MAX9723D Evaluation Kit/Evaluation System

_______________________________________________________________________________________

3

7) Connect a 3.3V power supply between the pads

board.

8) Ensure that the input audio source is turned off.

9) Connect the stereo audio source to the pads

labeled RIN, LIN, and GND on the MAX9723D EV

kit board.

10) Plug the headphones into the 3.5mm headphone

jack on the MAX9723D EV kit board.

11) Turn on the DC power supply.

12) Enable the audio source.

13) Start the MAX9723 program by opening its icon in the

Windows Start menu. Select the device slave

address from the device pulldown menu. See Table 1.

Detailed Description of Software

Device Selection and Slave Address

allows serial communication between the MAX9723

and a microcontroller. The MAX9723 is available with

one of two preset slave addresses (see Table 1). The

MAX9723D EV kit ships with the MAX9723D. Change

IC U1 to evaluate other devices. Samples of other

MAX9723 devices are available through Maxim’s web-

site at www.maxim-ic.com.

The Device pulldown menu allows the user to select

the device slave address. Select the slave address of

the device being evaluated at startup. See Figure 2 for

details.

MAX9723 SLAVE ADDRESS

VERSION

A6

A5

A4

A3

A2

A1

A0

R/

W

MAX9723A

1

0

0

1

1

0

0

X

MAX9723B

1

0

0

1

1

0

1

X

MAX9723C

1

0

0

1

1

0

0

X

MAX9723D*

1

0

0

1

1

0

1

X

*

EV kit IC version.

Table 1. MAX9723 Slave Address

Figure 1. MAX9723D EV Kit Software GUI Window

Figure 2. Device Selection and Slave Address