Table 5-56 dacsel – dac selection parameters – Bird Technologies BDS-Manual User Manual
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Table 5-56 DACSel – DAC Selection Parameters
Note: Structure size = 6 bytes.
Name
Data Type
Description
Byte
Fund Number
USINT
The fundamental frequency index. This will also be
used as the “F1” frequency for intermods. One of
the following values (ranging 0-5):
0 – No fundamental selected (and no DAC output
selected).
1 – 5 – The selected fundamental.
Default: 0
0
F2 Fund
USINT
The frequency number of the “F2” frequency to use
when computing intermodulation products. One of
the following values (0-5):
0 – No intermods requested.
1 – 5 – Fundamental frequency to use at the F2
fundamental.
Default: 0
1
Harmonic
USINT
Harmonic index value to send out the DAC. This is
ignored if an intermod is selected (with Intermod).
One of the following values (0-15):
0 – The fundamental.
1 – The first harmonic.
…
15 – The fifteenth harmonic.
Default: 0
2
Intermod
SINT
Intermodulation product to send out the DAC.
One of the following values:
-3 – 3
rd
“minus” intermod.
-2 – 2
nd
“minus” intermod.
-1 – 1
st
“minus” intermod.
0 – No intermod selected.
1 – 1
st
“plus” intermod.
2 – 2
nd
“plus” intermod.
3 – 3
rd
“plus” intermod.
Default: 0
3
Units
USINT
Output units. See Output Units for a list of values.
Default: 0 (Vrms)
4
DAC Output
USINT
DAC output selection. The DAC to send the signal
out of. One of the following values (0-5):
0 – Invalid – no DAC selected.
1 – 5 The DAC to use as the output.
Default: 0
5