6 Reference Circuit

IS2083BM application circuit includes two modes – Host mode and Embedded mode.

In Host mode, IS2083BM interfaces with an external microcontroller (MCU) for application-specific system control, where the Multi-speaker (MSPK) solution can reside on this MCU.

For Embedded mode, the MSPK firmware is natively integrated on the module. Simple system control can be implemented in the module MCU by using the SDK or changing the parameters in the UI configuration tool. DSP parameters, such as equalizer settings, can be set using the configuration tool.

The following figure illustrates the Host mode reference circuit, where IS2083BM interfaces with MCU PIC32MX450F256L and Digital Audio AMP STA369TW for Bluetooth speaker application.

Figure 6-1. IS2083BM Host Mode Bluetooth Speaker Reference Circuit Block Diagram
Figure 6-2. IS2083BM Host Mode Reference Schematics
Figure 6-3. I2083BM Host Mode Reference Schematic - continued.
Figure 6-4. I2083BM Host Mode Reference Schematic - continued.
Figure 6-5. I2083BM Host Mode Reference Schematic - continued.
Figure 6-6. I2083BM Host Mode Reference Schematic - continued.
The following figure illustrates the IS2083BM Embedded mode reference circuit.
Figure 6-7. IS2083BM Embedded Mode Bluetooth Speaker Reference Circuit Block Diagram
Figure 6-8. IS2083BM Embedded Mode Reference Schematic
Figure 6-9. IS2083BM Embedded Mode Reference Schematic - continued.
Figure 6-10. IS2083BM Embedded Mode Reference Schematic - continued.