Linear Technology USB Serial Controller for QuikEval Demo Boards Linear Technology DC590B DC590B Data Sheet
Product codes
DC590B
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 590B
USB SERIAL CONTROLLER FOR LINEAR TECHNOLOGY QUICKEVAL™ DEMO BOARDS
2
Figure 2. Basic Connections
Demo Circuit
Under Evaluation
USB Cable
To Host PC
ISOLATED
GROUND
GROUND
Connect 2.7 to 5V Logic supply ONLY IF
VCCIO is set to EXT. See Text.
VCCIO is set to EXT. See Text.
Connect external 10-12V supply ONLY
IF JP5, ISO is set to OFF. See Text.
IF JP5, ISO is set to OFF. See Text.
Do Not Connect
Isolated Power Supply
(Shown in OFF position)
Select Isolated Supply
Voltage (2.7V, 3.3V,
5.0V, or External
Voltage (2.7V, 3.3V,
5.0V, or External
Do Not Connect