Datasheet

MAX97001 Evaluation Kit
Evaluates: MAX97001
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operation, or a pair of differential audio inputs for mono
operation. The single-ended input signals for the speak-
er and headphones are defined as IN_1 (left) and IN_2
(right). In the Input Configuration group box, select
Stereo (S/E) for single-ended stereo operation or Mono
(DIF) for differential mono operation. Depending on the
selection, the speaker and headphone mixers provide
options for selecting the audio source for the SPKR
Mixer, Left HP Mixer, and Right HP Mixer.
Speaker Amplifier
The MAX97001 EV kit software’s Speaker Amplifier
group box contains the speaker mixer, speaker volume,
and speaker-enable control. Check the Speaker Enable
checkbox to enable the speaker amplifier. The Speaker
Volume track bar sets the speaker volume between
-30dB (min) to +20dB (max). Alternatively, the user can
enter a numerical value inside the Speaker Volume edit box.
Headphone Amplifier
The Headphone Amplifier group box enables or dis-
ables the headphone outputs. The Left Headphone
Volume and Right Headphone Volume track bars set
the headphone volume. The Left HP Enable and Right
HP Enable checkboxes enable the headphone amplifiers.
The Left Headphone Volume and Right Headphone
Volume track bars set the left and right headphone
volume, respectively, to between -64dB (min) to +6dB
(max). Alternatively, the user can enter a numerical
value inside the Left Headphone Volume and Right
Headphone Volume edit boxes.
I
2
C Interface Indicator
The MAX97001 EV kit software Interface group box dis-
plays the MAX97001’s I
2
C Device Address, Register
Address, and the last Data Sent. The MAX97001 I
2
C
device address is internally set to 0x9A.
Simple I
2
C Commands
There are three methods for communicating with the
MAX97001 EV kit, through the Main Control tab (Figure
1), the Registers tab (Figure 2), or by using low-level
SMBusK commands available in the Advanced User
Interface window (Figure 3). Select the Options | Interface
(Advanced User Interface) menu item to display the
Advanced User Interface window that allows I
2
C opera-
tions, such as SMBusReadByte and SMBusWriteByte.
Figure 3. Advanced User Interface Window (2-Wire Interface Tab)
SMBus is a trademark of Intel Corp.