Analog Devices / Maxim Integrated MAXREFDES182 Board

Analog Devices MAXREFDES182 Board is a fully assembled and tested surface-mount printed circuit board (PCB) that supports an integrated power line communication (PLC) and charging system. The PLC and charging system are utilized in applications such as true wireless stereo (TWS) headsets. Furthermore, a MAX20355 is the primary IC in the charging case, while the MAX20357 is the secondary IC in the earbud. Analog Devices MAXREFDES182 Board includes an integrated I²C interface and USB Micro-B cable. MS Windows^®-based graphical user interface (GUI) software is available for use with the MAXREFDES182, requiring a Windows 7 or newer operating system.

Features

System solution for charging and data transfer over a single contact
Insertion/removal detection
Various PLC commands

Autonomous charging with headroom control
Mailbox data transfer
Moisture detection

Applications

True wireless stereo (TWS) headphones
Augmented reality glasses
Wearable devices

Required Equipment

MAXREFDES182 evaluation kit
Adjustable DC power supply
USB type-C cable (optional, used to power up from the MAX8971)
1-cell Li-ion battery with protection or battery simulator

Oscilloscope
Voltmeters
Ammeters
USB Micro-B cable
PC with Windows 7 or newer operating system and USB port

Analog Devices / Maxim Integrated MAXREFDES182 Board

Features

Applications

Required Equipment

Overview

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