AK4393VF Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	DAC, Audio
Number of Channels:	2
Resolution (Bits):	24 b
Sampling Rate (Per Second):	108k
Data Interface:	I²S
Voltage Supply Source:	Analog and Digital
Voltage - Supply:	3 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	28-LSSOP (0.220", 5.60mm Width)
Supplier Device Package:	28-VSOP
Base Part Number:	AK4393

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Data Acquisition - ADCs/DACs - Special Purpose

The AK4393VF is a specialized high-performance, low-power delta-sigma analog-to-digital converter (ADC) designed for digital-audio applications. Developed by Asahi Kasei, the AK4393VF is a highly configurable, 19-bit converter with low power consumption and a maximum sampling rate of 192 kHz. In this article, we will discuss the application field and working principle of the AK4393VF.The primary application of the AK4393VF is digital audio, such as used in portable music players and professional recording systems. The device features excellent sound quality and low noise due to its high performance Delta-Sigma convertor. It can be used for both professional and consumer applications, such as audio-CD, DAT, DVD, portable music players and microphone preamplifier.The AK4393VF is also used for vibration and sound sensing applications, as it offers higher accuracy and greater resolution than conventional analog-to-digital converters. It is especially useful for detecting subtle changes in audio signals, such as tiny sounds emitted by acoustic instruments. In addition, the AK4393VF can be used for motor control systems, as it can accurately detect minuscule vibrations in the motor shaft.The AK4393VF operates using a multi-stage delta-sigma modulation architecture. The device contains an input amplifier with a single-bit oversampling modulator, a digital filter, a 1-bit gate and a 19-bit A/D converter. The oversampling modulator is responsible for sampling the analog input signal, converting it to a digital signal, and passing it to the digital filter. The digital filter then performs reconstruction of the digital signal, resulting in a high-quality, low-distortion digital audio output.The AK4393VF features an excellent signal-to-noise ratio of 98 dB and a very low power consumption of less than 0.5 mW. It supports various data formats, including I2S, DSD, PCM and USB audio, and can operate in both master and slave modes. It also features an integrated I2C control interface, allowing the user to easily configure and adjust the parameters of the device.The AK4393VF is available in a range of package sizes and is compatible with a wide range of audio applications. It provides excellent sound quality with low distortion and is an ideal choice for a variety of audio-related applications.In summary, the AK4393VF is a specialized high-performance, low-power delta-sigma ADC that is used in a wide range of digital audio applications, such as professional recording systems, acoustic instruments and motor control systems. It features an excellent signal-to-noise ratio and a very low power consumption, as well as an integrated I2C control interface for easy configuration and adjustment.

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