AD9959/PCB
Rev. 0 | Page 19 of 28
In the
Channel Output Config
window (Figure 39), Channel 0 has a frequency output of 10 MHz (
Frequency 00
box), Channel 1 an
output frequency of 20 MHz, Channel 2 an output frequency of 30 MHz, and Channel 3 has a frequency output of 40 MHz. Because the
RU/RD operation is enabled, the
Enable ASF
and
Enable Auto ASF
boxes are checked. The amplitude scalar factor (
ASF
) is set to 1 (full
scale). Therefore, the output signal will be 0 MHz until the correct profile pin is selected to ramp the frequency up to full scale. When this
setup file is loaded, profile pins
P0
,
P1
,
P2
, and
P3
are pressed as shown in the
Profile and RURD Pin Control Section
.
P0
controls
Channel 0,
P1
controls Channel 1,
P2
controls Channel 2, and
P3
controls Channel 3. If a profile pin is deselected, the associated
channel’s output will return to 0 MHz. To return to full scale, re-press the profile pin that triggers the RU/RD operation.
05698-039
Figure 39.
Modulation Mode
Open the
Modulation Mode
folder to access the modulation mode of operation example setup files. Once this folder is opened you will
be presented with the window shown in Figure 40.
05698-040
Figure 40.
For frequency modulation (FSK), open the
Frequency
folder; for phase modulation (PSK), open the
Phase
folder; and for amplitude
modulation (ASK), open the
Amplitude
folder. In these folders, all setup files are indexed by their level (2, 4, 8, or 16-level). This section
discusses the
CH2_@3 MHz increments.stp
file found in the
Frequency
folder under the
16-level
folder.
