Datasheet

EVAL-AD1940AZ Preliminary Technical Data
Rev. PrA | Page 4 of 30
SETTING UP THE EVALUATION BOARD
SIGMASTUDIO SOFTWARE INSTALLATION
1. Open the provided .zip file and extract the files to
your PC. Alternately, insert the SigmaStudio CD into the
computer’s optical drive and browse the CD to the SigmaStudio
folder.
2. Install Microsoft .NET Framework ver2.0, if you do
not already have it installed. (Do this by double-clicking
dotnetfx.exe)
3. Install SigmaStudio by double-clicking setup.exe, and
following the prompts. A computer restart is not required.
POWERING THE BOARD
The board is powered by the included 6V DC power supply,
which should be connected to power jack J14. The power
indicator LEDs D3 and D2 should be lit.
HARDWARE SETUP - USBI
4. Plug the USBi into the PC’s USB port using the
included mini USB cable. Plug in the USBi into the control port
J2 on the eval board (marked yellow on Figure 1).
5. Connect the USB cable to your computer, and to the
USBi.
6. When prompted for drivers:
• Choose “Install from a list or a specific location.”
• Choose “Search for the best driver in these locations.”
• Check the box for “Include this location in the search.”
• The USBi driver is located in C:\Program Files\Analog
Devices Inc\Sigma Studio\USB drivers, click Next.
• If prompted to choose driver, select CyUSB.sys
• In XP click Continue Anyway if you are prompted saying the
software hasn’t passed Windows Logo testing.
CONNECTING THE AUDIO CABLES
For this example, we will set up the board to have stereo analog
inputs and stereo analog outputs.
7. Connect the audio source to the ANALOG INPUT
CHANNEL 0-1 jack J15 (marked blue in Figure 1) on the top of
the board, using a 1/8” cable.
8. Connect the ANALOG OUTPUT CHANNEL 0-1 jack
J18 (marked green in Figure 1) to your active speakers or
headphones.
SWITCH AND JUMPER SETTINGS
In order to configure the board for stereo analog in and out,
make sure the switches and jumpers are set as indicated in
Figure 3.
A black rectangle indicates a connected jumper or switch
position.