2

dc1954af

DEMO MANUAL DC1954A

Quick start proceDure

The DC1954A is easy to set up to evaluate the performance

of the LTC6954. Follow the procedure below.

The DC590 and LTC6954_GUI application are required to

control the DC1954A through a personal computer (PC).

DC590 Configuration

Place the DC590 jumpers in the following positions (refer

to Figure 2):

JP4: EE

Must be in the EN position.

JP5: ISO

ON must be selected.

JP5: SW

ON must be selected.

JP6: VCCIO 3.3V or 5V must be selected. This sets the

SPI port to 3.3V or 5V operation, 3.3V

operation is recommended.

Connect the DC590 to one of your computer’s USB ports

with the included USB cable.

LTC6954_GUI Installation

The LTC6954_GUI software is used to communicate with

the LTC6954. It uses the DC590 to translate between USB

and SPI-compatible serial communications formats. The

following are the LTC6954_GUI system requirements:

• Windows Operating System: Windows XP, Windows

2003 Server, Windows Vista, Windows 7

• Microsoft .NET 3.5 SP1 or later

• Windows Installer 3.1 or later

• Linear Technology’s DC590 hardware

Figure 2. DC590 Jumper and Connector Locations