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???
12/09/10 06:13
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#180015 - maybe not
Responding to: ???'s previous message
I don't disagree with what you say, Per.

I just find it entirely too easy for the advertisers to grab easy-to-quantify handles on the product, such as resolution of the converters, rather than to go into detail in their advertising. After all, as you've pointed out, the dynamic range of which the converters are theoretically capable isn't that important, nor is it that likely that the product in question provides them. 16-bit resolution is difficult enough to attain, regardless of the converter resolution. I don't know what happens to the extra 8 bits, but the end result, if it's actually 16 bits, is quite an achievement.

What I believe drives the interest in the resolution is not so much the interest in doing what you have described, but simply the interest in numbers that are easily claimed. It's amply difficult to prove that claims made by sound-card makers aren't being met. The marketers are safe.

RE




List of 34 messages in thread
TopicAuthorDate
ADC to interface with 8051            01/01/70 00:00      
   Interfacing is the least of your problems!            01/01/70 00:00      
      16bit interface ADC to 8051            01/01/70 00:00      
         presicion engineering            01/01/70 00:00      
            Responding to Andy Neil mechanical part            01/01/70 00:00      
         dead easy, but            01/01/70 00:00      
   Many options            01/01/70 00:00      
      also            01/01/70 00:00      
      Responding to Oliver Sedlacek            01/01/70 00:00      
         Cart before horse?            01/01/70 00:00      
            Responding to Andy Neil            01/01/70 00:00      
               UH OH            01/01/70 00:00      
   "the"?            01/01/70 00:00      
      Responding to Erik Malund            01/01/70 00:00      
         Teachers doesn't always hint at the easiest solution            01/01/70 00:00      
            and some are lazy            01/01/70 00:00      
         Not a useful skill to learn            01/01/70 00:00      
            educational value?            01/01/70 00:00      
               8255 has an excellent datasheet            01/01/70 00:00      
                  Oh, please!            01/01/70 00:00      
   This will require very precise components and great skill            01/01/70 00:00      
      Audio don't require good voltage reference            01/01/70 00:00      
         Yes, but it's not cheap            01/01/70 00:00      
            They normally specify an SN figure instead            01/01/70 00:00      
               Marketing "specification" rather than engineering            01/01/70 00:00      
                  Still looking at wrong parameter            01/01/70 00:00      
                     maybe not            01/01/70 00:00      
                        Actually big need - audio sources, mixer etc are 24-bit            01/01/70 00:00      
                           drifting            01/01/70 00:00      
            no problem            01/01/70 00:00      
               Weeks??            01/01/70 00:00      
                  Depends            01/01/70 00:00      
         audio and voltage references            01/01/70 00:00      
   ADC to interface with 8051            01/01/70 00:00      

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