ArbStudio
72
918221
RevA
Modulation Editor (Arbitrary/DDS)
Overview
Use
the
Modulation
Editor
tool
to
create
or
edit
a
modulating
waveform
in
Arbitrary
mode
(M
‐
ASK)
and
DDS
mode
(M
‐
FSK
and
M
‐
PSK).
The
window
contains
the
edit
modulation
section
and
the
graph
area
.
Hardware Resources
ArbStudio
allows
you
to
save
a
limited
number
of
modulating
waveform
samples
depending
on
hardware
resources
and
the
modulation
type.
•
M
‐
FSK
/
M
‐
PSK
modulations:
maximum
number
of
samples/Channel
=
511
•
M
‐
ASK:
maximum
number
of
samples/Channel
=
2047
ArbStudio
allows
a
minimum
and
a
maximum
time
resolution
for
the
modulating
signal.
•
Maximum
Resolution
=
1/max
sampling
frequency
(max
sampling
frequency
=
8
ns)
•
Minimum
Resolution
=
Max
Resolution
*
X
(X
=
4096
for
M
‐
ASK
and
X
=
1048576
for
M
‐
FSK
and
M
‐
PSK)
•
Each
sample
of
the
modulating
waveform
may
be
separated
respect
to
the
adjacent
samples
by
a
minimum
of
8ns
to
a
maximum
of
32.768us
for
M
‐
ASK
and
by
a
minimum
of
8ns
to
a
maximum
of
8.38
ms
for
M
‐
PSK
and
M
‐
FSK.
