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AK4201 PDF预览

AK4201

更新时间: 2024-11-03 06:36:51
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13页 238K
描述
Stereo Cap-less HP-Amp

AK4201 数据手册

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CONFIDENTIAL  
[AK4201]  
= Preliminary =  
AK4201  
Stereo Cap-less HP-Amp  
GENERAL DESCRIPTION  
The AK4201 is an audio stereo cap-less headphone amplifier. The AK4201 eliminates the need for large  
DC-blocking capacitors with a built-in Charge-pump circuit. The PSRR (Power supply Rejection Ratio)  
can achieve to 100dB with a built-in regulator, and it can output 2Vrms with excellent linearity when used  
as lineout amplifier. The AK4201 is available in tiny 12-pin USON (2.2 X 2.9mm), saving board space,  
cost, and component height.  
FEATURE  
† Stereo Cap-less Amplifier (No DC-blocking capacitors required)  
† High PSRR (100dB at 217Hz)  
† Output Power:  
65 mW x 2ch @ 16Ω, AVDD=PVDD=5.0V, THD+N=-40dB  
30 mW x 2ch @ 16Ω, AVDD=PVDD=3.3V, THD+N=-40dB  
† Output Noise Level: 11µVrms (Ri=20kΩ, Rf=30kΩ)  
† Line-Out level:  
2.0Vrms @ 5kΩ, AVDD=PVDD=5.0V  
2.0Vrms @ 5kΩ, AVDD=PVDD=3.3V  
† Regulator built-in  
† THD+N:  
-60 dB @ 16Ω, 50mW, AVDD=PVDD=5.0V  
-60 dB @ 16Ω, 20mW, AVDD=PVDD=3.3V  
-90 dB @ 5kΩ, 2Vrms, AVDD=PVDD=5.0V  
-90 dB @ 5kΩ, 2Vrms, AVDD=PVDD=3.3V  
† Low Power Shutdown Mode  
0.1µA (typ)  
† Adjustable Gain Range:  
-16 dB ~ 16dB  
† Pop noise free at power-ON/OFF  
† Power Supply: 2.6V ~ 3.6V or 4.5V ~ 5.5V  
† Ta: 40 85°C  
† Package: 12pin USON (2.2 x 2.9mm, 0.5mm pitch)  
Rev 0.2  
2008/07  
- 1 -  

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