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Oscilloscopes solve signal integrity issues

Posted: 29 Aug 2008     Print Version  Bookmark and Share

Keywords:Digital Phosphor Oscilloscopes  Z-Active probes  telecommunications systems  high-speed serial buses 

Tektronix Inc. has announced that the Innovationszentrum für Telekommunikationstechnik GmbH (IZT), a German manufacturer of DSP technologies, has selected its DSA70000 and DPO7000 high-performance Digital Phosphor Oscilloscopes (DPOs) and P7313 Z-Active probes for testing advanced telecommunications systems that employ high-speed serial buses.

Equipments operating at multi-Gbps data rates, now widely used in the mobile, broadcasting and satellite communications sectors, are increasingly making use of high-speed serial buses based on standards such as Serial Advanced Technology Attachment (SATA). Testing these systems requires very high-performance measurement instruments. IZT has invested in a range of Tektronix oscilloscopes to conduct projects in the high frequency RF domain such as developing demodulators and filters using FPGAs up to 3Gbps and to develop communications and broadcast equipment, satellite receivers and DAB transmitters.

"There are very few test and measurement suppliers who produce instruments that can meet our exacting requirement –from SATA (3Gbps and 6Gbps) and DDR timing measurements to general purpose lab measurements," said Andreas Klose, IZT Group Leader, Firmware Development Group. "We selected the Tektronix products for their powerful triggering capabilities, unique DPX technology, large display, general ease of use, and the probing system, which uses solder-in tips and digital signal processing. Overall, we found the Tektronix offerings provide the best available signal integrity for our demanding applications."

The products purchased by IZT are the DSA71254 12.5 GHz Digital Serial Analyser (DSA), P7313 Z-Active low-load probes and the 2.5 GHz DPO7254 Oscilloscope. The higher-speed instrument is used for measurements on high-speed serial data transmission at over 3Gbps, speeds at which signal integrity can be compromised within very short distances on a backplane or circuit board. The DPO7254 is typically used to test circuits including FPGAs and DDR memory devices.

The DSA70000 series offers more four-channel performance than any alternative oscilloscopes. It is ideal for high-speed serial data applications and an integral part of a next generation high-speed serial data test bench. Ultra-high performance oscilloscopes are required to capture the frequency harmonics of high-speed serial signals to make accurate and repeatable measurements. Tektronix says that its DSA70000 oscilloscopes provide support on all channels for ultra-high bandwidth, deep memory, fast sample rate and fast waveform capture rate. This is especially valuable for high-speed multi-lane serial data architectures where multi-channel analysis is needed for lane skew timing violations.

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