NI PXI-5404 Calibration Procedure
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© National Instruments
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25
Adjusting the CLOCK Out Duty Cycle
Refer to Figure 5 for an overview of the duty cycle adjustment process.
Figure 5.
Duty Cycle Adjustment Process
Ye
s
No
H
a
ve yo
u
performed
a
dj
us
tment
s
for every fre
qu
ency?
Clo
s
e the C
a
li
b
r
a
tion
S
e
ss
ion
b
y
C
a
lling niH
SS
o
u
rce
s
_C
a
lEnd
C
a
ll
niHSSources_ApplySessionConstants()
S
INE O
u
t Amplit
u
de Adj
us
tment
Gener
a
te
a
W
a
veform
a
t the
C
u
rrent Fre
qu
ency
Initi
a
lize
a
D
u
ty Cycle C
a
li
b
r
a
tion
a
t the C
u
rrent Fre
qu
ency
S
et the
S
YNC DAC to
a
R
a
nge
of V
a
l
u
e
s
; Me
asu
re the
D
u
ty Cycle for E
a
ch DAC V
a
l
u
e
C
a
ll
niHSSources_CalAdjust
with
a
ll of the
S
YNC DAC V
a
l
u
e
s
a
nd Corre
s
ponding Me
asu
rement
s