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How-to Articles |
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USB 3.0 Receiver Compliance Testing — SuperSpeed USB (USB 3.0) promises to become as popular and widespread as its predecessors. At 5 Gb/s, however, it is more than an order of magnitude faster than USB 2.0, posing challenges for physical layer testing. This paper reviews the requirements for receiver compliance testing with an example using the BERTScope family of products … Read more |
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Characterizing
an SFP+ Transceiver at the 16G Fibre Channel Rate — Learn more about compliance testing to the16G Fibre Channel standard. This paper demonstrates how an SFP+ Transceiver can be characterized at the 16G Fibre Channel rate of 14.025 Gb/s with the help of the BERTScope Si 17500C and BERTScope CR 14300A. ...Read more |
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Great Resources
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eSeminar: Pass USB 3.0 Compliance the First Time — Take your understanding of SuperSpeed USB testing to the next level with this new eSeminar. We will look at the key aspects of transmitter testing, along with the less well understood topic of receiver compliance, and the areas that frequently catch out the unwary.
February 25, 2010
 10 am PST / 1 pm EST
Hosted by Test & Measurement World
›› Register at Test & Measurement World
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eSeminar: New Test Requirements for 40/100 GbE Transceivers — Strong user demand is ahead of the development of the latest high speed Ethernet standards. Learn about some of the newest physical layer test requirements for the new 40/100 GbE standard as we give an overview of measurements and solutions in this rapidly evolving field.
March 2, 2010 Details to come.
Hosted by Lightwave Magazine
Sponsored by SyntheSys, in association with Tektronix. |
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What's New at SyntheSys? |
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BERTScope CR 28000A — Matching the needs of communications engineers pushing to 28 Gb/s and beyond, the new 28.6 Gb/s BERTScope CR model joins the recently announced CR 25000A. It has the same breakthrough capability of recovering clock on signals with ISI-based eye closure using its internal linear equalization function.
...Read more |
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BERTScope Si 8500C — Building on the BERTScope S 7500B, the new 8.5 Gb/s 8500C covers PCIe Gen 3 rates, and offers new innovative features to enhance serial data compliance testing. These include asynchronous BER testing for USB 3.0 and flexible transmitter compliance waveform measurements with standards-specific presets. ...Read more |
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BERTScope Software Version 10.8 — Version 10.8 of the BERTScope software is now available for all existing and new BERTScopes. It includes flexible waveform-based eye measurements for transmitter compliance, J2 and J9 jitter measurements in optional Jitter Map, and more flexible A/B paging. It also supports the new Symbol Filtering and Stressed Live Data options available on the Si line of BERTScopes. |
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Come and See Us at... |
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DesignCon 2010
Santa Clara, California February 2–3, 2010 |
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USB-IF Compliance Workshop #71
Milpitas, California February 8–11, 2010 |
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PCI-SIG Compliance Workshop #70
Milpitas, California February 22–26, 2010 |
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OFC 2010
San Diego, California March 23–25, 2010 |
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SuperSpeed USB DevCon
Taipei, Taiwan April 1–2, 2010 |
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Question:
What is a Jitter Transfer Function (JTF)?
Answer:
The JTF is a measure (usually a plot of output jitter/input jitter against jitter frequency) of how a PLL amplifies or attenuates jitter. Conceptually it is like an inverse of the loop bandwidth (LBW) plot, which shows the jitter not tracked by the circuit. However, note that the two responses will almost certainly have different amounts of peaking, –3 dB frequencies, and slopes.
Standards such as USB 3.0 use a JTF to specify the clock recovery behavior required of measurement equipment. The new BERTScope CR Option XLBW extends the available JTF to the widest in a hardware instrument.
... Read more about Option XLBW for the BERTScope CR
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Science Puzzler
Why does a piece of chalk produce a hideous squeal if you hold it incorrectly? Why do squeaky doors squeak? Why do tires squeal on a car that is drag racing from a dead stop?
(Click for Answer)
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Quote of Note
“I love deadlines. I like the whooshing sound they make as they fly by.”
— Douglas Adams
British science fiction author
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Guess What?
(Click for answer)
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