Sundance SMT381 2004 - Manual (Page 66)

9.3 Waveform Memory
In the following captures the waveform memory is set up for a cyclic run of 8 samples
per channel and a sinus wave programmed into the memory. One complete cycle of
the wave is loaded into the memory, resulting in a waveform being generated at 1/8
th
of the sample frequency. The DAC sample frequency is double that of the clock
supplied to the DAC. So for eg if a 500MHz clock is given to the DAC with the
waveform memory initialized as described above the DAC sample frequency will be
1000MHz and the generated wave will be 125MHz (1000MHz divided by 8).
Figure 53. Waveform Memory - Time View Capture – 1000MHz sample frequency
(500MHz VCO Clock) – 125MHz analog output.
Figure 54. Measurements of Capture – 1000MHz sample frequency (500MHz VCO
Clock) – 125MHz analog output.