WM8569SEDS/V

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The WM8569SEDS/V integrated audio family is a multi-standard CODEC designed for applications demanding from mobile phones to IoT devices in the consumer, automotive and industrial audio markets. It is equipped with low power devices and is ideal for portable applications, offering combined microphone, Line-In and FM radio I/O.

The WM8569SEDS/V provides the necessary features and performance to ensure reliability and accuracy in the high-sensitivity audio recording and playback of voice and music signals, while still consuming very low power and requires a small footprint. The CODEC is integrated with various audio functions such as dual channel ADC and DAC, headphone driver, volume control, sampling rate converter, stereo gain control, integrated audio filters and multi-band limiter/soft clipper.

The application fields of the WM8569SEDS/V offer a range of interfaces, such as I2S and TDM, for robust user control and compatibility in audio applications. It also supports a wide range of sample rates up to 32k-192k for audio playback and recording to ensure CD-quality lossless audio transmission.

Working Principle

The WM8569SEDS/V utilizes Sigma-Delta modulation, a type of digital noise shaping, for audio signal digitization. Sigma-Delta modulation is mainly used for analog-to-digital conversion and is an efficient way to modulate an input signal into a data stream that is compatible with a digital signal processor (DSP). This makes it ideal for use in consumer electronics and other applications requiring low-frequency signals, as it yields a signal-to-noise ratio (SNR) significantly higher than that which can be achieved with the oversampling analog-to-digital converter (ADC).

In the WM8569SEDS/V, sigma-delta modulation is used to convert the analog signal received at the microphone input or line in jack into a digital signal suitable for processing. This signal is then split into its component frequency bands, each of which is filtered by a low-pass filter. The filtered signals are then sent to the ADC, where they are digitized. The digitized signal is then sent to the DAC, where it is processed and converted back into an analog signal. This signal is then amplified and sent to the speaker or the headphone jack.

The WM8569SEDS/V also features a built-in hardware-assisted automatic gain control (AGC) with two adjustable parameters—dynamics and singal-to-noise ratio (SNR)—to ensure that the output signal is always output at the highest possible level without excessive levels of noise or distortion. The AGC feature can be used together with other audio effects and filters, giving audio designers complete control over the sound produced by their systems.

The WM8569SEDS/V also features an integrated stereo line-in for recording audio from external sources such as microphones, direct line-level stereo signals, or analog FM radio receivers. The line-in can also be used for supplying a signal to an external headphone amplifier, allowing for accurate reproduction of low-level signals.

Conclusion

The WM8569SEDS/V integrated audio family is a powerful and versatile CODEC that is ideal for a wide variety of low power applications. It offers integrated features such as dual channel ADC and DAC, headphone driver, volume control, sampling rate converter, stereo gain control and integrated audio filters, as well as a range of interfaces including I2S and TDM. In addition, the device is equipped with a built-in hardware-assisted automatic gain control (AGC) feature, with two adjustable parameters—dynamics and SNR—for ensuring optimal audio output quality, as well as an integrated stereo line-in for recording external audio sources.

The specific data is subject to PDF, and the above content is for reference