Data Translation DT3120, Руководство пользователя

Страница: 107 / 128

Appendix A
90
Table 15 lists the electrical specifications for the video input signals of
the DT3120 boards.
Table 16 lists the electrical specifications for the external trigger
signals of the DT3120 board.
Table 15: Video Input Electrical Specifications
Feature Specification
Input Signal Range 0.5 V to 2.0 V
Input Impedance 75
Ω
± 10%
Table 16: External Trigger Electrical Specifications
Feature
Minimum
Specification
Maximum
Specification
Input Low Level (V
IL
) 0 VDC 0.4 VDC
a
a. Exceeding the voltage limits noted may cause damage to the device to which the
input is connected.
Input High Level (V
IH
) 3.5 VDC 5.0 VDC
Input rate - 10 Hz