• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 82 subscribers
  • Views 314 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28388D: Benchmark information for ADC and C28x

Conor
Guru 12205 points
Part Number: TMS320F28388D

Tool/software:

Hi,

Q1. Is there any reference information on the throughput of the C2000 ADC? I am considering whether the C2000 ADC can be used for high-speed processing of audio signals.

Q2. Is there any benchmark information for the C28x compared to other companies' ARM cores?

Thanks,

Conor

  • 0
    TI__Mastermind 37900 points

    Hi Connor,

    The ADC timing diagrams in the F28388D datasheet section 7.11.2.3.9 illustrate how the throughput is derived.  First stage is data sampling time (SH) which is a function of the input network.  A well-matched input, which has signal source that has minimum source impedance can have a minimum SH time, for higher impedance sources, SH needs to be higher for proper signal settling.  Second stage is the quantization, which is dependent on the ADC speed.   The maximum ADC CLK speed is 50MHz and this provides the fastest conversion time.  Considering the best case scenarios for 16-bit mode, the maximum throughput is 1MSPS.  For 12-bit, maximum throughput is 3.5MSPS.  The ADC throughput will obviously decrease if the optimum conditions are not used.

    There is an application note on benchmarking showing how the different functions in C28 compare with ARM.  Here is the link.

    Regards,

    Joseph

  • 0 in reply to Joseph Casuga
    Guru 12205 points

    Hi Joseph,

    Thank you. It seems that the latest C29x cores offer even better performance.
    Please also provide any information on the Arm and C29x cores.

    Thanks,

    Conor

  • 0 in reply to Conor
    TI__Mastermind 37900 points

    Hi Conor,

    Please send a new post on C29x benchmarking so it will be assigned to the proper owner.

    Best regards,

    Joseph