LeCroy intros jitter measurement solution

October 25, 2004 Chestnut Ridge, NY -- LeCroy Corp. has introduced the ASDA-J, which evaluates total jitter, as well as random (Rj) and deterministic (Dj) jitter, using both reference-clock-based and non-clock-based methods. Designed for use with LeCroy's SDA family of serial data analyzers, the ASDA-J enables measurement correlation with time interval analyzers (TIAs) and sampling oscilloscopes.

Oct 25th, 2004

October 25, 2004 Chestnut Ridge, NY -- LeCroy Corp. has introduced the ASDA-J, which evaluates total jitter, as well as random (Rj) and deterministic (Dj) jitter, using both reference-clock-based and non-clock-based methods. Designed for use with LeCroy's SDA family of serial data analyzers, the ASDA-J enables measurement correlation with time interval analyzers (TIAs) and sampling oscilloscopes.

With the ASDA-J, a single SDA can perform the same measurements that previously required a real-time digital oscilloscope, TIA, sampling oscilloscope, and bit error rate tester (BERT). It provides engineers with the ability to specify jitter to whatever method is required. A jitter wizard function facilitates the use of the features of these new measurement methods. The wizard guides the user through the instrument setup and automatically detects the sampling rate, bit rate, and pattern length of the signal. The result is a single-instrument solution for jitter that can produce significant time and cost savings.

The ASDA-J enhances jitter measurement accuracy and utility by adding an "edge-to-edge" jitter measurement mode to the standard "edge-to-reference" mode. This new mode enables the SDA to correlate its jitter measurements with both sampling oscilloscope- and TIA-based instruments. An enhanced precision digital clock recovery system adds the ability to define not only the loop bandwidth but also the shape factor of the phase locked loop, allowing accurate modeling of virtually any receiver. Two additional clock recovery modes for PCI Express and HDMI allow compliance measurements to be made to those standards as well. A filtered jitter mode supports ITU-T and SONET measurements. In this mode, peak-to-peak and RMS values, plus the jitter waveform, are displayed on the SDA's screen.

In addition to providing all the new analysis tools, the ASDA-J maintains the features of the first version ASDA. These features include an eye mask violation locator, bit error analysis, and advanced jitter measurement capabilities, including ISI plots and filtered jitter.

The ASDA-J complements the performance of the SDA 6000A and SDA 6020. Designed with the highest fidelity front end with SiGe technology, the SDA 6000A and SDA 6020 perform measurements on high-speed serial data streams according to a wide range of formats and standards, including Fibre Channel, Gigabit Ethernet, InfiniBand, IEEE 1394, and SONET/SDH (up to 3.5 Gbits/sec). The analyzers can conduct a variety of measurements on serial data signals, including eye pattern, jitter, and bit error rate, and can trace faults to the actual bit.

The ASDA-J costs $9,050 and is available 4-6 weeks ARO.

More in Design & Manufacturing