Other Parts Discussed in Thread: DAC3482
Hi,
I am testing the DAC3484 and followed power up sequence. I am programming the DAC through TI GUI. I am using the single sync mode and only using SYNC signal as data formatter and syncing source for FIFO input, output and clock divider synchronization. Besides we are using PLL by pass mode and not enable mixer, offset, QMC and NCO. I selected the quad channel and disabled all the DAC sleep. Without enabling data transmission, I tested the output of the channel B and C having a bias voltage, but channel A and D had nothing change. After I enabled the data transmission, I could see the waveform at channel B and C, and still nothing at channel A and D. I sent exactly the same data into 4 channels. and I also tried to switch quad mode to dual mode and enable outer DAC, channel B and C still having waveform and nothing showed at channel A and D. So I wonder whether I missed any configuration setting?
Thank you!