Part Number: DAC38J84 Tool/software: Hi team,
My customer is using DAC38J84 QMC function. They configure the register like below. When set the config16(qmc_phaseab) to 0x7ff or 0x800, the QMC don't work, and the IQ waveform is abnormal. Could you…
Part Number: DAC38J84 Tool/software: Hi all,
I am investigating the DAC38J84, and I noticed that the S4P files associated with the part seem to have the termination resistors embedded inside the part. However, the IBIS model has an external termination…
Part Number: DAC38J84 Hi,
I am using DAC38J84 component in my design.
I have checked two different cards with a thermal camera and compared the case temp. to the internal temp. sensor.
The case temperature of the DAC was the same (in both cards) but there…
Part Number: LMK04828 Hello,
I am currently working with the LMK in conjunction with the FMC144 card from Abaco. While the DACs theoretically can reach up to 2.5 GHz, they are currently stuck at their default frequency of 368.64 MHz. I'm utilizing a C…
Part Number: DAC38J84 Hi all,
I am trying to configure the DAC38J84 in a custom board. I have the DAC PLL locked and the PLL serdes locked but I am getting the FIFO empty error no matter what I try.
This is my configuration of the JESD IP core:
To sum…
Part Number: DAC38J84 After reading other posts/questions about the DAC38J84 and reading through the datasheet, I still have a question about the correct values to set the registers in the DAC38J84 for JESD204B operation using:
8 JESD204B lanes total…
Part Number: DAC38J84 In 7.3.27 of SLASE17B an equation is given to calculate IOUTFS. It is dependent on VEXTIO which is the same as VREF if the internal reference is used. Is there any way to determine a tolerance for IOUTFS given that only a typical…
Hi Amy,
If the user is using the DAC38J84 along with a RF modulator (i.e. TRF3705), then the NCO can be programmed as a "negative frequency" with I/Q phase in -180 degree fashion. The user can then see the output of the RF modulator with the signal on…
Hi Amy,
After re-reading this again, the SFDR value of 74.23 dB was measured on our EVM. The device was not characterized under the exact conditions you are using. However, looking at page 13 in the datasheet you can extrapolate that a SFDR of 74.23 dB would…