BNC 745 - Manual (Page 18)

Model 745 Digital Delay Generator. November 2013
Timing principle using Burst mode
Each Channel can be independently set to Burst mode. In the following example Burst trigger has
been set to IN1, Burst pulse number to 5 and Burst period to TB
Figure - 9. Burst Mode Timing
The minimal burst period value is 1000ns. But it has to be noticed that this value depends on the
Burst trigger period value and on the Burst pulse number.
𝑻𝑩𝒎𝒊𝒏 =
𝑻
𝒕𝒓𝒊𝒈𝒈𝒆𝒓
𝒎𝒊𝒏
𝟐 ∗ 𝑷𝒖𝒍𝒔𝒆 𝑵𝒃𝒓
So, to get a TBmin = 1000ns we have to configure the device as follows:
• T
Trigger
min = Pulse nbr * 2000ns
• Pulse nbr min = 2
• T
trigger
min = 4000ns
As depicted on Figure - 9, in the case of a generation of pulse train (Burst Mode) on a channel, the
Gate In signal can inhibit some pulses among the pulse train.
© Berkeley Nucleonics Corp. 17 Model 745 User Manual