V850/V851 REPRATE LIMITS The V850/V851 digital delay generators are specified to have a maximum repetition rate of 2.5 MHz. The DDGs have an insertion (startup) delayof 25 nanoseconds, and require about 240 ns to reset and recover at the end of a timing cycle. The modules may be externally triggered at higher rates than 2.5 MHz, with the understanding that triggers may be missed if the programmed delay times are too long. If 'T' is the programmed time delay of the longest-programmed channel, the module will actually delay T + 25 ns (eg, T + insertion delay) and the maximum allowable reprate will be...  T, nanoseconds  Max reprate, Mhz  1 ns  3.8 MHz  100  3.0  118  2.8  159  2.5  200  2.2