Datasheet > AK4205

AK4205

更新时间： 2022-02-26 12:48:25

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
25页	919K
描述
Ultra Low Noise and Distortion Headphone Amp with Analog Switch

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AK4205 数据手册

[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 Vrms Output

 Pop & Click Noise Free Switching Control

 Built-in Negative Voltage Generator

 Mute Function

3. Ta = 40  85C

4. Power Supply:

 Positive Power Supply (PVDDA, PVDDB): 6.0 V (typ)

 Negative Power Supply (PVEEA, PVEEB): -5.0 V (typ)

 Reference Power Supply (RVDD): 6.0 V (typ)

 Analog Switch Power Supply (SWVDD): 3.3 V (typ)

5. Package:

 36-pin QFN (5 x 5 mm, 0.4 mm pitch)

016012367-E-00

2016/12

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