Teledyne-lecroy Serial Data Debug Solutions Manual de usuario descargar pdf (Pagina 142)

Serial Data Debug Solutions

142

919586 RevA

BRIEF HS COMMON MODE TEST DESCRIPTIONS

 With HS Common Mode selected in the Category field, the following Measure values are available:

VCMTX-DATA-1, VCMTX-DATA-0, VCMTX-CLK-1, VCMTX-CLK-0, dVCMTXLF-DATA, dVCMTXHF-DATA,

dVCMTXLF-CLK, and dVCMTXHF-CLK.

Name

Purpose

VCMTX-DATA-

To verify that the Static Common-Mode Voltages (VCMTX(1), and VCMTX(0)) of the DUT Data &

Clock Lanes HS transmitter are within the conformance limits.

VCMTX-DATA-

VCMTX-CLK-1

VCMTX-CLK-0

dVCMTXLF-

DATA

To verify that the AC Common-Mode Signal Level Variations between 50 and 450MHz

(ΔVCMTX(LF)) of the DUT Data & Clock Lanes HS transmitter are less than the maximum

allowable limit.

dVCMTXLF-

CLK

dVCMTXHF-

DATA

To verify that the AC Common-Mode Signal Level Variations above 450MHz (ΔVCMTX(HF)) of the

DUT Data & Clock Lanes HS transmitter are less than the maximum allowable limit.

dVCMTXHF-

CLK

BRIEF HS LEVELS TEST DESCRIPTIONS

 With HS Levels selected in the Category field, the following Measure values are available:

VOD-DATA-1, VOD-DATA-0, VOD-CLK-1, VOD-CLK-0, VOHHS-Dp, VOHHS-Dn, VOHHS-CLKp, and VOHHS-

CLKn.

Name

Purpose

VOD-DATA-1

To verify that the Differential Voltages (VOD(0) and VOD(1)) of the DUT Data & Clock

Lanes HS transmitter are within the conformance limits.

VOD-DATA-0

VOD-CLK-1

VOD-CLK-0

VOHHS-Dp

To verify that the Single-Ended Output High Voltages (VOHHS(DP) and VOHHS(DN)) of the

DUT Data & Clock Lanes HS transmitter are less than the maximum conformance limit.

VOHHS-Dn

VOHHS-CLKp

VOHHS-CLKn

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