JAJSSV2G March 2011 – January 2024 DAC3482
PRODUCTION DATA
It is desired to use the highest DAC output rate as possible to move the DAC images further from the signal of interest to ease analog filter requirement. The DAC output rate must be greater than two times the highest output frequency of 200MHz, which is greater than 400MHz. Table 7-2 shows the possible DAC output rates based on the data input rate and available interpolation settings. The DAC image frequency is also listed.
FDATA | INTERPOLATION | FDAC | POSSIBLE? | LOWEST IMAGE FREQUENCY | DISTANCE FROM BAND OF INTEREST |
---|---|---|---|---|---|
245.76MSPS | 1 | 245.76MSPS | No | N/A | N/A |
245.76MSPS | 2 | 491.52MSPS | Yes | 318.64MHz | 145.76MHz |
245.76MSPS | 4 | 983.04MSPS | Yes | 810.16MHz | 637.28MHz |
245.76MSPS | 8 | 1966.08MSPS | No | N/A | N/A |
245.76MSPS | 16 | 3932.16MSPS | No | N/A | N/A |