UG130 Datasheet, PDF (7/14 Pages) Silicon Laboratories – Si86xxT-EVB Users Guide

UG130: Si86xxT-EVB User's Guide
Hardware Setup and Demonstration
3.2.4 Utilizing Enable
For an example, see the figure below.
• Place a shunt across J1 at A2.
• This produces a logic Low input on forward channel A2. The SI88642ET will transmit this to the B-side, and the corresponding
logic Low can be observed and measured with the DMM on J2, B2.
• Place a shunt across J2 at EN2.
• This drives EN2 to a logic Low input which tri-states outputs B1 and B2. A Hi-Z output can be observed on outputs B1 and B2
with the DMM (appearing as a high), even while A1 is a logic Low and A2 is a logic High.
Figure 3.4. EVB Configured for DC Signal Demonstration with Enable
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