Bnc 645 User Manual download pdf (Page 32)

zero-crossing point if the waveform has a non-zero phase). If the

burst count is infinite, the Sync signal works the same way

described above for continuous waveforms.

•

If the burst generation is externally gated, the Sync signal starts

at a TTL “high” with the external gate signal. However, the sync

signal will not transition to a TTL “low” until the end of the last

cycle (may not be the zero-crossing point if the waveform has a

non-zero phase).

•

When the output waveform polarity is inverted, the associated

sync out signal is not affected.

3.13 To Restore the Factory Default Settings

To reset the waveform generator to its factory default settings, press

“Store/Recall” button and then choose “Set to Def” softkey. See Figure

3-12 and Figure 3-13. After choosing “Yes” to make confirmation, the

waveform generator has been restored to factory default settings.

Figure 3-14

Figure 3-15

For the default settings, please refer to Table 2.1 for Model 645 factory

default settings.

To set the power-on state, please refer to Section 5.2 Storing the

instrument state.

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Bnc 645 User Manual Page 32