/Elektronik/ADDA2496/ADDA2496.html

Khron · 17th July 2005, 09:48 AM

The 1st link has a PCB but no component list or schematic, and the 2nd has the schematic, but no PCB

MarkHathaway · 17th July 2005, 10:47 AM

The adc chip vendors (all vendors actually, not just adc ones) will sell you an evaluation board, aka "reference design" intended for a budding engineer to copy, "copy this and it WILL work" note the boards need a power supply, hopefully a power supply is not too much of a stretch for you.

For easy of simplicity, a crystal semiconductors evaluation board would be a good choice.

The eval board for the cs5361, part number cdb5361 would fit your requirements. Note this is a 24/192khz capable chip, it can be forced to lower sample rates. There are also better performing chips, and lesser chips in the crystal semi conductors range.

data sheet for the eval board: http://www.cirrus.com/en/pubs/rdData...cs5361eb-4.pdf

I've waded through the crystal site and found your local crystal distributor, http://www.cirrus.com/en/contacts/sales/country/RO.html if the distributor ask why you want the board, "i want to make an adc" don't mention you are wanting to make a cheap adc for personal use. They want to see sales potential.

Khron · 17th July 2005, 11:30 AM

Thanks a lot, the effort's appreciated

But they only seem to have a franchise all the way over in Poland (a couple thousand miles north..)

Guess i'll have to keep searching / hoping..

MarkHathaway · 17th July 2005, 11:41 AM

I'm sure you can find someone in the USA willing to buy one for you from thier local crystal distributor and ship to you. Sadly here in Australia the distributor charges a fortune for eval boards or I could help you.

Mark

Khron · 17th July 2005, 11:45 AM

Thanks for the idea and the intention anyway.. It's the thought that counts

15th July 2005, 02:11 PM	#1
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	Diy Adc Greetings.. Forum newbie here.. One question (for now). Does anyone have some schematics or indications for building a DIY line-to-SPDIF ADC?

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16th July 2005, 10:39 AM	#2
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	Bump.. The thng i'd need this ADC for is to turn an analog signal into an S/PDIF-compatible signal, in case my LineIn is taken up..

16th July 2005, 03:42 PM	#3
maneco diyAudio Member Join Date: Jun 2005 Location: Montevideo	http://www.electricstart.de/site/atospdif.htm http://www.beis.de/Elektronik/ADDA2496/ADDA2496.html

17th July 2005, 09:48 AM	#4
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	The 1st link has a PCB but no component list or schematic, and the 2nd has the schematic, but no PCB

17th July 2005, 10:47 AM	#5
MarkHathaway diyAudio Member Join Date: Jun 2005 Location: melbourne, australia	The adc chip vendors (all vendors actually, not just adc ones) will sell you an evaluation board, aka "reference design" intended for a budding engineer to copy, "copy this and it WILL work" note the boards need a power supply, hopefully a power supply is not too much of a stretch for you. For easy of simplicity, a crystal semiconductors evaluation board would be a good choice. The eval board for the cs5361, part number cdb5361 would fit your requirements. Note this is a 24/192khz capable chip, it can be forced to lower sample rates. There are also better performing chips, and lesser chips in the crystal semi conductors range. data sheet for the eval board: http://www.cirrus.com/en/pubs/rdData...cs5361eb-4.pdf I've waded through the crystal site and found your local crystal distributor, http://www.cirrus.com/en/contacts/sales/country/RO.html if the distributor ask why you want the board, "i want to make an adc" don't mention you are wanting to make a cheap adc for personal use. They want to see sales potential.

17th July 2005, 11:30 AM	#6
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	Thanks a lot, the effort's appreciated But they only seem to have a franchise all the way over in Poland (a couple thousand miles north..) Guess i'll have to keep searching / hoping..

17th July 2005, 11:41 AM	#7
MarkHathaway diyAudio Member Join Date: Jun 2005 Location: melbourne, australia	I'm sure you can find someone in the USA willing to buy one for you from thier local crystal distributor and ship to you. Sadly here in Australia the distributor charges a fortune for eval boards or I could help you. Mark

17th July 2005, 11:45 AM	#8
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	Thanks for the idea and the intention anyway.. It's the thought that counts

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