NuPower
TM
Mini
Multi
‐
Octave
PA
User
Manual
Rev
1.4
5
2.3
HEAT
SINKING
The
NuPower
Mini
MOPA
is
offered
as
a
stand
‐
alone
module
or
with
a
kit,
which
also
includes
a
fan
‐
cooled
heatsink
with
an
AC
/
DC
adapter,
and
an
interface
cable.
Figure
3:
The
NuPower
PA
Kit
offers
“out
‐
of
‐
the
‐
box”
operation
for
the
user.
The
fan
‐
cooled
heatsink
with
an
AC
/
DC
adapter
is
shown
with
an
example
PA
(NuPower
Mini
MOPA
not
shown).
Caution:
The
use
of
external
heat
‐
sinking
is
required
especially
for
those
applications
requiring
high
duty
cycle
operation
(e.g.
continuous
wave)
or
for
extended
on
‐
time
testing.
Operation
without
a
proper
heat
sink
under
these
conditions
will
cause
permanent
damage
to
the
product
and
will
void
the
product
warranty.
The
external
heatsink
thermal
resistance
requirements
are:
<0.35
˚
C/W
for
operation
up
to
40
˚
C
ambient
<0.20
˚
C/W
for
operation
up
to
55
˚
C
ambient
3
SETUP
AND
OPERATION
This
section
provides
specific
details
for
proper
operation
of
the
NuPower
Mini
MOPA
module.
Following
these
guidelines
will
prevent
damage
to
the
power
amplifier
or
external
equipment.
3.1
POWER
SUPPLY
REQUIREMENTS
To
operate
the
NuPower
Mini
MOPA,
ensure
that
the
power
supply
has
adequate
overhead
to
source
the
current
demand
of
the
RF
power
amplifier.
The
power
supply
source
must
provide
a
typical
voltage
of
+28
VDC
with
greater
than
3
amps
capability.
