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TMS320C6748: Picking an ADC to compliment our board

Brian Dougenik
Prodigy 160 points
Part Number: TMS320C6748
Other Parts Discussed in Thread: ADS8363EVM,

Hello,

i apologize in advance if i am in the wrong area or am missing info. My team and I are using the prior mentioned DSP development board but need a greater sampling rate (about 1Ms/s). My question is, how will we know if a peripheral is compatible? We are planning to use SPI to connect to the adc and have a few we are looking at. First the Ti DAC80504EVM (D to A converter) and second the Ti ADS8363EVM (A to D). I am also unsure of which port on the adc would connect to. (uPP?) I am clearly a beginner in this area so all and any information will be greatly appreciated.

Thank you,

Brian Dougenik

  • 0
    TI__Guru**** 161600 points
    Hi Brian,

    You should refer to the ADC/DAC datasheets, specifically to the digital interfaces of the adc & dac, for example if you take a look at DAC8050 datasheet: www.ti.com/.../sbas871b.pdf, you will see the following statement "50-MHz, SPI-Compatible Serial Interface", on the EVM you will see there are serial input/output (SDA, SDO) & chip select (CS) signals which are typical for the SPI interface.

    UPP is also a good choice for connecting an ADC to the TMS320C6748, in fact, this is among the primary purposes of this interface. To use it you need: data pins, enable pin, clock pin, start pin & wait pin. You can check the device TRM & the following wiki:
    processors.wiki.ti.com/.../Introduction_to_uPP

    Best Regards,
    Yordan