Measurement-computing BTH-1208LS-OEM Manual de usuario descargar pdf (Pagina 22)

BTH-1208LS-OEM User's Guide Specifications

External trigger

Table 12. Digital trigger specifications

Parameter Specification

Trigger source External digital; TRIG terminal

Trigger mode Software configurable for edge or level sensitive, rising or falling edge, high or low

level.

Trigger latency 10 µs max

Trigger pulse width 1 µs min

Input type Schmitt trigger, 47 kΩ pull-down to ground

Schmitt trigger hysteresis 0.76 V typ

0.4 V min

1.2 V max

Input high voltage threshold 1.74 V typ

1.3 V min

2.2 V max

Input high voltage limit 5.5 V absolute max

Input low voltage threshold 0.98 V typ

0.6 V min

1.5 V max

Input low voltage limit –0.5 V absolute min

0 V recommended min

External clock input

Table 13. External clock input specifications

Parameter Specification

Terminal name AICKI

Terminal type Input

Input clock rate 50 kHz, max

Clock pulse width 1 µs min