Audio Conversion With ADS1243












2












$begingroup$


How can I use the TI ADS1243 8-channel ADC to convert a line-level audio signal (ideally balanced) to a digital 24-bit (as stated on data-sheet) stream.






audio texas-instruments







share|improve this question









$endgroup$

















    2












    $begingroup$


    How can I use the TI ADS1243 8-channel ADC to convert a line-level audio signal (ideally balanced) to a digital 24-bit (as stated on data-sheet) stream.






    audio texas-instruments







    share|improve this question









    $endgroup$















      2












      2








      2


      0



      $begingroup$


      How can I use the TI ADS1243 8-channel ADC to convert a line-level audio signal (ideally balanced) to a digital 24-bit (as stated on data-sheet) stream.






      audio texas-instruments







      share|improve this question









      $endgroup$




      How can I use the TI ADS1243 8-channel ADC to convert a line-level audio signal (ideally balanced) to a digital 24-bit (as stated on data-sheet) stream.






      audio texas-instruments




      audio texas-instruments






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 7 hours ago









      James ConwayJames Conway

      1247




      1247






















          4 Answers
          4






          active

          oldest

          votes


















          4












          $begingroup$

          You can't. The datasheet is surprisingly vague on this point, but this is a low-speed ADC, intended for instrumentation applications. The analog bandwidth is just a few tens of Hz at most.






          share|improve this answer











          $endgroup$





















            3












            $begingroup$

            You don't.



            The ADS1243 datasheet gives an analog bandwidth of maximum 14.6 Hz.



            That's well below what anyone would normally call audio.



            The ADS1243 is intended for high resolution sampling of slow changing measurements - the datasheet mentions weight scales and blood analysis as intended uses.



            Certainly nothing about using it in a stereo system.



            There are multichannel 24 bit audio codecs out there. The ADS1243 isn't one of them, though.






            share|improve this answer









            $endgroup$













            • $begingroup$
              Do you know of any "multichannel 24 bit audio codecs"
              $endgroup$
              – James Conway
              6 hours ago






            • 1




              $begingroup$
              Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
              $endgroup$
              – JRE
              6 hours ago






            • 1




              $begingroup$
              Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
              $endgroup$
              – JRE
              6 hours ago










            • $begingroup$
              Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
              $endgroup$
              – James Conway
              6 hours ago



















            2












            $begingroup$

            From the datasheet




            When a 2.4576MHz crystal is used, the device can be programmed for an output data rate of 15Hz, 7.5Hz, or 3.75Hz. Under these conditions, the digital filter rejects both 50Hz and 60Hz interference.




            With a maximum datarate of 15Hz, I think you can kiss audio goodbye






            share|improve this answer









            $endgroup$













            • $begingroup$
              Perfect for recordings of whalesong.
              $endgroup$
              – Hearth
              3 hours ago



















            2












            $begingroup$

            The ADS1234 is a part designed for use in low bandwidth high resolution sensor sampling applications. In particular bridge style sensors are supported where gain is applied to the sensor reading and even 50/60 Hz filtering is performed. It indicates right in the "Features" section of the data sheet that signal sample rates of 10 or 80 samples per second are supported.



            enter image description here



            Audio sampling on the other hand is done at much higher rates. High performance audio sampling for CD is typically done at 44.1kHz and DVD at 48kHz. So as you can see, this device is not at all suitable for what you intend.






            share|improve this answer









            $endgroup$









            • 1




              $begingroup$
              Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
              $endgroup$
              – Hearth
              3 hours ago










            • $begingroup$
              @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
              $endgroup$
              – Michael Karas
              1 hour ago










            • $begingroup$
              Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
              $endgroup$
              – Hearth
              24 mins ago












            • $begingroup$
              Well my technique does not require me to do tedious manual erase of the text.
              $endgroup$
              – Michael Karas
              48 secs ago












            Your Answer





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            4 Answers
            4






            active

            oldest

            votes








            4 Answers
            4






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            4












            $begingroup$

            You can't. The datasheet is surprisingly vague on this point, but this is a low-speed ADC, intended for instrumentation applications. The analog bandwidth is just a few tens of Hz at most.






            share|improve this answer











            $endgroup$


















              4












              $begingroup$

              You can't. The datasheet is surprisingly vague on this point, but this is a low-speed ADC, intended for instrumentation applications. The analog bandwidth is just a few tens of Hz at most.






              share|improve this answer











              $endgroup$
















                4












                4








                4





                $begingroup$

                You can't. The datasheet is surprisingly vague on this point, but this is a low-speed ADC, intended for instrumentation applications. The analog bandwidth is just a few tens of Hz at most.






                share|improve this answer











                $endgroup$



                You can't. The datasheet is surprisingly vague on this point, but this is a low-speed ADC, intended for instrumentation applications. The analog bandwidth is just a few tens of Hz at most.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited 5 hours ago

























                answered 6 hours ago









                Dave Tweed♦Dave Tweed

                123k9152265




                123k9152265

























                    3












                    $begingroup$

                    You don't.



                    The ADS1243 datasheet gives an analog bandwidth of maximum 14.6 Hz.



                    That's well below what anyone would normally call audio.



                    The ADS1243 is intended for high resolution sampling of slow changing measurements - the datasheet mentions weight scales and blood analysis as intended uses.



                    Certainly nothing about using it in a stereo system.



                    There are multichannel 24 bit audio codecs out there. The ADS1243 isn't one of them, though.






                    share|improve this answer









                    $endgroup$













                    • $begingroup$
                      Do you know of any "multichannel 24 bit audio codecs"
                      $endgroup$
                      – James Conway
                      6 hours ago






                    • 1




                      $begingroup$
                      Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
                      $endgroup$
                      – JRE
                      6 hours ago






                    • 1




                      $begingroup$
                      Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
                      $endgroup$
                      – JRE
                      6 hours ago










                    • $begingroup$
                      Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
                      $endgroup$
                      – James Conway
                      6 hours ago
















                    3












                    $begingroup$

                    You don't.



                    The ADS1243 datasheet gives an analog bandwidth of maximum 14.6 Hz.



                    That's well below what anyone would normally call audio.



                    The ADS1243 is intended for high resolution sampling of slow changing measurements - the datasheet mentions weight scales and blood analysis as intended uses.



                    Certainly nothing about using it in a stereo system.



                    There are multichannel 24 bit audio codecs out there. The ADS1243 isn't one of them, though.






                    share|improve this answer









                    $endgroup$













                    • $begingroup$
                      Do you know of any "multichannel 24 bit audio codecs"
                      $endgroup$
                      – James Conway
                      6 hours ago






                    • 1




                      $begingroup$
                      Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
                      $endgroup$
                      – JRE
                      6 hours ago






                    • 1




                      $begingroup$
                      Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
                      $endgroup$
                      – JRE
                      6 hours ago










                    • $begingroup$
                      Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
                      $endgroup$
                      – James Conway
                      6 hours ago














                    3












                    3








                    3





                    $begingroup$

                    You don't.



                    The ADS1243 datasheet gives an analog bandwidth of maximum 14.6 Hz.



                    That's well below what anyone would normally call audio.



                    The ADS1243 is intended for high resolution sampling of slow changing measurements - the datasheet mentions weight scales and blood analysis as intended uses.



                    Certainly nothing about using it in a stereo system.



                    There are multichannel 24 bit audio codecs out there. The ADS1243 isn't one of them, though.






                    share|improve this answer









                    $endgroup$



                    You don't.



                    The ADS1243 datasheet gives an analog bandwidth of maximum 14.6 Hz.



                    That's well below what anyone would normally call audio.



                    The ADS1243 is intended for high resolution sampling of slow changing measurements - the datasheet mentions weight scales and blood analysis as intended uses.



                    Certainly nothing about using it in a stereo system.



                    There are multichannel 24 bit audio codecs out there. The ADS1243 isn't one of them, though.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered 6 hours ago









                    JREJRE

                    22.5k53773




                    22.5k53773












                    • $begingroup$
                      Do you know of any "multichannel 24 bit audio codecs"
                      $endgroup$
                      – James Conway
                      6 hours ago






                    • 1




                      $begingroup$
                      Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
                      $endgroup$
                      – JRE
                      6 hours ago






                    • 1




                      $begingroup$
                      Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
                      $endgroup$
                      – JRE
                      6 hours ago










                    • $begingroup$
                      Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
                      $endgroup$
                      – James Conway
                      6 hours ago


















                    • $begingroup$
                      Do you know of any "multichannel 24 bit audio codecs"
                      $endgroup$
                      – James Conway
                      6 hours ago






                    • 1




                      $begingroup$
                      Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
                      $endgroup$
                      – JRE
                      6 hours ago






                    • 1




                      $begingroup$
                      Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
                      $endgroup$
                      – JRE
                      6 hours ago










                    • $begingroup$
                      Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
                      $endgroup$
                      – James Conway
                      6 hours ago
















                    $begingroup$
                    Do you know of any "multichannel 24 bit audio codecs"
                    $endgroup$
                    – James Conway
                    6 hours ago




                    $begingroup$
                    Do you know of any "multichannel 24 bit audio codecs"
                    $endgroup$
                    – James Conway
                    6 hours ago




                    1




                    1




                    $begingroup$
                    Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
                    $endgroup$
                    – JRE
                    6 hours ago




                    $begingroup$
                    Google barfed up a long list when I used that search term. Also, check Mouser or Digikey using those keywords. I've never built anything that needed such a beast.
                    $endgroup$
                    – JRE
                    6 hours ago




                    1




                    1




                    $begingroup$
                    Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
                    $endgroup$
                    – JRE
                    6 hours ago




                    $begingroup$
                    Something like this is the wildest I've ever used. Also low speed. The biggest difficulty you will have is in actually making use of 24 bits. It can be a challenge to keep noise and crosstalk down to the point that those 24 bits represent signal instead of noise.
                    $endgroup$
                    – JRE
                    6 hours ago












                    $begingroup$
                    Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
                    $endgroup$
                    – James Conway
                    6 hours ago




                    $begingroup$
                    Something like mouser.co.uk/Texas-Instruments/Semiconductors/Interface-ICs/… be suitable?
                    $endgroup$
                    – James Conway
                    6 hours ago











                    2












                    $begingroup$

                    From the datasheet




                    When a 2.4576MHz crystal is used, the device can be programmed for an output data rate of 15Hz, 7.5Hz, or 3.75Hz. Under these conditions, the digital filter rejects both 50Hz and 60Hz interference.




                    With a maximum datarate of 15Hz, I think you can kiss audio goodbye






                    share|improve this answer









                    $endgroup$













                    • $begingroup$
                      Perfect for recordings of whalesong.
                      $endgroup$
                      – Hearth
                      3 hours ago
















                    2












                    $begingroup$

                    From the datasheet




                    When a 2.4576MHz crystal is used, the device can be programmed for an output data rate of 15Hz, 7.5Hz, or 3.75Hz. Under these conditions, the digital filter rejects both 50Hz and 60Hz interference.




                    With a maximum datarate of 15Hz, I think you can kiss audio goodbye






                    share|improve this answer









                    $endgroup$













                    • $begingroup$
                      Perfect for recordings of whalesong.
                      $endgroup$
                      – Hearth
                      3 hours ago














                    2












                    2








                    2





                    $begingroup$

                    From the datasheet




                    When a 2.4576MHz crystal is used, the device can be programmed for an output data rate of 15Hz, 7.5Hz, or 3.75Hz. Under these conditions, the digital filter rejects both 50Hz and 60Hz interference.




                    With a maximum datarate of 15Hz, I think you can kiss audio goodbye






                    share|improve this answer









                    $endgroup$



                    From the datasheet




                    When a 2.4576MHz crystal is used, the device can be programmed for an output data rate of 15Hz, 7.5Hz, or 3.75Hz. Under these conditions, the digital filter rejects both 50Hz and 60Hz interference.




                    With a maximum datarate of 15Hz, I think you can kiss audio goodbye







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered 6 hours ago









                    Neil_UKNeil_UK

                    78.4k284181




                    78.4k284181












                    • $begingroup$
                      Perfect for recordings of whalesong.
                      $endgroup$
                      – Hearth
                      3 hours ago


















                    • $begingroup$
                      Perfect for recordings of whalesong.
                      $endgroup$
                      – Hearth
                      3 hours ago
















                    $begingroup$
                    Perfect for recordings of whalesong.
                    $endgroup$
                    – Hearth
                    3 hours ago




                    $begingroup$
                    Perfect for recordings of whalesong.
                    $endgroup$
                    – Hearth
                    3 hours ago











                    2












                    $begingroup$

                    The ADS1234 is a part designed for use in low bandwidth high resolution sensor sampling applications. In particular bridge style sensors are supported where gain is applied to the sensor reading and even 50/60 Hz filtering is performed. It indicates right in the "Features" section of the data sheet that signal sample rates of 10 or 80 samples per second are supported.



                    enter image description here



                    Audio sampling on the other hand is done at much higher rates. High performance audio sampling for CD is typically done at 44.1kHz and DVD at 48kHz. So as you can see, this device is not at all suitable for what you intend.






                    share|improve this answer









                    $endgroup$









                    • 1




                      $begingroup$
                      Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
                      $endgroup$
                      – Hearth
                      3 hours ago










                    • $begingroup$
                      @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
                      $endgroup$
                      – Michael Karas
                      1 hour ago










                    • $begingroup$
                      Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
                      $endgroup$
                      – Hearth
                      24 mins ago












                    • $begingroup$
                      Well my technique does not require me to do tedious manual erase of the text.
                      $endgroup$
                      – Michael Karas
                      48 secs ago
















                    2












                    $begingroup$

                    The ADS1234 is a part designed for use in low bandwidth high resolution sensor sampling applications. In particular bridge style sensors are supported where gain is applied to the sensor reading and even 50/60 Hz filtering is performed. It indicates right in the "Features" section of the data sheet that signal sample rates of 10 or 80 samples per second are supported.



                    enter image description here



                    Audio sampling on the other hand is done at much higher rates. High performance audio sampling for CD is typically done at 44.1kHz and DVD at 48kHz. So as you can see, this device is not at all suitable for what you intend.






                    share|improve this answer









                    $endgroup$









                    • 1




                      $begingroup$
                      Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
                      $endgroup$
                      – Hearth
                      3 hours ago










                    • $begingroup$
                      @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
                      $endgroup$
                      – Michael Karas
                      1 hour ago










                    • $begingroup$
                      Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
                      $endgroup$
                      – Hearth
                      24 mins ago












                    • $begingroup$
                      Well my technique does not require me to do tedious manual erase of the text.
                      $endgroup$
                      – Michael Karas
                      48 secs ago














                    2












                    2








                    2





                    $begingroup$

                    The ADS1234 is a part designed for use in low bandwidth high resolution sensor sampling applications. In particular bridge style sensors are supported where gain is applied to the sensor reading and even 50/60 Hz filtering is performed. It indicates right in the "Features" section of the data sheet that signal sample rates of 10 or 80 samples per second are supported.



                    enter image description here



                    Audio sampling on the other hand is done at much higher rates. High performance audio sampling for CD is typically done at 44.1kHz and DVD at 48kHz. So as you can see, this device is not at all suitable for what you intend.






                    share|improve this answer









                    $endgroup$



                    The ADS1234 is a part designed for use in low bandwidth high resolution sensor sampling applications. In particular bridge style sensors are supported where gain is applied to the sensor reading and even 50/60 Hz filtering is performed. It indicates right in the "Features" section of the data sheet that signal sample rates of 10 or 80 samples per second are supported.



                    enter image description here



                    Audio sampling on the other hand is done at much higher rates. High performance audio sampling for CD is typically done at 44.1kHz and DVD at 48kHz. So as you can see, this device is not at all suitable for what you intend.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered 6 hours ago









                    Michael KarasMichael Karas

                    45k348104




                    45k348104








                    • 1




                      $begingroup$
                      Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
                      $endgroup$
                      – Hearth
                      3 hours ago










                    • $begingroup$
                      @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
                      $endgroup$
                      – Michael Karas
                      1 hour ago










                    • $begingroup$
                      Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
                      $endgroup$
                      – Hearth
                      24 mins ago












                    • $begingroup$
                      Well my technique does not require me to do tedious manual erase of the text.
                      $endgroup$
                      – Michael Karas
                      48 secs ago














                    • 1




                      $begingroup$
                      Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
                      $endgroup$
                      – Hearth
                      3 hours ago










                    • $begingroup$
                      @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
                      $endgroup$
                      – Michael Karas
                      1 hour ago










                    • $begingroup$
                      Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
                      $endgroup$
                      – Hearth
                      24 mins ago












                    • $begingroup$
                      Well my technique does not require me to do tedious manual erase of the text.
                      $endgroup$
                      – Michael Karas
                      48 secs ago








                    1




                    1




                    $begingroup$
                    Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
                    $endgroup$
                    – Hearth
                    3 hours ago




                    $begingroup$
                    Okay, I have to ask, how did you do that cut effect in your image there? Do you use some screenshot software that automates it, or did you do it manually?
                    $endgroup$
                    – Hearth
                    3 hours ago












                    $begingroup$
                    @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
                    $endgroup$
                    – Michael Karas
                    1 hour ago




                    $begingroup$
                    @Hearth - It is done manually in Microsoft Paint program. I could describe the steps that make it easy to if you are really interested.
                    $endgroup$
                    – Michael Karas
                    1 hour ago












                    $begingroup$
                    Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
                    $endgroup$
                    – Hearth
                    24 mins ago






                    $begingroup$
                    Nah, I can see how to do it manually. I was just wondering if you had some quick and easy way to do it. Thanks!
                    $endgroup$
                    – Hearth
                    24 mins ago














                    $begingroup$
                    Well my technique does not require me to do tedious manual erase of the text.
                    $endgroup$
                    – Michael Karas
                    48 secs ago




                    $begingroup$
                    Well my technique does not require me to do tedious manual erase of the text.
                    $endgroup$
                    – Michael Karas
                    48 secs ago


















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