2021 Microchip Technology Inc. DS00003118C-Page 4
AN3118
2.0 MULTI-SPEAKER SOLUTION
The Multi-Speaker (MSPK) Bluetooth Audio solution
utilizes Microchip proprietary technology to connect a
central speaker to one or multiple peripheral speakers
through a modified Bluetooth protocol. Multi-Speaker
functionality is implemented using Microchip’s
IS2083BM device. One (central) speaker can be
connected to a Bluetooth-enabled device (such as a
smartphone, tablet or laptop). A central/speaker can be
connected to a device (phone or tablet), over Bluetooth
or AUX-in jack or built-in microphone, and re-transmit
either of the two audio sources to one or more
speakers acting as a peripheral.
Multi-Speaker solutions can be achieved using
IS2083BM devices, which allow for extended range.
This is a widely used technology for applications such
as PA conference systems or wireless audio
throughout indoor or outdoor.
Multi-Speaker can be provisioned to Concert mode
(one central speaker with one or more peripheral
speakers) or in Stereo mode (a left-channel and a right-
channel speaker). For more details, refer to “MSPK
Demo Setup” and “Firmware Capabilities/
Features”.
Figure 1 illustrates a typical Concert mode application
where the central is connected to a Bluetooth-enabled
device.
FIGURE 1: CONCERT MODE: CENTRAL IS CONNECTED TO BLUETOOTH ENABLED DEVICE
OVER BLUETOOTH
Smartphone or Tablet
IS2083BM
Central
Speaker
IS2083BM
Peripheral
Speaker
IS2083BM
Peripheral
Speaker
IS2083BM
Peripheral
Speaker
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