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AMC1303M2520: Digital Output Decoder Options

Michael David
Intellectual 460 points
Part Number: AMC1303M2520
Other Parts Discussed in Thread: TMS320F28377D, ADS1202

Hello,

I am using this current sense amplifier with the DSP TMS320F28377D which has the decoder built in. Are there any stand alone devices would decode the digital output?  I assume you cant just feed it into an FPGA of some similar device.  

  • 0
    TI__Mastermind 31655 points

    Hello Michael,

    You actually can feed the modulator output directly into an FPGA. Essentially all that is needed is a digital filter which can be implemented in an FPGA. Most commonly a sinc filter is used, and an example can be found in the ADS1202 reference design here: https://www.ti.com/tool/ADS1202REF. This reference design includes VHDL example code for the ADS1202. 

    The ADS1202 and the AMC1303 have very similar bitstream outputs, but one thing to note is that in the AMC1303 the data is ready on the rising edge of the clock, and in the ADS1202 the data is ready on the falling edge of the clock.

    Regards,