Wilder Technologies SATA 2.5 Test Adapter Especificações descarregar pdf (Página 86)

Agilent Technologies, Inc.

Agilent Technologies, Inc. 86 SATA PHY, TSG & OOB Test MOI v.1.1 Revision 1.4

14. Check the peaking of the JTF. Adjust the pattern generator for a D24.3 pattern and modulation to produce

sinusoidal phase modulation (PJ) at the –3dB BW frequency found above, and 0.3 UI p-p +/- 10% (200ps

for Gen1i or 100ps for Gen2i or 50ps for Gen3i). Increase the frequency of the modulation to find the

maximum reported DJ; it is not necessary to increase beyond 20MHz. Measure the reported DJ difference

between PJ on versus PJ off, DJPK = DJPKON - DJPKOFF. Record this DJ difference (DJPK) and

frequency, F3PK.

15. Calculate the JTF Peaking value: 20Log (DJPK / DJMM). Record this value.

1 2 ... 81 82 83 84 85 86 87

Sem comentários

Wilder Technologies SATA 2.5 Test Adapter Especificações Página 86