BM83 datasheet(4/76 Pages) MICROCHIP

4 / 76 page

Table of Contents

Introduction.....................................................................................................................................................1

Features......................................................................................................................................................... 2

Quick References....................................................................................................................................6

1.1.

Reference Documentation............................................................................................................6

1.2.

Design Packages......................................................................................................................... 6

1.3.

Acronyms/Abbreviations...............................................................................................................6

Device Overview..................................................................................................................................... 9

2.1.

BM83 Module Pin Diagram.........................................................................................................11

2.2.

BM83 Module Pin Description.................................................................................................... 12

Audio Subsystem.................................................................................................................................. 15

3.1.

Digital Signal Processor............................................................................................................. 15

3.2.

Codec......................................................................................................................................... 16

3.3.

Auxiliary Port.............................................................................................................................. 34

3.4.

Analog Speaker Output.............................................................................................................. 34

3.5.

Microphone Inputs......................................................................................................................35

Bluetooth Transceiver........................................................................................................................... 36

4.1.

Transmitter................................................................................................................................. 36

4.2.

Receiver..................................................................................................................................... 36

4.3.

Synthesizer.................................................................................................................................36

4.4.

Modulator-Demodulator...........................................................................................................36

4.5.

Adaptive Frequency Hopping .................................................................................................... 36

Power Management Unit.......................................................................................................................37

5.1.

Power Supply............................................................................................................................. 37

5.2.

SAR ADC................................................................................................................................... 38

5.3.

LED Drivers................................................................................................................................ 40

Application Information..........................................................................................................................41

6.1.

Power On/Off Sequence............................................................................................................ 41

6.2.

Reset.......................................................................................................................................... 42

6.3.

Configuring and Programming .................................................................................................. 43

6.4.

General Purpose I/O Pins.......................................................................................................... 44

6.5.

I2S Interface............................................................................................................................... 45

6.6.

Host MCU Interface Over UART................................................................................................ 46

PCB Antenna Information..................................................................................................................... 50

7.1.

Antenna Radiation Pattern......................................................................................................... 50

7.2.

Module Placement Guidelines....................................................................................................53

Physical Dimensions............................................................................................................................. 55

Electrical Specifications........................................................................................................................ 57

9.1.

Timing Specifications..................................................................................................................62

BM83

Datasheet

DS70005402C-page 4

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