looking for 8/16-ch analog signal acquisition module

URGENT:

reference: see mythread:     http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/155693.aspx#580599

Hello friends,

I am looking for an analog acquisition module for my project. The concept is shown in figure below,

The idea is to acquire the acoustic signals transmitted by an audio source say, person, mechanical engine, etc. with help of an array of microphones (typically 4/8/16 no.s) and digitize their outputs using multi-channel ADCs and processes these digital acoustic data samples in DSP board(OMAP_L138 EVM from Logic PD, StarterWare).

I am looking for a board that can acquire analog signals, digitize, and send them to DSP via USB/Ethernet port so that I can process them in

Could anybody please suggest a ADC device AND evaluation kit for this application?

Regards,

Mahesh

Be brave and be sincere; then follow any path with devotion, and you must reach
God. Once lay hold of one link of the chain, and the whole chain must come by degrees.
Water the roots of the tree (that is, reach the Lord), and the whole tree is watered.
Getting the Lord, we get all.

Retreat given at the Thousand Island Park, USA. June 23, 1895. Complete Works, 7.6.
Swami Vivekananda




  • Hi, Mahesh,

    Check out PCM4204. It has an EVM as well.

    -d2

    -----

    Don Dapkus

    Audio Applications Engineering Manager

    Dallas, TX USA

  • In reply to Don Dapkus:

    Hello Don,

    this seems to be interesting.

    regards,

    mahesh

    Be brave and be sincere; then follow any path with devotion, and you must reach
    God. Once lay hold of one link of the chain, and the whole chain must come by degrees.
    Water the roots of the tree (that is, reach the Lord), and the whole tree is watered.
    Getting the Lord, we get all.

    Retreat given at the Thousand Island Park, USA. June 23, 1895. Complete Works, 7.6.
    Swami Vivekananda




  • In reply to mahesh:

    Reference: spru060.pdf

    Hello friends,

    I find one USB DAQ from TI which can be connected to host PC with Windows xp/vista. I copy-paste one para from the above reference document here.

     “ The figure below shows the system setup for the PGA308EVM. The host PC runs software that communicates with the USB DAQ platform. The USB DAQ platform generates the digital signals used to communicate with the PGA308 test board. Connectors on the PGA308 test board allow for connection to the system that will be monitored by the user.”


     

     

    Can we use OMAP-L138 EVM with StarterWare instead of host PC?  If yes, where can I get the drivers?

    Reply soon,

    With warm regards

    mahesh

    Be brave and be sincere; then follow any path with devotion, and you must reach
    God. Once lay hold of one link of the chain, and the whole chain must come by degrees.
    Water the roots of the tree (that is, reach the Lord), and the whole tree is watered.
    Getting the Lord, we get all.

    Retreat given at the Thousand Island Park, USA. June 23, 1895. Complete Works, 7.6.
    Swami Vivekananda




  • In reply to mahesh:

    Hello Don,

    Let us discuss about the PCM4204 EM kit before purchasing it. I am interested in interfacing this kit with LogicPD OMAP-L138 EVM kit.

    -  Could you see it physically? (The image in the on-line ordering is very small and not clear.)

    -  Could you identify the connector on the PCM4204 EVM kit which is to be mated with any one of the LogicPD OMAP-L138 EVM(Either base board/User Interface board)? What is the connector type?

    -  From the document  "User's Guide, SBAU104–August 2004", two signals namely SDOUT1 and SDOUT2 are available for external DSP processor interface. How can I read the  serial audio data output at SDOUT1 (pin 31) and SDOUT2 (pin 32) in to OMAP-L138 EVM kit?

    Please reply soon.

    Regards,

    Mahesh

    Be brave and be sincere; then follow any path with devotion, and you must reach
    God. Once lay hold of one link of the chain, and the whole chain must come by degrees.
    Water the roots of the tree (that is, reach the Lord), and the whole tree is watered.
    Getting the Lord, we get all.

    Retreat given at the Thousand Island Park, USA. June 23, 1895. Complete Works, 7.6.
    Swami Vivekananda




  • In reply to mahesh:

    Dear Mahesh

    I am also working on similar lines for some U/W application...can you suggest how you achieved 4/8 Audio ADC channels interface with L138 EVM interface...

    regards

    hemant