Automated Jitter Decomposition with
Long Pattern Jitter Triangulation
Option Jitter Map for the BERTScope family adds
BER-based jitter decomposition as well as Long Pattern
Jitter Triangulation, which enables jitter separation on long patterns such as PRBS-31.
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Long Pattern Jitter Triangulation |
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Jitter Map can perform jitter decomposition on data patterns of any length,
including the 2+ billion-bit-long PRBS-31, provided that it can first run
successfully on a shorter data pattern.
Long patterns have long been used to test high speed
digital optical communication devices and interfaces. Engineers working with
standards such as 10 Gigabit Ethernet (10GbE) (IEEE 802.3ae-2002), OIF-CEI 2.0,
SFP+, XFP, and 40 & 100 GbE (IEEE 802.3ba, draft) routinely turn to PRBS-31
for a rigorous test pattern. In addition, standards are moving toward longer
patterns, for example 8 GT/s PCI Express®
(PCIe) 3.0 (draft) includes PRBS-23 and DisplayPort 5.4 Gb/s (draft) includes PRBS-16.
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Features
and Benefits of Jitter Map: |
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- Uses BER measurements
and is capable of direct TJ measurements down to
10-12 BER and beyond
- Run directly on patterns of length up to PRBS-15,
or run in Jitter Triangulation mode on longer patterns.
- Measurements include TJ, Random Jitter (RJ),
Deterministic Jitter (DJ), Bounded Uncorrelated Jitter (BUJ), Data Dependent
Jitter (DDJ), Inter-Symbol Interference (ISI), and Duty Cycle Distortion (DCD).
- Additional jitter measurements support popular standards
- Data Dependent Pulse Width Shrinkage (DDPWS), a
specific method of DDJ measurement, supports 8G Fibre Channel and SFP+
(SFF-8431)
- Uncorrelated Jitter (UJ) can be used for 8G Fibre
Channel, SFP+, and IEEE 802.3aq (10GBASE-LRM) testing
- Non-ISI is used in DisplayPort
- F/2* Jitter, which is jitter on every other bit
regardless of logic level, is implied in IEEE 802.3ap (10GBASE-KR) and has
appeared in drafts of 8 GT/s PCIe 3.0
- Jitter Map effectively handles crosstalk as well as many
other types of stress
- Operates on signals with minimal eye opening
- The navigable jitter tree is informative and intuitive
Ordering Information:
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Description |
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| BSA7500AB Opt-J-MAP |
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Add Jitter Decomposition to BSA 7500A or B |
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| BSA12500AB Opt-J-MAP |
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Add Jitter Decomposition to BSA 12500A or B |
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| BSA17500AC Opt-J-MAP |
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Add Jitter Decomposition to BSA 17500A or C |
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| BSA25000AC Opt-J-MAP |
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Add Jitter Decomposition to BSA 25000A or C |
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Extended warranty and product upgrade options are available. |
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 To learn
more about how BERTScope can meet your testing needs, or to schedule a demonstration
in your lab, contact our
Sales Engineers. |
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* F/2 and other Subrate Jitter measurements
are available up to 11.2 Gb/s on 17500 and 25000 series BERTScopes
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