Agilent Technologies 8133A Manual de servicio descargar pdf (Pagina 43)

Testing Performance 3

16800 Series Portable Logic Analyzers Service Guide 43

6 Select Close in the Probe Setup dialog.

7 Select Close in the Channel Setup dialog.

Set the 8133A pulse width

1 On the 8133A pulse generator, set the Channel 2 pulse

width to 1.5 ns.

2 Observe the 54845A oscilloscope display. Change the

Channel 2 pulse width of the 8133A pulse generator so

that the pulse width measured at 1 volt on the

oscilloscope is equal to 1.5 ns minus the measurement

uncertainty and display resolution of the oscilloscope,

further reduced by 35 ps for test margin.

If you are using the 54845A/B oscilloscope, the

measurement uncertainty is ±((0.007% * ∆t) + (full

scale/2x memory depth) + 30 ps) = ±30.10 ps. Add 5 ps

for display resolution. Add 35 ps test margin.

1.5 ns - 30.10 ps - 5 ps - 35 ps = 1.43 ns. Set the pulse

width as measured on the 54845A/B oscilloscope to

1.43 ns.

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 187 188

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Agilent Technologies 8133A Manual de servicio Pagina 43