3) Verify that all jumpers (JU1–JU6) are in their default

positions, as shown in Table 1.

4) To measure OUTA, connect the first DVM between

H2-1 (OUTA) and H2-2 (GND).

5) To measure OUTB, connect the second DVM

between H2-3 (OUTA) and H2-4 (GND).

6) Connect the USB cable from the PC to the EV kit

board. A Building Driver Database window pops

up in addition to a New Hardware Found mes-

sage when installing the USB driver for the first

time. If you do not see a window that is similar to

the one described above after 30s, remove the

USB cable from the board and reconnect it.

Administrator privileges are required to install the

USB device driver on Windows 2000 and XP.

Refer to the TROUBLESHOOTING_USB.PDF docu-

ment included with the software if any problems

arise during this step.

7) Follow the directions of the Add New Hardware

Wizard to install the USB device driver. Choose the

Search for the best driver for your device option.

Specify the location of the device driver to be

C:\Program Files\MAX5535 (default installation

directory) using the Browse button.

8) Start the MAX5535 EV kit software by opening its

icon in the Start | Programs menu. The EV kit soft-

ware main window should appear, as shown in

Figure 1.

9) Enter 0xD2E into the D11 - D0 (Shift Register Data

Bits) edit box.

10) Press the lower Load DAC A and DAC B button

located at the bottom of the EV kit software main

window. This loads input and output DAC registers

from the shift register.

11) Verify that the voltage shown on both DVMs is

approximately 1V.

MAX5535 Evaluation Kit

_______________________________________________________________________________________

3

Table 1. MAX5535 EV Kit Jumper Descriptions (JU1–JU6)

JUMPER

SHUNT

POSITION

DESCRIPTION

1-2*

MAX5535 VDD is set to the on-board 3.3V supply powered from the USB port.

JU1

2-3

Connect an external 1.8V to 5V supply to the VDD pad.

1-2

Connect user-supplied

CS signal to the on-board CS pad.

JU2

2-3*

MAX5535

CS signal connected to on-board microcontroller.

1-2

Connect user-supplied SCLK signal to the on-board SCLK pad.

JU3

2-3*

MAX5535 SCLK signal connected to on-board microcontroller.

1-2

Connect user-supplied DIN signal to the on-board DIN pad.

JU4

2-3*

MAX5535 DIN signal connected to on-board microcontroller.

1-2

REFIN = 2.5V from the on-board external reference (MAX6126) for all external reference parts only.

2-3

REFIN = VDD for external reference parts only.

JU5

Open*

Default state for all internal reference parts with a REFOUT pin. Measure REFOUT at pin 2 of JU5.

Note: For external reference parts, connect a 0V to VDD reference voltage to pin 2 of JU5.

1-2*

Normal operation.

JU6

Open

Measure the MAX5535 supply current by putting a current meter in series with the jumper.

*

Default position.