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AK4205 - Ultra Low Noise and Distortion Headphone Amp

General Description

The AK4205 is a stereo headphone amplifier corresponding to high resolution with built-in analog switch for Hi-Fi mobile.

The AK4205 achieves industry’s leading level ultra-low noise and ultra-low distortion characteristics (THD+N = -118dB).

The AK4205 is available in a small 36-pin QFN package.

Key Features

  • 1. Headphone Amplifier.
  • Full-differential Input.
  • Built-in Resistors for Gain Adjustment: Fixed to +0.5 dB @1 kHz.
  • 2nd order Low-pass Filter.
  • Ultra-Low Noise: S/N 124dB.
  • Ultra-Low Distortion: THD+N -118 dB @32 Ω, 34 mW THD+N -120 dB @600 Ω, 6.7 mW 2. Analog Switch.
  • Selector Switch for Hi-Fi Audio path and Auxiliary path.
  • Ultra-Low Distortion: THD -124dB@32 Ω, 34 mW.
  • 2.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK4205] AK4205 Ultra Low Noise and Distortion Headphone Amp with Analog Switch 1. General Description The AK4205 is a stereo headphone amplifier corresponding to high resolution with built-in analog switch for Hi-Fi mobile. The AK4205 achieves industry’s leading level ultra-low noise and ultra-low distortion characteristics (THD+N = -118dB). The AK4205 is available in a small 36-pin QFN package. It can save the mounting area of the board by including resistors for gain adjustment and low-pass filter. Application:  Smartphone  Portable AMP  Digital Media Player  USB DAC 2. Features 1. Headphone Amplifier  Full-differential Input  Built-in Resistors for Gain Adjustment: Fixed to +0.