AK4381VT

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

Data Acquisition is the means of collecting digital and analog data from physical systems or remote sensors for the purpose of analysis. Digital to Analog Converters (DAC) are frequently used for this purpose to convert signal from a digital value to an analog output. The AKM AK4381VT is a high-performance, ultra-low-power 16-bit stereo DAC, suitable for use in a variety of different application fields and providing various features. This paper will outline the application fields, features and working principle of the AKM AK4381VT.

Application Fields

The AKM AK4381VT is capable of supporting a variety of application fields where digital audio data must be transformed into analog signals, including home theater systems, automotive audio systems, AV receivers, and many others. The integrated hardware-based mechanisms, such as high-resolution 32-bit internal data paths and sample rate converters provide a number of advantages over other solutions, including improved dynamic range and reduced noise floor. Additionally, the sophisticated circuitry of the AK4381VT is optimized for high-resolution PCM, Dolby Digital and DTS formats, making it capable of delivering an advanced level of performance for multimedia applications.

Features

The AKM AK4381VT offers a number of unique features. It is capable of sampling up to 32-bit resolution and supports multiple sampling rates, including 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz and DTS. Additionally, the device is capable of generating both stereo and 3-channel surround sound, making it capable of delivering high-fidelity sound for multimedia applications. Moreover, the hardware-based sample rate conversion provides ultra-low noise operation, allowing the AK4381VT to operate independently of the system\'s sampling rate. Moreover, the device offers an integrated headphone amplifier, allowing it to be used with headphones or other audio systems with an amplifier.

Working Principle

The AKM AK4381VT is based on a Direct Digital Synthesis (DDS) architecture, which allows direct conversion of digital audio data into analog signals without the need for a Digital-to-Analog Converter (DAC). DDS technology works by generating a digital signal that is proportional to the desired analog signal. This signal is then filtered using a Digital Low Pass Filter (DLPF) to remove unwanted harmonic components and convert the signal into an approximated analog output. The DLPF is calibrated by adjusting the coefficients according to the desired high and low pass cutoff frequencies, as well as the desired roll-off rate.

The AKM AK4381VT also integrates a soft-mute function and a noise-shaping circuit, which are responsible for reducing audio-noise and dynamic range issues. Finally, the built-in headphone amplifier delivers a powerful, high-quality audio experience for the listener. The amplifier is capable of providing a low-noise, distortion-free signal, with a maximum output power of 2W.

Conclusion

The AKM AK4381VT is a high-performance, ultra-low-power 16-bit stereo DAC offering a wide range of features for multimedia applications. It supports multiple sampling rates and a variety of formats, including PCM, Dolby Digital and DTS. Additionally, the device integrates both a hardware-based sample rate converter and a hardware-based DLPF to provide superior audio quality. Finally, the built-in headphone amplifier allows the device to be used with headphones or other audio systems.

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