AK4205

[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 ...