Chapter 2
NI 5450 Overview
NI PXIe-5450 User Manual
2-34
ni.com
Desired Sample
Rate (S/s)
I/Q
Bandwidth
(Hz)
1 Sample
/symbol
Total
Interpolation
Interpo-
lated
Sample
Rate
*
(MS/s)
Theoretical
Worst Case
Image
Feed-
through
(dB),
20 MS/s
Bandwidth
Signal
Theoretical
Worst Case
Image
Feed-
through
†
(dB),
Maximum
I/Q
Bandwidth
12 to 24 k
4.8 to 9.6 k
16384 to 32768
in steps of 32
370 to 400
N/A
<–100
24 to 48 k
9.6 to 19.2 k
8192 to 16384
in steps of 16
370 to 400
N/A
<–100
48k to 16.66 M
19.2 k to
6.664 M
24 to 8192
in steps of 8
310 to 400
N/A
–100
16.66 to 33.33 M
6.664 to
13.332 M
12 to 24
in steps of 4
300 to 400
N/A
–88
33.33 to 50 M
13.332 to 20 M
8
267 to 400
N/A
–61
50 to 67.5 M
20 to 27 M
4
200 to 270
–31
–23
67.5 to 100 M
27 to 40 M
4
270 to 400
–62
–45
100 to 135 M
40 to 54 M
2
200 to 270
–31
–31
135 to 200 M
54 to 80 M
2
270 to 400
–62
–28
200 to 270 M
80 to 108 M
1
200 to 270
–31
–8
270 to 399 M
108 to 159.6 M
1
270 to 399
–62
–8
400 M
120 M
1
400
–82
–52
Assumptions
: Internal Sample clock, High Resolution clock mode. Desired sample rate ranges do not include the first point
(a desired sample rate of 50 MS/s yields 8x total interpolation).
*
If your interpolated sample rate falls within an undesirable band, you can use the Modulation Toolkit to provide fractional
resampling that will adjust the sample rate to achieve better image rejection.
†
Calculated from sinc response and typical filter rejection for the NI 5450. Refer to the NI 5450 specifications for more
information about the expected performance of the NI 5450.
