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General Description
The MAX98366 evaluation system (EV system) is a fully
assembled and tested system that evaluates the
MAX98366A/B/C/D mono Class-D audio amplifier with
ultrasound support. The EV system consists of a
MAX98366 Development Board (DEV board), an 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. MAX98366A and
MAX98366C support the standard I
MAX98366B and MAX98366D support standard left-
justified mode. All MAX98366 variants support an 8-
channel TDM digital audio interface.
The AUDINT3 board provides a USB-to-PCM interface
and a 1.8V VDD supply needed to evaluate the DEV
board. The MAX98366 DEV board requires one additional
supply input, 3V to 15V (PVDD) when evaluating using the
AUDINT3 board.
Figure 1
AUDINT3 board.
EV System Photo
Figure 1. MAX98366 Evaluation System
319-101051; Rev 0; 3/24
O n e A n a l o g W a y , W i l m i n g t o n , M A 0 1 8 8 7 - 2 3 5 6 , U . S . A .
MAX98366 Evaluation System
Evaluates: MAX98366A/MAX98366B/MAX98366C/MAX98366D
2
S interface, and
details the DEV board and the
Evaluation Board User Guide
Features
Simple Plug-and-Play Design—No I
Programming Required
Wide Amplifier Supply Range (3V to 15V)
Wideband Filters for Sample Rates ≥ 50kHz, Enabling
Ultrasound Applications
Sample Rates of 8kHz to 192kHz
2
I
S, Left-Justified, or TDM Input
Five Selectable Gains (9.5dB, 12.5dB, 15.5dB,
18.5dB, and 21.5dB)
Audio Channel Select (Left, Right, and Mono Mix)
Filter Less Operation
Low EMI
Complete Hardware System with Easy Setup;
No Tools or Special Software Required
EV System Contents
MAX98366 Development Board
Audio Interface Board III (AUDINT3)
Micro-USB Cable
Ordering Information
DOCUMENT FEEDBACK
T e l : 7 8 1 . 3 2 9 . 4 7 0 0
© 2 0 2 4 A n a l o g D e v i c e s , I n c . A l l r i g h t s r e s e r v e d .
2
C Register
appears at end of data sheet.
TECHNICAL SUPPORT

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Summary of Contents for Analog Devices MAX98366 Series

  • Page 1 Evaluation Board User Guide MAX98366 Evaluation System Evaluates: MAX98366A/MAX98366B/MAX98366C/MAX98366D Features General Description • Simple Plug-and-Play Design—No I C Register The MAX98366 evaluation system (EV system) is a fully Programming Required assembled and tested system that evaluates the • Wide Amplifier Supply Range (3V to 15V) MAX98366A/B/C/D mono Class-D audio amplifier with •...
  • Page 2: Quick Start

    MAX98366 Evaluation System Evaluation Board User Guide Quick Start Note: In the following sections, text in bold and underlined refers to items from the Windows operating system. Required Equipment • MAX98366 EV System • MAX98366 Development Board (DEV Board) • Audio Interface Board III (AUDINT3 Board) •...
  • Page 3: Power Supplies

    MAX98366 Evaluation System Evaluation Board User Guide Figure 2. AUDINT3 as Playback Device Detailed Description of Hardware The MAX98366 EV system is designed to thoroughly evaluate the MAX98366 digital input Class-D audio amplifier IC. The EV system includes the MAX98366 Development Board (DEV board), the Audio Interface Board III (AUDINT3), and a micro-USB cable.
  • Page 4: Jumper Selection

    MAX98366 Evaluation System Evaluation Board User Guide Jumper Selection ENABLE/DISABLE Selection (Shutdown Mode) The DEV board includes header J6 for device enable. The MAX98366 device features a low-power shutdown mode that is activated by setting the J6 shunt in the “DISABLE” position. To exit shutdown mode, place the J6 shunt in the “ENABLE” position.
  • Page 5 MAX98366 Evaluation System Evaluation Board User Guide Figure 3. DAI Configuration A (Left-Channel for I 2 S/Left-Justified Operation) Channel Selection (TDM Mode) In TDM mode, the MAX98366 has a fixed gain of 21.5dB and the GAIN_SLOT pin becomes repurposed for TDM channel selection.
  • Page 6: Speaker Output

    MAX98366 Evaluation System Evaluation Board User Guide DAI Header The DAI header J2 provides access to MAX98366’s PCM bus (BCLK, LRCLK, and DIN). This DAI header facilitates evaluation with audio equipment I/O. See Table 7 for the pinout of the DAI header. Figure 4 shows a close-up image of the MAX98366 DAI interface header (J2) to be used if connecting external DAI inputs, such as those provided by Audio...
  • Page 7: Ordering Information

    MAX98366 Evaluation System Evaluation Board User Guide Audio Interface Board III The Audio Interface Board III (AUDINT3) facilitates the evaluation of the DEV board by providing a set of features that can be used to exercise the capabilities of the DEV board without the need for additional audio equipment. The main components of the AUDINT3 board are its LDO supply voltages and its USB-to-PCM interface.
  • Page 8 5007 Keystone Electronics Test Point / Compact / White TP15 5010 Keystone Electronics Test Point / Multi-Purpose / Red 15V Plug-and-Play Class-D MAX98366AEWC+ Analog Devices Amp with Ultrasound DO NOT PURCHASE OR POPULATE ITEM DESIGNATOR MANUFACTURER PN MANUFACTURER VALUE DESCRIPTION...
  • Page 9 MAX98366 Evaluation System Evaluation Board User Guide MAX98366 DEV Board Schematic DAI0 DAI1 DAI2 analog.com Rev 0 9 of 13...
  • Page 10 MAX98366 Evaluation System Evaluation Board User Guide MAX98366 DEV Board PCB Layout MAX98366 DEV Board PCB Layout—Top Silkscreen MAX98366 DEV Board PCB Layout—Layer 2 MAX98366 DEV Board PCB Layout—Top Layer MAX98366 DEV Board PCB Layout—Layer 3 analog.com Rev 0 10 of 13...
  • Page 11 MAX98366 Evaluation System Evaluation Board User Guide MAX98366 DEV Board PCB Layout (continued) MAX98366 DEV Board PCB Layout—Bottom Layer MAX98366 DEV Board PCB Layout—Bottom Silkscreen analog.com Rev 0 11 of 13...
  • Page 12: Revision History

    MAX98366 Evaluation System Evaluation Board User Guide Revision History REVISION REVISION PAGES DESCRIPTION NUMBER DATE CHANGED 3/24 Initial release — analog.com Rev 0 12 of 13...
  • Page 13 System Notes ASSUMED BY ANALOG DEVICES FOR ITS USE, NOR FOR ANY INFRINGEMENTS OF PATENTS OR OTHER RIGHTS OF THIRD PARTIES THAT MAY RESULT FROM ITS USE. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE. NO LICENCE, EITHER EXPRESSED OR IMPLIED, IS GRANTED UNDER ANY ADI PATENT RIGHT, COPYRIGHT, MASK WORK RIGHT, OR ANY OTHER ADI INTELLECTUAL PROPERTY RIGHT RELATING TO ANY COMBINATION, MACHINE, OR PROCESS WHICH ADI PRODUCTS ALL INFORMATION CONTAINED HEREIN IS PROVIDED “AS IS”...

This manual is also suitable for:

Max98366aMax98366bMax98366cMax98366d