Contec VNA-300M-PCI, User Manual, Page: 54 / 55

6. About Hardware
VNA-300M-PCI
47
Timing for Control Signal
Timing for Control Signal of Measurement function
Timing for control signal of measurement function is shown in figure 6.2, and table 6.2.
External Start Trigger Input
t
HRS
t
SRS
t
HFS
t
SFS
Figure 6.2. Timing for Sampling Start Control Signal
Table 6.2. Timing Table of External Control Signals
Items Symbol Time Unit
Set up time of sampling start signal (Rising edge) t
SRS
100 nsec
Hold time of sampling start signal (Rising edge) t
HRS
100 nsec
Set up time of sampling start signal (Falling edge) t
SFS
100 nsec
Hold time of sampling start signal (Falling edge) t
HFS
100 nsec
*1: When digital filter is being used, the delay time is added by 4
µ
sec.
CAUTION
All the model values are shown at the time of Table 6.2.