Si87xx-EVB
3. Hardware Overview and Demo
Figure 5 illustrates the connection diagram to demonstrate the Si87xx-DIP8 EVB. The other footprint boards
demonstrate in a similar fashion. This demo transmits a 500 kHz (5 V peak, 50 percent duty cycle) square wave
through the isolator to its output (Vo). In this example, VDD is powered by a 5 V supply. Figure 6 shows a scope
shot of CH1 (input) and CH2 (output). Note that if a user wants to evaluate an LED Emulator Input isolator other
than the ones pre-populated, this can be accomplished by removing the installed device and replacing it with the
desired footprint-compatible isolator device.
Input
to Scope
CH1
Output
to Scope
CH2
+
+
Power Supply
(5 V)
Signal Input
(500 kHz, 5 Vpk)
Square Wave
+
-
_
_
Figure 5. Summary Diagram and Test Setup
Figure 6. Oscilloscope Display of Input and Output
4
Rev. 0.3
SILICONIMAGE [ Silicon image ]
