AK5385AVF

Series:	*
Part Status:	Obsolete

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AK5385AVF Application Field and Working Principle

The AK5385 is a high-performance digital audio interface IC which is designed for use in a variety of digital audio applications, including low-power portable devices, multimedia devices, and audio-video systems. This audio interface IC integrates a low-pass filter, a Digital Audio Interface (DAI) I/O, and a serial digital interface. It can interface with many codecs such as MP3 player, PCM voice codec, and CD players.

Product Benefits

The AK5385 provides a comprehensive I/O interface solution for mobile devices, including USB, Bluetooth, optical, coaxial, and analog interfaces. This enables a variety of device and system designs. The built-in IC gives design engineers more flexibility to customize their device application and reduce design risks. The built-in low-pass filter helps to reduce the power consumption of the device, reduce the noise, and produce a clear audio sound.

Availability

The AK5385 is available in two variations: ADGB and AVF. The AVF version is suitable for applications, including Bluetooth and streaming players. It also has a few added features like power management, audio codec bypass, and serial peripheral interface features. The IC can be ordered directly from AKM company.

Application Fields

Applications such as audio/visual systems, portable digital music players, mobile phone, and tablet PCs are the perfect platform for the AK5385. It can be used in applications that require interfacing with digital audio sources, including mobile phones, media players, digital cameras, and camcorders. The IC is also used in digital television and digital video recorder systems for audio processing; in automotive audio systems for sound quality optimization; and in audio recording equipment such as mixers and digital signal processors.

Working Principle

The AK5385 audio interface works based on a basic concept called time synchronization. Time synchronization is the process of synchronizing two or more independent audio signals. This is achieved by synchronizing the timing of one or more of the signals, usually the clock signal, to a reference clock signal. The idea is to ensure that, even if different signals travel along different pathways with different delays, they remain in alignment with each other when they arrive at their destination.The AK5385 also uses synchronous sample rate conversion to adjust the rate of two digital audio streams separately. This technology allows for side-by-side transfers of two audio streams of different sample rates without dropping or duplicating samples.The AK5385 is designed to support multiple audio formats, including MPEG-1/2/3 audio (MPA and MP2A), AAC and WMA versions 1, 2, and 3. It also supports various bit rates and sample rates, from 8, 16, and 32kHz, up to 48kHz.In conclusion, the AK5385 is a versatile audio interface IC designed to provide advanced performance for a variety of applications. With its low power consumption, integrated LPF, DAI I/O, and serial digital interface, the AK5385 can help create a device with excellent audio performance for a given application.

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