Datasheet

MAX9867 Evaluation Kit
Evaluates: MAX9867
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File Menu
Select the Save Configuration menu item to save the
current EV kit configuration to a text file that can be
loaded at a later time. Select Load Configuration to
reload settings from a saved file.
Select Exit to exit the application.
View Menu
Select the Show Test Mode Registers menu item to
display or hide the MAX9867 trim registers and test reg-
isters tab sheets.
Select Show CS8427 Registers to display or hide the
CS8427 tab to change the digital audio transceiver reg-
isters.
Options Menu
Select the Power On Reset menu item to reset the
MAX9867 to its power-on state. Select Read Status to
read the MAX9867 status registers. Select Auto Read
Status to enable the automatic read of the MAX9867 sta-
tus registers. Select Auto Connect to automatically set
up the connection between the EV kit and the software
application in case the connection is lost.
Tools Menu
Select the Reconnect to EVKIT menu item to set up the
connection between the EV kit and the software applica-
tion.
Select Debug Mode to bring up the Maxim Command
Module Interface window. The interface allows I
2
C oper-
ations, such as read byte and write byte, to be executed.
Uncheck the Auto Read Status menu item before using
the command module interface. The I
2
C dialog boxes
accept numeric data in binary, decimal, or hexadecimal.
Hexadecimal numbers should be prefixed by $ or 0x.
Binary numbers must be exactly eight digits. See Figure
2 for an example of this control method.
Help Menu
Select the Help menu item for information about the
software.
Clock and Digital Audio Tab
The Clock and Digital Audio tab sheet (Figure 1)
contains the master clock (MCLK) and digital audio
interface selections for the MAX9867. A user can select
an automatic typical interface configuration or manually
configure the device according to specific requirements.
DAC and Headphone Outputs Tab
The DAC and Headphone Outputs tab sheet (Figure 3)
includes the DAC enable and gain controls. It also includes
the headphone output mute, level, and mode controls.
AUX and Jacksense Tab
The AUX and Jacksense tab sheet (Figure 4) includes
the measurement control of an AUX input. It also includes
the jack detection controls. Do not use the DC-voltage
measurement and jack detection at the same time.
Mic and Line Inputs Tab
The Mic and Line Inputs tab sheet (Figure 5) includes
the microphone and the line input controls.
ADC and Sidetone Tab
The ADC and Sidetone tab sheet (Figure 6) includes
the controls for the ADC and the sidetone circuitry on
the MAX9867.
Filters Tab
The Filters tab sheet (Figure 7) controls the functionality
of the DAC and ADC filters on the MAX9867.
Registers 1 and Registers 2 Tabs
The Registers 1 tab sheet (Figure 8) and the Registers 2
tab sheet (Figure 9) list all of the MAX9867 registers. To
change a register value, type in the new value in the appro-
priate edit box and press the Enter key on the keyboard, or
click the bit names on the GUI.
CS8427 Tab
The CS8427 tab sheet (Figure 10) displays the EV kit-
related CS8427 register values on one page. To change
a register value, type in the new value in the appropriate
edit box and press the Enter key on the keyboard, or
click the bit names on the GUI.