Please advise: SM5843 and 24-bit data

Tony_T · 09:19 PM

Hello,
I'm sorry if this is an silly question, but what would an SM5843 digital filter do if
fed with 24-bit data? Would it just disregard higher (>20) bits or wouldn't it work at all?
Yes I have read the datasheet and done the "Googling" but I haven't really found
anything conclusive. Then again - I'm really not an expert on digital audio.
Any help is greatly appreciated.
Attached is link to SM5843 datasheet
http://www.semiconductorstore.com/pdf/sm5843.pdf

Edit: And here I go and grab the first icon that seems inviting. Next time I will try harder. Corrected way to present an link to datasheet:

http: www semiconductorstore com pdf sm5843 pdf

chaparK · 30th June 2012, 03:18 AM

Have a look at figure 8 or figure 9 on p.19: they comment that data after bit 20 is ignored. So it seems you can feed 24-bit data if truncation is not an issue for you.

Tony_T · 2nd July 2012, 04:20 AM

Thank you. Seems that It's worth a try.

29th June 2012, 08:42 PM	#1
Tony_T diyAudio Member Join Date: Jun 2004 Location: Tallinn	Please advise: SM5843 and 24-bit data Hello, I'm sorry if this is an silly question, but what would an SM5843 digital filter do if fed with 24-bit data? Would it just disregard higher (>20) bits or wouldn't it work at all? Yes I have read the datasheet and done the "Googling" but I haven't really found anything conclusive. Then again - I'm really not an expert on digital audio. Any help is greatly appreciated. Attached is link to SM5843 datasheet http://www.semiconductorstore.com/pdf/sm5843.pdf Edit: And here I go and grab the first icon that seems inviting. Next time I will try harder. Corrected way to present an link to datasheet: http: www semiconductorstore com pdf sm5843 pdf Last edited by Tony_T; 29th June 2012 at 09:19 PM. Reason: Fixed link to datasheet

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30th June 2012, 03:18 AM	#2
chaparK diyAudio Member Join Date: Apr 2010 Location: Luxembourg	Have a look at figure 8 or figure 9 on p.19: they comment that data after bit 20 is ignored. So it seems you can feed 24-bit data if truncation is not an issue for you.

2nd July 2012, 04:20 AM	#3
Tony_T diyAudio Member Join Date: Jun 2004 Location: Tallinn	Thank you. Seems that It's worth a try.