The 80E10, 80E08, and 80E04 are dual-channel Time Domain Reflectometry (TDR) sampling modules, providing up to 12 ps incident and 15 ps reflected rise time in the 80E10 (18 ps incident in 80E08 and 23 ps incident in 80E04). Each channel of these modules is capable of generating a fast step for use in TDR mode and the acquisition portion of the sampling module monitors the incident step and any reflected energy.
The polarity of each channel’s step can be selected independently. This allows for differential or common mode TDR or S-parameter testing of two coupled lines, in addition to the independent testing of isolated lines. The independent step generation for each channel allows true differential measurements, which ensures measurement accuracy for differential devices.
The 80E10 and 80E08 are small form factor, fully integrated independent 2-meter remote sampler systems, enabling location of the sampler near the DUT and ensuring the best signal fidelity. An optional 2-meter extender is available for the 80E04.
The modules characterize crosstalk by using TDR steps to drive one line (or line pair for differential crosstalk) while
monitoring a second line (or line pair) with the other channel (or another module for differential crosstalk). The "filter" function on the 8200 and 8000 Series mainframes can be used with TDR or crosstalk measurements to characterize expected system performance with slower edge rates.
All modules have independent incident step and receiver deskew to remove the effect of measurement fixtures and probes, enabling faster and easier de-embedding of test fixtures. The 80E10 sampling modules provide an acquisition rise time of 7 ps, with up to 50 GHz user-selectable equivalent bandwidth (with 50, 40, and 30 GHz settings). The 80E08 sampling bandwidth is 30 GHz (user selectable with 30 and 20 GHz settings) and 80E04 sampling bandwidth is 20 GHz. The 20 GHz P8018 single-ended and 18 GHz P80318 differential variable pitch TDR probes provide excellent performance and compliance, ensuring easy and accurate backplane and package measurements.
When the user employs these modules with Tektronix IConnect® TDR and VNA software, he or she can acquire up to 1,000,000 data points and obtain up to 50 GHz differential, mixed mode, and single-ended S-parameters.
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