BD3486FS-E2

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Base Part Number:	BD3486

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BD3486FS-E2, Audio Special PurposeThe purpose of this article is to discuss the application field and working principle of BD3486FS-E2, an audio special purpose device from ROHM Semiconductor.The BD3486FS-E2 is a versatile audio processor with a range of integrated functions. It is a system on chip solution that integrates multiple components within a single package, reducing overall system complexity and cost.The BD3486FS-E2 is designed to improve audio performance by eliminating unnecessary hardware and enhancing sound quality. The device is capable of processing any loudspeaker or headphone output, and can be used to drive higher levels of accuracy and resolution.Its application field includes home and car audio systems, mobile personal audio devices, and other applications which require good audio performance.The BD3486FS-E2 includes a range of multi-channel audio processing functions, including de-noising, room equalization and effect processing. Its advanced functions include loudness control, digital noise reduction, cross-feed and 3D effect rendering.Combined, these features make the BD3486FS-E2 suitable for a range of audio applications, from studio-grade and professional audio systems to more casual settings that require great sound quality.The working principle of the BD3486FS-E2 comprises two main components: the power amplifier and the microcontroller. The amplifier is used to drive the loud speakers, while the microcontroller is used for audio processing.The amplifier section of the BD3486FS-E2 can output up to 8W of power, which is distributed by four channels to the respective loudspeakers or headphones. The amplifier’s input can be set between 2.2V and 3.3V, and includes a low noise pre-amplifier to optimize sound quality.The microcontroller included in the BD3486FS-E2 is responsible for audio processing, volume control, and other settings. It has four audio channels, each of which can be set to either mono or stereo. The microcontroller can process a range of audio effects, including echo, virtual surround sound, and wave shaping.In addition to its audio processing features, the microcontroller also contains a 32-bit DSP. This DSP is used for de-noising, cross-feed, and other functions. The microcontroller also integrates a range of peripheral interfaces, including two dedicated I2S ports, four GPIO pins, and a serial port controller.Moreover, the BD3486FS-E2 also includes an integrated oscillator that eliminates the need for an external clock source. This oscillator is used to prevent any unwanted noise and distortion in the audio signal.In summary, the BD3486FS-E2 is capable of providing excellent performance and sound quality for a range of audio applications. Its power amplifier and microcontroller form a versatile and efficient solution for any studio or non-studio environment.

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