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DAC7734: DAC7734EC - sine wave and staircase waveform generation

Nagendra SV
Prodigy 10 points
Part Number: DAC7734

Hi,

I am using DAC7734EC and i need to generate Sine wave and Staircase waveforms as DAC outputs, which will be amplified by a linear amplifier.

Please let me know the registers and values i need to set in order to produce the necessary waveforms. 

Share the reference design for the generation of Sine/Staircase waveforms.

Thanks and regards,

Nagendra

  • 0
    TI__Mastermind 41573 points

    Hi Nagendra,

    We do not have a reference design for this application, but there is no external circuitry required for waveform generation. You can follow the datasheet example for configuring the schematic for single or dual supply operation. 

    The values you write to generate the waveforms will depend on the number of steps you would like per period of the waveform. This is a 16-bit device, so the values would range from 0 to 2^16 (or 0xFFFF). The output voltage is calculated by:

    The write sequence consists of 24-bits. Bits 23 and 22 are the address bits that determine which DAC output channel is being updated. Bits 15 to 0 are the 16 data bits that set the output. 

    Best,

    Katlynne Jones