Keysight Technologies N5991ST3A SATA, Руководство пользователя

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32 Keysight N5991 SATA Test Automation Software Platform User Guide
4 SATA Calibrations
Calibration Overview
Before any receiver test procedure can be run, the SATA receiver test
system must be calibrated.
The ValiFrame calibration plane is given by the DUT input ports. The
receiver test signal characteristics such as the signal generator output
voltage level and jitter parameters are typically affected by the signal
transmission between the generator output ports and the DUT input ports.
Thus, for any signal output parameter that you may select (referred to as
the ‘set value’), the jitter and the signal received at the DUT input ports
(referred to as the ‘actual value’) deviate from the set value. Additional
deviations can be caused by effects such as offset errors, hysteresis, and
nonlinear behavior of the signal generator. The ValiFrame calibration
procedures compensate the actual value deviations of the relevant signal
output parameter from the set values over the required parameter range.
All calibration procedures required for SATA receiver testing are included
in the ValiFrame software. The ValiFrame calibration procedures are
implemented such that the calibration process is conducted as quickly as
possible and is automated as much as possible, for example, by minimizing
the number of reconfigurations of the hardware connections.