Specifications
Table 7: Jitter
Display (Option JIT)
Characteristic Performance requirement Reference information
Type Displays nume
rical and graphical readouts
of peak-to-peak jitter. Jitter derived from
demodulated recovered clock as described
in SMPTE RP19
2 2003. Jitter display only
operates witha3Gb/ssignal input.
High-Pass Filter Settings Can be set to 10 Hz, 1 kHz, 10 kHz, or
100 kHz.
High pass fil
ter has type-3 response for low
frequency rejection of 60 dB/decade below
the filter setting. High pass filter also applies
to digital
readout, jitter waveform and Eye
diagram display, but not the reference clock
output. There a re two independent Jitter
demodulat
ors which may be configured with
different loop bandwidths. One is applied to
the upper two tiles of the display, and the
other app
lies to the lower two tiles
High-Pass Filter Attenuation
Accurac
y
Frequency at w hich response is –3dB is
within 1
0% of nominal
High-Pass Frequency Response also applies
to readout and jitter waveform
High-End Frequency Response,
Typical
–3 dB at > 5 MHz
Applies to digital readout and jitter waveform
Applies to digital readout, jitter waveform,
and Re
ference Clock output
Maximum is a
funct
ion of jitter
frequency:
Maximum jitter is limited by measurement
range
at low frequencies, and by jitter
tolerance o f serial receiver at high
frequencies
10 Hz to
30 kHz
20 UI
p-p
30 kHz to
1MHz
Declines to 0.35 UI at 1 MHz
>1 MHz 0.35 UI
Min
imum
(noise floor)
is a function
of
bandwidth
selection:
Applies to jitter waveform
10
Hz
20
0pstypical
Maximum
Jitter
100 Hz,
1
kHz,
10 kHz,
100 kHz
40 ps typical
10 Waveform Monitors Specifications and Performance Verification