CXAR41208便携式多媒体设备的音频点击弹出消除器有两个低阻抗模拟开关由打开和关闭开关的静音事件控制

CXAR41208是用于便携式多媒体设备的音频点击弹出消除器。CXAR41208从1.7V到5V的电源工作，连接到现有系统放大器的输出，并在启动和关闭期间提供低阻抗接地路径。输入INL和INR接受从+VCC到-VCC的电压波动。上电和下电瞬态被分流到地面，以防止发出咔哒声。
CXAR41208具有两个低阻抗模拟开关，由打开和关闭开关的静音事件控制。静音事件包括VCC欠压和外部电源、nMUTE引脚的上电、下电和逻辑电平的高低变化。开关在正常工作期间打开，对输出信号没有影响。在放大器的启动和关闭过程中，可以激活CXAR41208，以使输出对地短路，并防止咔哒声从线路输出中拉出电流。
CXAR41208有绿色TDFN-2×2-8L、MSOP-8和WLCSP-1.57×0.80-8B包装。它在-40℃到+85℃的环境温度范围内工作。
•无失真，点击弹出消除
•1.5μA（典型）电源电流
•1.7V至5V单电源操作
•600kΩ在nMUTE引脚处拉低电阻

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXAR41208 is an audio Click-Pop eliminator for portable multimedia devices. Operating from a 1.7V to 5V power supply, the CXAR41208 connects to the output of the existing system amplifier and provides a low-impedance path to ground during startup and shutdown. The inputs INL and INR accept voltage swings from +V_CC to -V_CC. The power-up and power-down transients are shunted to ground to prevent Clicks-Pops from becoming audible.

The CXAR41208 features two low-impedance analog switches controlled by mute events that open and close the switches. The mute events include under-voltage of V_CC and external power supply, power-up, power-down and high to low logical level change of nMUTE pin. The switches are open during normal operation and have no impact on the output signal. During startup and shutdown of the amplifier, the CXAR41208 can be activated to short the outputs to ground and prevent Clicks-Pops from pulling current through the line-outs.

The CXAR41208 is available in Green TDFN-2×2-8L, MSOP-8 and WLCSP-1.57×0.80-8B packages. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOP

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• Distortion-Free, Click-Pop Elimination

• 1.5μA (TYP) Supply Current

• 1.7V to 5V Single Supply Operation

• 600kΩ Pull-Low Resistor at nMUTE Pin

• Available in Green TDFN-2×2-8L, MSOP-8 and

  WLCSP-1.57×0.80-8B Packages

• -40℃ to +85℃ Operating Temperature Range

   应用范围 返回TOP

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MobilePhones

Smart Phones

MobileInternet Devices

PortableGaming Consoles

PortableMedia Players

NotebookComputers

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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POP音抑制器
Part Number	CH	Type	VCC (Min) (V)	VCC (Max) (V)	Quiescent Current  (μA)	RON  (Ω)	BW@  -3dB  (MHz)	Digital  I/O VINH Min(V)	Digital  I/OINL  Max(V)	tON   (ns)	tOFF  (ns)	Package
CXAR41207	2	01:02	2.7	12	600	1	100	1.6	0.3	400	100	WLCSP-1.27x2.13-15B  SOIC-16 TQFN-4x4-16L
CXAR41208	2	SPST	1.7	5	1.5	0.09		1.5	0.4	110	Adj	WLCSP-1.57x0.80-8B   MSOP-8 TDFN-2x2-8L
CXAR41209	2	SPST	2.7	12	300	1	160	1.4	0.4	200	60	TQFN-2.6x1.8-16L SOIC-16