W681388DG TR

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The W681388DG product is an audio CODEC (Chief Operating Device) with integrated audio digital signal processor, efficiently converting high-resolution digital audio into analog equivalents. This single device can bring high-quality audio technology to portable communications and multimedia platforms for gaming and entertainment. The W681388DG application field and working principle are described in this article.

Application Field

The W681388DG is the perfect choice for portable consumer products such as gaming and entertainment technologies as well as provide a single package CODEC solution for even home multimedia applications. The device can enable high definition audio technology on portable consumer audio designs and provides a more demanding and reliable experience.

The device can offer support for a variety of audio formats, including 24-bit I2S and 24-bit PCM interface. It also supports setup of many audio specifications including sample rate, stereo-image, master volume control and audio effect, to meet different kinds of audio system requirement.

By enabling advanced mixing capability, the W681388DG also allows mixing of up to 5 stereo-image with individual/combined gain control. The built-in 3D enhancer, Dynamic Bass Enhancer, provides excellent audio effect while listening to music or gaming. In addition, the device can reproduce vivid crisp audio from compressed audio through a built-in Dolby Digital and Dolby Pro Logic II decoder.

Working Principle

The W681388DG CODEC comprises of a DSP-based audio system architecture, consisting of an input audio interface, signal generator, signal processor, volume control, and output audio interface. An input signal is first passed to the signal generator, where it is up sampled and filtered. The signal output is then passed to the signal processor and via the volume control to generate a signal output.

The signal processor consists of digital filters, pre/de-emphasis and other signal processing components. It works by sampling the input signal and filtering it according to the user-defined parameters. The processor then applies gain reduction and/or signal enhancement to the signal and passes it through the volume control for attenuation accuracy.

In addition, the W681388DG supports digital signal processing techniques such as EQ, Dolby digital and Dolby Pro Logic II to modify the sound characteristics. It also supports multi-channel surround sound up to 5.1 channels as well as stereo down-mixing. With its with sophisticated audio algorithms and effective signal processing, the device can deliver great audio quality in both clear and dynamic audio output.

In conclusion, the W681388DG is an integrated audio CODEC with integrated audio digital signal processor. It can efficiently convert high-resolution digital audio into analog equivalents while including many features to support gaming and entertainment audio technologies. With its sophisticated audio algorithms and effective signal processing, the product can be used to deliver high-quality audio technology in the right application.

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