SI8718 Datasheet, PDF (4/16 Pages) Silicon Laboratories – EVALUATION BOARD USERS GUIDE

Si871x-EVB
3. Hardware Overview and Demo
Figure 4 illustrates the connection diagram to demonstrate the Si871x-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 5 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 prepopulated, 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
Signal Input
+
(500 kHz, 5 Vpk)
Square Wave
_
+
Power Supply
(5 V)
_
Figure 4. Summary Diagram and Test Setup
Figure 5. Oscilloscope Display of Input and Output
4
Rev. 0.1