Wilder Technologies SATA 2.5 Test Adapter Especificaciones descargar pdf (Pagina 67)

Agilent Technologies, Inc.

Agilent Technologies, Inc. 67 SATA PHY, TSG & OOB Test MOI v.1.1 Revision 1.4

Appendix B – Cable Deskew Procedure

This procedure must be performed before measurements are made, and whenever the skew between the positive and

negative data input lines may have changed (i.e. cables have been disconnected and reconnected perhaps on the

other side of the diff pair). It is always a good practice to allow any real-time oscilloscope or high-performance

electronic instrumentation to warm-up for at least 20 minutes prior to deskewing channels to allow all critical input

circuitry to achieve a steady state at the ambient operating temperature.

Important note: SMA connectors should always be tightened and removed with a calibrated torque wrench designed

for that purpose. The torque wrench should limit torque to 5 inch-pounds.

1) Connect one 54855-67604 Precision 7mm (m) to APC 3.5mm (f) adapter each to the inputs of Channel 1

and Channel 3 on the Agilent DSA91204A Infiniium Real-time oscilloscope. These adapters will provide

SMA connector compatibility at full bandwidth (13GHz) to the front-end of the oscilloscope.

2) Attach one 36” SMA cable (Rosenberger or equivalent) each to the 54855-67604 adapters on the Channel 1

and Channel 3 inputs of the Infiniium scope. Channel 1 will eventually connect to the products TX+ and

Channel 3 to the products TX- outputs.

3) Connect any BNC (m) to SMA (m) adapter to the ‘Aux Out’ connector on the front panel of the Infiniium

scope. Now connect the middle input of the Agilent 11636B Power Divider to the SMA connection on the

‘Aux Out’ connector adapter, which will split the Aux Out signal source into two phase-matched and

amplitude balanced outputs.

4) Now attach the SMA cable outputs from Channels 1 & 3 to the remaining two output connections on the

Agilent 11636B Power Divider to complete the deskew connection process.

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Wilder Technologies SATA 2.5 Test Adapter Especificaciones Pagina 67