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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 +0.5 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 .