Evaluate: MAX9723A/MAX9723B/MAX9723C/MAX9723D
MAX9723D Evaluation Kit/Evaluation System
_______________________________________________________________________________________ 7
Power Supply
The MAX9723D EV kit board is powered from a user-
supplied +1.8V to +3.6VDC power supply between the
V
DD
and GND pads.
Hardware- or Software-Shutdown Control
The MAX9723 features a shutdown mode to reduce
power consumption and extend battery life. Shutdown
can be either hardware- or software-controlled. The soft-
ware-controlled shutdown maintains the configuration
set by the user (see the
Powered Up Checkbox and
Close Button
section). Jumper JU3 controls the hard-
ware-shutdown function of the MAX9723D EV kit. Move
jumper JU3 to position 2-3 to shut down the entire
MAX9723 and reset all the registers to their power-on
defaults. See Table 5 for shutdown shunt positions.
User-Supplied I
2
C Interface
Connect SDA, SCL, and GND lines from the user-sup-
plied I
2
C interface to the corresponding pads on the
MAX9723D EV kit board. Install shunts across pins 1-2
of JU1 and JU2 to pull up the SDA and SCL lines.
Remove the jumpers if the bus is already pulled up.
