Datasheet
MAX9268 Evaluation Kit
Evaluates: MAX9268
4 ______________________________________________________________________________________
Quick Start
Required Equipment
• MAX9268 EV kit (USB cable included)
• MAX9249 EV kit (USB cable included)
• 2m Rosenberger cable assembly (included in the
MAX9268 EV kit)
• Data source (such as digital video)
• Optional: I
2
S or S/PDIF audio source
• Optional: Pair of 8I speakers
• Optional: 3.5mm stereo headphones
(16I or greater)
• User-supplied PC with a spare USB port (direct
500mA connection required; do not use a hub)
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and
underlined refers to items from the Windows operating
system.
Procedure
The MAX9268 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Visit www.maxim-ic.com/evkitsoftware to download
the latest version of the EV kit software, 9268Rxx.
ZIP. Save the EV kit software to a temporary folder
and uncompress the ZIP file.
2) Install the EV kit software and USB driver on your
computer by running the INSTALL.EXE program
inside the temporary folder. The program files are
copied to your PC and icons are created in the
Windows Start | Programs menu. During software
installation, some versions of Windows may show
a warning message indicating that this software
is from an unknown publisher. This is not an error
condition and it is safe to proceed with installation.
Administrator privileges are required to install the
USB device driver on Windows.
3) Verify that all jumpers are in their default positions,
as shown in Table 1.
4) Connect the Rosenberger cable from MAX9249 EV
kit connector J1 to MAX9268 EV kit connector J1.
5) Connect the LVDS data source to header H1 of the
MAX9249 EV kit.
6) Optional Audio Demo: Connect the S/PDIF audio
source (e.g., DVD player digital output) to MAX9249
EV kit phono jack J21. Or, connect I
2
S audio source
to header H1 and remove jumper JU210. Connect
speakers to MAX9268 EV kit SPKR_L+/SPKR_L- and
SPKR_R+/SPKR_R- oval pads, or plug headphones
into J206 headphone jack.
7) Connect the USB cable from the PC to the EV kit
board. A Windows message appears when connect-
ing the EV kit board to the PC for the first time. Each
version of Windows has a slightly different message.
If you see a Windows message stating ready to
use then proceed to the next step. Otherwise, open
the USB_Driver_Help_200.PDF document in the
Windows Start | Programs menu to verify the USB
driver was installed successfully.
8) Verify that MAX9249 EV kit LED120 lights up,
indicating that the microcontroller is powered and
enabled.
9) Verify that MAX9268 EV kit LED120 lights up,
indicating that the microcontroller is powered and
enabled.
10) Verify that MAX9268 EV kit LED2 lights up, indicat-
ing that the link has been successfully established.
If LED2 is off or LED1 is on, double-check that
PCLK_IN signal is clocking data.
11) Optional Audio Demo: Press and release switch
SW122 on both of the MAX9249 and MAX9268 EV
kits to enable the S/PDIF-to-I
2
S and I
2
S-to-audio
DAC demonstration circuitry. If I
2
S or S/PDIF audio
was provided to the MAX9249 EV kit, audio should
now be heard from the speakers or headphones
previously connected to the MAX9268 EV kit.
MAX9268 EV Kit Files
FILE DESCRIPTION
INSTALL.EXE Installs the EV kit files on your computer
MAX9268.EXE Application program
CDM20600.EXE Installs the USB device driver
UNINSTALL.EXE Uninstalls the EV kit software
USB_Driver_Help_200.PDF USB driver installation help file