Evaluates: MAX98361 (WLP)
MAX98361 Evaluation System
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General Description
The MAX98361 evaluation system (EV system) is a
fully assembled and tested system that evaluates the
MAX98361A/B/C/D mono Class-D audio amplifiers.
The EV system consist of a MAX98361 Development
Board (DEV board), Maxim’s Audio Interface Board III
(AUDINT3), and a USB cable.
It is recommended that the DEV board be evaluated with
the AUDINT3 board, as an EV system. MAX98361A and
MAX98361C support the standard I
2
S interface, and
MAX98361B and MAX98361D support standard left-
justified mode. All MAX98361 variants support an
8-channel TDM digital audio interface.
The AUDINT3 board provides the USB-to-PCM interface
in addition to the 1.8V V
DDIO
supply needed to evaluate
the DEV board. The MAX98361 DEV board requires one
additional supply input, 2.5V to 5.5V (V
DD
) when evaluat-
ing using the AUDINT3 board.
board and the AUDINT3 board.
319-100890; Rev 0; 2/22
Features
●
2.5V to 5.5V Single-Supply Operation
●
I
2
S, Left-Justified, or TDM Input
●
Five Selectable Gains (-3dB, 3dB, 6dB, 9dB, and
12dB)
●
Audio Channel Select (Left, Right, and Mono Mix)
●
Filterless Operation
●
Low EMI
●
Complete Hardware System with Easy Setup, No
Tools or Special Software Required
EV System Contents
●
MAX98361 Development Board
●
Audio Interface Board III
●
Micro-USB Cable
Figure 1. Simplified EV System Block Diagram
J2
AUDIO INTERFACE BOARD 3
USB
INTERFACE
MAX98361 DEVELOPMENT BOARD
J1
U1
FOUTN
GND
FOUTP
MAX98361
VIN
J1
D1
S2
BCLK
SW1
S1
S3
LRCLK
DIN
VDDIO
GND
EN
J4
ON
OFF
DA
I_A
DA
I_B
DA
I_C
J3
J6
J7
J8
GAIN
J5
VDD
DA
I
GND
