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Tektronix unveils 50GHz, 23GHz oscilloscopes

30 Sep 2015

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Tektronix has unveiled the 50GHz and 23GHz models for its DPO70000SX oscilloscope series. By extending the70GHz model, the new 50GHz product is ideal for engineers and researchers who want to take advantage of the low-noise performance of the patented asynchronous time interleaving (ATI) architecture for technologies such as 28GBaud PAM4 and Kband frequency testing. The 23GHz instrument joins the existing 33GHz models which feature compact dimensions and built-in scalability using the UltraSync synchronisation technology.

Tektronix' 50GHz and 70GHz ATI oscilloscopes allow engineers to more accurately capture and measure higher frequency signals with up to 30 per cent less system noise than the legacy frequency interleaving approaches used by other oscilloscope manufacturers.

Current real time scope solutions for digitising ultra-high bandwidth signals distribute signal energy to two digitising paths then use DSP to reconstruct the input signal. Unlike legacy schemes, Tektronix' unique ATI architecture uses a symmetrical technique that delivers all signal energy to both digitising paths resulting in an inherent noise advantage when signals are reconstructed. The 50GHz instrument's ATI channel offers 200GS/s sample rate for 5ps/sample resolution. It also has two standard (non-ATI) 33GHz channels with 100GS/s sample rate for 10ps/sample resolution.

Tektronix oscilloscope

To enhance signal fidelity, DPO70000SX oscilloscopes use a compact 5.25in form factor so the instrument can be positioned very close to the device under test (DUT) for shorter cable lengths and cleaner signals. The low height means each unit fits in a single 3U rackmount space, or two oscilloscopes can be stacked in the same space as a single standard bench oscilloscope.

Precise multi-instrument timing synchronisation is required for test applications such as validation of high-speed networking technologies used in long-reach fibre systems (DP-QPSK Coherent Modulation) and shorter-reach (PAM4) data centre networks. The DPO70000SX oscilloscopes meet these needs through the UltraSync architecture that provides precise data synchronisation and operation of multi-unit systems. UltraSync uses a 12.5GHz sample clock reference and coordinated trigger for inherent channel-to-channel skew stability superior to channels within a single instrument.

PAM4 analysis support

Multi-level signalling is being planned for deployment in future 56GBaud Datacom standards for transmission of distances up to 10km using a technique known as PAM4. The multi-level signalling presents unique measurement challenges for design engineers. To provide testing insight on this new technology, Tektronix is rolling out PAM4 Analysis support on the DPO70000SX family. The low noise acquisition system in the DPO70000SX 50GHz and 70GHz models enables very accurate characterisation of PAM4 signalling with this latest analysis toolset.

Rounding out the DPO70000SX Series, Tektronix is also introducing a new 23GHz model that takes advantage of the compact form factor and supports UltraSync. It features four 23GHz non-ATI channels with a 50GSample/s sample rate on each, for 20ps/sample resolution.

DPO70000SX 50GHz and 23GHz oscilloscope models will begin shipping in Q4, 2015. The existing 70GHz and 33GHz models are available now. 50GHz ATI units start at $290,000 MSRP with a two-unit system starting at $435,000 MSRP. A 23GHz non-ATI unit starts at $182,000 MSRP.

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