Rigol MSO/DS2000A Series Uživatelský manuál stáhnout pdf (Strana 175)

Chapter 7 Digital Channel RIGOL

MSO2000A/DS2000A User’s Guide 7-5

To Set the Waveform Display Size

Press LA  WaveSize, rotate to select the desired display size and the press

down . You can also press WaveSize continuously to switch among S (small), M

(medium) and L (large).

Note: L (large) can only be used when the number of channels currently turned on is

no more than 8.

Reorder Setting

Press LA  ReOrder to select the waveform order mode on the screen of the

channels currently selected. You can select “D0-D15” or “D15-D0” and the default is

“D0-D15”.

 D0-D15: the waveforms on the screen are D0-D15 from top to bottom.

 D15-D0: the waveforms on the screen are D15-D0 from top to bottom.

To Set the Threshold

Press LA  Threshold to enter the threshold setting menu. The threshold levels of

channels D7-D0 and channels D15-D8 can be set separately. When the voltage of the

input signal is greater than the threshold currently set, it is treated as logic 1;

otherwise, it is treated as logic 0.

Press Type to open the threshold type selection list to select a preset value or user.

 The preset values include TTL, 5.0V CMOS, 3.3V CMOS, 2.5V CMOS, 1.8V CMOS,

ECL, PECL, LVDS and 0V. After selecting a preset value, press AppToD7-D0 to

apply the threshold level to channels D7-D0 and press AppToD15-D8 to apply

the threshold level to channels D15-D8.

 When “User Def” is selected, press D7-D0 or D15-D8 and use to set the

desired thresholds respectively. The range is from -20.0V to +20.0V and the

default is 700mV.

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Rigol MSO/DS2000A Series Uživatelský manuál Strana 175