MAX9867 Evaluation Kit
Evaluates: MAX9867
12) Visit www.maximintegrated.com/evkitsoftware to
download the latest version of the EV kit software,
MAX9867EVSwSetupVx.x.ZIP.
Quick Start
Recommended Equipment
MAX9867 EV kit (USB A-to-mini-B cable included)
•
•
13) Install the MAX9867 evaluation software on your com-
puter by running the MAX9867EVSwSetupVx.x.exe
program. The program files are copied and icons
are created in the Windows Start menu.
User-supplied Windows 7 or Windows 8 PC with a
spare USB port
•
•
•
Pair of headphones (16I or greater)
14) Connect the USB cable from the PC to the EV kit
board. A New Hardware Found window pops up
when installing the USB driver for the first time.
If a window is not seen that is similar to the one
described above after 30s, remove the USB cable
from the board and reconnect it. Administrator privi-
leges are required to install the USB device driver
on Windows.
Two single-ended analog audio sources
Digital audio equipment with two TOSLINK optical
cables
Refer to the MAX9867 IC data sheet while using this EV
kit for detailed descriptions of the codec’s features.
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 under-
lined refers to items from the Windows operating system.
15) Follow the directions of the Found New Hardware
window to install the USB device driver. Manually
specify the location of the device driver to be
C:\Program Files\Maxim Integrated\MAX9867
(default installation directory) using the Browse but-
ton. During device driver installation, Windows may
show a warning message indicating that the device
driver Maxim uses does not contain a digital signa-
ture. This is not an error condition and it is safe to
proceed with installation. Refer to the USB_Driver_
Help.PDF document included with the software for
additional information.
Procedure
The MAX9867 EV kit is fully assembled and tested.
Follow the steps below to verify board operation before
exercising the full features of the MAX9867:
1) Verify that all the jumpers are set in their default
positions, as shown in Table 1.
2) Connect one TOSLINK optical cable between the
digital audio equipment input and the J5 module on
the EV kit board.
3) Connect the other TOSLINK optical cable between
the digital audio equipment output and the J6 mod-
ule on the EV kit board.
16) Start the MAX9867 EV kit software by opening its
icon in the Start | Programs | Maxim Integrated |
MAX9867 menu.
4) Connect one analog audio source to the MICLP
and MICLN pads on the EV kit board. Connect the
MICLN pad to GND for single-ended microphone
input.
17) The EV kit software main window appears, as shown
in Figure 1. Verify that the message MAX9867:
Connected is displayed on the status bar at the bot-
tom of the software’s main window.
5) Connect the other analog audio source to the MICRP
and MICRN pads on the EV kit board. Connect the
MICRN to GND for single-ended microphone input.
18) In the Clock Configuration group box, press the
Configure button.
19) In the MCLK Sources group box, click on the
Recovered Master Clock radio button.
6) Connect one analog audio source to the J1 RCA
jack on the EV kit board.
20) Click on the DAC and Headphone Outputs tab.
In the Headphone Output Mode drop-down list,
select Stereo OCL.
7) Connect the other analog audio source to the J2
RCA jack on the EV kit board.
8) Connect the headphone to the J4 headphone jack
on the EV kit board.
21) Click on the Mic and Line Inputs tab. In the Line
Inputs group box, check the Enable Left Line In,
Enable Right Line In, Mute Left Line In, and Mute
Right Line In checkboxes. Muting the input does
not prevent the input from routing to the ADCs.
9) Set the digital audio equipment audio output and
input sampling frequency to 48kHz.
10) Enable the digital audio equipment input and output.
11) Enable the analog audio sources.
22) Click on the Filters tab. In the Codec Filtering
Mode drop-down list, select Audio (FIR).
4
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