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Tektronix, R&S to exhibit new wares at ESC

Posted: 01 Sep 2011 ?? ?Print Version ?Bookmark and Share

Keywords:frequency? channel? bandwidth? signal? analog?

Tektronix Inc. has launched an oscilloscope that works as a scope as well as a spectrum analyzer at the same time. Rohde & Schwarz claimed it has enhanced its digital trigger scope which is used for analysis of extremely small signals. These companies are expected to showcase these developments at the Embedded Systems Conference (ESC) in Boston on September 26 to 29.

Tektronix's MDO4000 series enables time-correlated analog, digital and rf signals to be captured in a complete system view.

"We believe that the MDO4000 series is breaking down the barrier between time and frequency domains," said Roy Siegel, general manager of oscilloscopes at Tektronix. "It fundamentally changes what's involved in debugging designs with radio frequency (RF) where there is a need to correlate events in the frequency domain with the time domain phenomena that caused them."

The�MDO4000 allows users to capture time-correlated analog, digital and RF signals across four analog, 16 digital and one RF channel. The RF input frequency range extends up to 6GHz and provides a capture bandwidth of 1GHz at all center frequencies, 100 times wider than typical spectrum analyzers, according to Tektronix.

Time correlation measurements between domains enables engineers to understand delays and latencies between command/control events in their designs and the relative changes in the RF spectrum of a signal at any point in time within a long acquisition. A proprietary Spectrum Time function enables the view of the RF spectrum for any point in the acquired signal while simultaneously showing analog, digital and/or decoded buses.

Tektronix has 26 patents pending for integrating the time and frequency domains in a single instrument.

Meanwhile, the Rohde & Schwarz RTO Scope series enables signals to be displayed with the least possible trigger jitter. The company is aiming the digital scope for debugging biomedical sensors and equipment.

"The RTO oscilloscope family is well-suited for biomedical measurements based on its low noise front-end performance and A/D converter to deliver accurate signal acquisition," said Mike Schnecker, business development manager at Rohde & Schwarz (R&S).

The digital trigger in the RTO Scope Series does not need to "re-arm" as in analog triggers, allowing every sample to trigger data acquisition and thus avoid missing events.

Models in the RTO Scope Series allow between two and four channels, and 1 and 2GHz bandwidths. Sampling rates are up to 10Gsample/s, enabled by the company-designed and-built high-speed ASIC, deep waveform acquisition memory and the single-core A/D converter, according to R&S. The low-noise front end makes precise measurements possible even at the lowest vertical setting, said Schnecker.

One "cool factor" in the RTO series is that engineers can drag-and-drop signal icons anywhere on the 10.4in touch display to keep track of channels,�math waveforms and reference signalsall on a single screen.

Signal icons show waveforms in real time as thumbnails that can be dragged and dropped to the main display as needed. Users can activate multiple diagrams and a SmartGrid function helps in organizing the screen. Semi-transparent dialog boxes allow waveform diagrams on the RTO retain their original size. Semi-transparent overlays map processed signals onto a signal flow diagram, for example.

- Nicolas Mokhoff
??EE Times

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