Agilent Technologies Weather Radio 1680 Uživatelský manuál stáhnout pdf (Strana 55)

Chapter 3: Testing Performance

To test the multiple-clock state acquisition

6 Enable the pulse generator channel 1 COMP (with the LED on).

7 Using the Delay mode of the pulse generator channel 1, position the pulses

according to the setup/hold combination selected, +0.0 ps or –100 ps:

a On the Oscilloscope, select [Define meas] Define ∆ Time - Stop edge:

falling.

b On the oscilloscope, select [Shift] ∆ Time. Select Start src: channel 1,

then select [Enter] to display the setup time (∆ Time(1)-(2)).

c Adjust the pulse generator channel 1 Delay until the pulses are aligned

according to the setup time of the setup/hold combination selected,

+0.0 ps or –100 ps.

8 Select the clocks to be tested:

a Click the Sampling Setup icon. The Analyzer Setup dialog opens.

b In the Sampling tab, click the Master button for one of the clocks and

select Falling Edge.

c Repeat the above steps for each of the remaining clocks until all clocks

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 173 174

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Agilent Technologies Weather Radio 1680 Uživatelský manuál Strana 55