Wilder Technologies SATA 2.5 Test Adapter Especificaciones descargar pdf (Pagina 69)

Agilent Technologies, Inc.

Agilent Technologies, Inc. 69 SATA PHY, TSG & OOB Test MOI v.1.1 Revision 1.4

bottom trace provides for visual presentation of unwanted differential mode signal resulting from relative

channel skew.

Skew between Channel 1

and Channel 3

Differential signal not

flat, indicating mismatch

in skew.

8) Referring to the following figure, perform the following steps to deskew the channels.

a. Click on the Setup 



 Channel 1 menu to open the Channel Setup window.

b. Move the Channel Setup window to the left so you can see the traces.

c. Adjust the Skew by clicking on the 



 or 



 arrows, to achieve the flattest response on the

differential signal (green trace).

d. Click the Close button on the Channel Setup window to close it.

e. The de-skew operation is complete.

f. Disconnect the cables from the Tee on the Aux Out BNC. Leave the cables connected to the

Channel 1 and Channel 3 inputs.

NOTE: Each cable is now deskewed for the oscilloscope channel it is connected to. Do not switch cables between

channels or other oscilloscopes, or it will be necessary to deskew them again. It is recommended that the cables be

labeled with the channel they were calibrated for.

9) The figure below shows the desired effect of no skew between the cables. Note that the channel 1 (yellow

trace) & channel 3 (purple trace) traces overlap, and the differential signal (green trace) is flat. If this is not

the case, then repeat the steps in section 8 above.

Appendix C – Verification of Lab Load Return Loss

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 86 87

Sin comentarios

Wilder Technologies SATA 2.5 Test Adapter Especificaciones Pagina 69