Sundance SMT943 - Manual (Page 16)

User Manual SMT943 Page 16 of 54 Last Edited: 23/08/2011 17:24:00
The table below gathers the characteristics of all clock inputs/outputs:
External Reference Input
Input Voltage Level 1 – 3.3 Volts peak-to-peak (AC-coupled)
Frequency Range 0 – 100 MHz.
External Sampling Clock Input
Input Voltage Level 1.5 – 3.3 Volts peak-to-peak (AC-coupled)
Input Format Single-ended.
Frequency range 10-500 MHz
External Sampling Clock Output
Output Voltage Level 0-2.4 Volts fixed amplitude
Output Format LVTTL
External Trigger Inputs
Input Voltage Level 1.2-2.5 Volts peak-to-peak.
Format
DC-coupled and Single-ended. Protected by 2
clamping diodes.
Format LVCMOS
Figure 11 - Clock Architecture Main Characteristics.
Below are shown some captures of the external clock output:
Figure 12 - External clock output (98.304MHz – Divided by 5 output)