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Soundbar with Bluetooth Streaming

Overview

A soundbar, also called a speaker bar, is a special speaker with multiple drivers and is usually put above a computer monitor or under a television or home theater screen. It can significantly improve the sound experience without the complexity of surround sound speakers, wiring, etc. The Soundbar with Bluetooth Streaming design is meant to be compact, generate premium sound, and can be cost-effective.

System Benefits:

  • Cost-effective, small-capacity ROM and low pin count 32-bit MCU
  • High performance power includes voltage supervisors, dual buck regulators and a wide VIN 1A buck regulator

Block Diagram

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Template 1Connector Line.56Connector Arrow.44Connector Arrow.36Connector Arrow.23Connector Arrow.33BuckBuck RegulatorBuck RegulatorConnector ArrowConnector Arrow.10Connector Arrow.11Connector Arrow.12Connector Arrow.13Connector Arrow.15Connector Arrow.16Bluetooth Stereo Audio ModuleBluetooth Stereo Audio ModuleBluetooth Stereo Audio Module24bit Audio ADC24bit Audio ADC24bit Audio ADCConnector Arrow.19Connector Arrow.20Connector Arrow.24Connector Arrow.34Connector Arrow.373.3V3.3V3.3V3.3V.393.3V3.3V5V5V5VConnector Line3.3V.423.3V3.3VConnector Arrow.50Bi-directional3.3V.543.3V3.3V3.3V.553.3V3.3V+ HV (<24Vdc)+ HV (<24Vdc)+ HV (<24Vdc)Connector Line.583.3V.595V5V3.3V.603.3V3.3V1.8V1.8V1.8V5V.625V5VH-Bridge Power MOSFET2x H-Bridge Power MOSFET2x H-Bridge Power MOSFETConnector Arrow.65+ HV+ HV+ HVConnector Arrow.67TriangleTriangle.73Connector Arrow.74Connector Arrow.76Connector Arrow.77Connector 2Connector Line.79Speakerspeaker_8_Sheet.82Sheet.83Sheet.84Sheet.85Vertical Wire BundleLabel Text 10pt.104622Sheet.88Vertical Wire Bundle.89Label Text 10pt.104622Sheet.915V.925V5VConnector Line.93Buck RegulatorBuck RegulatorBuck RegulatorVoltage SupervisorVoltage SupervisorVoltage SupervisorAnalog SwitchAnalog SwitchAnalog SwitchEEPROMEEPROMEEPROMSheet.53MCUMCUMCURSTRSTRSTDACDACDACSCISCISCIGPIOGPIOGPIOI2CI2CI2CAudio ProcessorAudio ProcessorAudio ProcessorI2C.35I2CI2CMCLKMCLKMCLKI2C.47I2CI2CPCMPCMPCMPWMPWMPWMUS061US061US061

Buck Regulator

Buck Regulators (Integrated FETs)

Buck Regulator

Buck Regulators (Integrated FETs)

Voltage Supervisor

Voltage Supervisor & Reset ICs

MCU

RX 32-Bit Performance/Efficiency MCUs

Analog Switch

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