• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 292 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

DAC3283 Dual Channel ?

Burak Selamlar
Prodigy 30 points
Other Parts Discussed in Thread: DAC3283

Hi. I am using (trying) DAC3283.

I init it with bellow data.

const Xuint16 DAC3283_Init_Values[] = {
0x0070,0x0121,0x0200,0x0310,0x04FF,0x0500,0x0600,0x0700,0x0800,0x0955,0x0AAA,0x0B55,0x0CAA,0x0D55,0x0EAA,0x0F55,0x10AA,0x1124,0x1202,0x13C2,0x1400,0x1500,0x1600,0x1704,0x1883,0x1900,0x1A00,0x1B00,
0x1C00,0x1D00,0x1E24,0x1F52};

I send sin(f1) from I data and sin(f2) Q data. I can see somethings at output but they aren't my signals. And I can't understand if Idata and Qdata are CH_A and CH_B or not. How can I control channels seperately?

  • 0
    TI__Genius 9695 points

    Hi Burak,

    Idata corresponds to CH_A and Q data corresponds to CH_B. You must format the digital data into the DAC based on the "byte wide format" described on pg 29 of datasheet.

    http://www.ti.com/lit/ds/symlink/dac3283.pdf

    I will also recommend testing the DAC with the TSW1400 pattern generator to confirm the DAC is set up correctly before building your own code to interface to it.

    Thanks,

    Eben.