BM83 datasheet(34/74 Pages) MICROCHIP

부품명	BM83

상세설명	BM83 Bluetooth짰 Stereo Audio Module Data Sheet

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3.3

Auxiliary Port

The BM83 module supports one analog (Line-In, also called as Aux-In) signal from the external audio source. The

analog (Line-In) signal can be processed by the DSP to generate different sound effects (MB-DRC and AW), which

can be configured by using the Config Tool.

3.4

Analog Speaker Output

The BM83 module supports the following analog speaker output modes:

• Capless mode – recommended for headphone applications in which capless output connection helps to save

the Bill of Materials (BOM) cost by avoiding a large DC blocking capacitor. The following figure illustrates the

analog speaker output in Capless mode.

Figure 3-30. Analog Speaker Output - Capless Mode

AOHPR

AOHPL

AOHPM

BM83

16/32 Speaker

Ω

• Single-Ended mode – used for driving an external audio amplifier where a DC blocking capacitor is required.

The following figure illustrates the analog speaker output in Single-Ended mode.

Figure 3-31. Analog Speaker Output - Single-Ended Mode

Audio Amplifier

BM83

AOHPR

AOHPL

BM83

Audio Subsystem

Preliminary Datasheet

DS70005402A-page 34

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