The AKM4555VT is a low-power stereo audio codec with microphone amplifier manufactured by AKM Semiconductor. This IC is designed for portable audio applications such as smartphones, tablets, and portable media players, where high-quality audio recording and playback are essential while maintaining low power consumption.

Applications

• Smartphones
• Tablets
• Portable Media Players
• Voice Recorders
• Headsets

Features

• Stereo Audio Codec: Provides stereo audio encoding and decoding capabilities.
• Low Power Consumption: Optimized for low power operation, extending battery life in portable devices.
• Integrated Microphone Amplifier: Includes a built-in microphone amplifier for direct connection to microphones.
• Headphone Amplifier: Features an integrated headphone amplifier for driving headphones.
• I2C Control Interface: Uses an I2C interface for control and configuration.
• Sampling Rate Support: Supports various sampling rates for audio recording and playback.

Benefits

• High-Quality Audio: Delivers clear and high-fidelity audio for both recording and playback.
• Extended Battery Life: Low power consumption maximizes battery life in portable devices.
• Simplified Design: Integrated microphone and headphone amplifiers simplify the system design.
• Flexible Configuration: I2C interface allows for flexible configuration of audio parameters.
• Compact Size: Available in a small package suitable for space-constrained applications.

Additional Details

The AKM4555VT typically operates with a supply voltage range of 1.6V to 3.6V. It utilizes an I2C interface for configuration and control, allowing for flexible adjustment of audio parameters such as gain, volume, and sampling rate. The integrated microphone amplifier supports both analog and digital microphones. The device also includes a headphone amplifier that can drive headphones with impedances ranging from 16 ohms to 32 ohms. The AKM4555VT is available in a small WL-CSP (Wafer Level Chip Scale Package) or QFN package, making it suitable for space-constrained applications. It is designed to meet the stringent requirements of portable audio devices, providing high-quality audio performance while minimizing power consumption. The device has excellent SNR (signal to noise ratio) and THD+N (Total Harmonic Distortion + Noise) characteristics, guaranteeing a great user experience.