Teledyne LeCroy QPHY-SAS2 - Manual (Page 6)

6
917718 Rev A
INTRODUCTION
QPHY-SAS2 is a software package designed to capture, analyze, and report measurements in conformance with
UNH IOL Serial Attached SCSI (SAS) Consortium SAS-2 6Gbps Physical Layer Test Suite (Version 1.01). A copy
of the specification can be found on the UNH IOL FTP site.
Note: As of March 2nd, 2010 this document can be found at the following site but this is subject to change:
ftp://ftp.iol.unh.edu/pub/sas/test_suite/SAS-2_6Gbps_Physical_Layer_Test_Suite_(v1.01).pdf.
Compatibility
QPHY-SAS2 is a software option compatible with the following LeCroy X-Stream oscilloscopes:

WM806Zi, SDA806Zi, DDA806Zi (4x40 GS/s, 2x80GS/s) and higher bandwidth equivalents.

SDA II Option is required on WaveMaster oscilloscopes.

The minimum recommended bandwidth for testing SAS-2 targets and initiators at 6Gbps is
10GHz.
MATLAB is required (either installed on the oscilloscope or on a separate PC) for running the Waveform Distortion
Penalty test.
SETUP AND INSTALLATION
The following test equipment is required to perform SAS-2 tests.
Required Equipment

Real Time Digital Oscilloscope as listed in Compatibility section with firmware release 6.1.x.x or later, and
software option package QPHY-SAS2

QualiPHY Software (version 6.1.0.x or later) installed on either the oscilloscope or a separate PC.

SAS Test Fixture from Wilder Tech

Either the SAS Plug Adapter (SAS-TPA-P) or SAS Receptacle Adapter (SAS-TPA-R) must be
used depending on the connection to the device under test.
 50Ω Coax Cable with SMA Male Connectors, qty = 2

These cables should be nominally the same length so that the attenuation characteristics and
length are well matched. The cables should be as short as possible, while allowing connection
between the text fixtures and the oscilloscope (nominally 6 inches each).

For the automated de-skew procedure employing the differential signals from the DUT, these
cables must be matched to better than 1/2UI of the data rate tested (e.g. less than ~160ps for 6
Gbps)

1 PC power supply

DC Blocks , qty =2

<=10MHz to >=18GHz DC block are required for SAS2 testing (e.g Pasternack PE8210)