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NI 5421 Specifications
16
ni.com
System Phase Noise and Jitter (10 MHz Carrier)
Sample Clock
Source
System Phase Noise
Density
(dBc/Hz) Offset
System Output Jitter
(Integrated from
100 Hz to 100 kHz)
1. High-
Resolution
specifications
increase as the
Sample Rate is
decreased.
2.
NI PXI-5421
PXI Star
trigger
specification is
valid when the
Sample Clock
Source is
locked to
PXI_CLK10.
100 Hz
1 kHz
10 kHz
NI PXI-5421
Divide-by-
N
–107
–121
–137
<1.2 ps rms
NI PCI-5421
Divide-by-
N
–110
–127
–137
<2.0 ps rms
High-
Resolution
1
–109
–121
–123
<4.2 ps rms
NI PXI-5421
CLK IN
–111
–122
–135
<1.2 ps rms
NI PCI-5421
CLK IN
–113
–125
–135
<2.0 ps rms
NI PXI-5421
PXI Star
Trigger
2
–115
–118
–130
<3.0 ps rms
External
Sample Clock
Input Jitter
Tolerance
Cycle-Cycle Jitter ±300 ps
Period Jitter ±1 ns
—
Table 2.
(Continued)
Specification
Value
Comments