CXAR4189/A

CXAR4189/A是一个提供内部增益控制的单片集成电路,它是一个立体声桥接音频功率放大器,能够以小于10%(1.0%)的THD+N将2.6W(1.9W)的功率转换为3W。通过控制Gain0和Gain1这两个增益设置管脚,放大器可以提供6dB、10dB、15.6dB和21.6dB的增益设置。内部增益设置的优点是可以减少元件和PCB面积。在CXAR4189/A中集成了depop电路和热关机保护电路,可在通电或关机模式操作期间降低pops和咔哒声。它还改善了电源关闭的弹出噪声,并保护芯片不受过温和短路故障的破坏。为了简化音频系统设计,CXAR4189将扬声器驱动的立体声桥接负载(BTL)模式和耳机驱动的立体声单端(SE)模式组合到一个芯片中,在该芯片中,SE/BTL输入控制引脚信号可以轻松地切换这两种模式。此外,多个输入选项用于便携式音频系统。CXAR4189A消除了输入选择和单端(SE)模式功能,简化了设计并节省了PCB空间
·低工作电流,6毫安
·改进的Depop电路消除了输出端的导通瞬变
·高PSRR
·内部增益控制,消除外部元件
·在5V、BTL模式下,每通道输出功率为2.6W,进入3W负载
·HP/线路引脚(CXAR4189)允许选择多种输入模式
·SE/BTL引脚选择BTL和SE模式时允许两种输出模式(仅适用于CXAR4189)
·关机模式下的低电流消耗(50毫安)
·短路保护
·TSSOP-24P(CXAR4189)、TSSOP-20P和TQFN3x3-16(CXAR4189A),带热垫包装。

CXAR4189 CXAR4189A内部增益控制的单片集成电路立体声桥接音频功率放大器以小于10%(1.0%)的THD+N将2.6W(1.9W)的功率转换为3W改进的Depop电路消除了输出端的导通瞬变高PSRR

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目录

1.产品概述       2.产品特点     Gk5嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)Gk5嘉泰姆

5.产品封装       6.电路原理图  Gk5嘉泰姆

7.相关产品Gk5嘉泰姆

   产品概述 返回TOPGk5嘉泰姆


CXAR4189/A is a monolithic integrated circuit, which provides internal gain control, and a stereo bridged audio power amplifiers capable of producing 2.6W (1.9W) into 3W with less than 10% (1.0%) THD+N. By controlling the two gain setting pins, Gain0 and Gain1, the amplifier can provide 6dB, 10dB, 15.6dB, and 21.6dB gain settings. The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in CXAR4189/A, that reduces pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, CXAR4189 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. In addition, the multiple input selections are used for portable audio system. The CXAR4189A eliminates both input selection and single-end (SE) mode function to simplify the design and save the PCB spaceGk5嘉泰姆

   产品特点 返回TOPGk5嘉泰姆


· Low Operating Current with 6mA Gk5嘉泰姆

· Improved Depop Circuitry to Eliminate Turn-On Transients in Outputs Gk5嘉泰姆

· HighPSRR Gk5嘉泰姆

· Internal Gain Control, Eliminate External Components Gk5嘉泰姆

· 2.6W Per Channel Output Power into 3W Load at 5V, BTL Mode Gk5嘉泰姆

· Multiple Input Modes Allowable Selected by HP/LINE Pin (CXAR4189) Gk5嘉泰姆

· Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL Pin (for CXAR4189 only) Gk5嘉泰姆

· Low Current Consumption in Shutdown Mode (50mA) Gk5嘉泰姆

· Short Circuit Protection Gk5嘉泰姆

· TSSOP-24P (CXAR4189), TSSOP-20P, and TQFN3x3- 16 (CXAR4189A) with Thermal Pad Packages. Gk5嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)Gk5嘉泰姆

   应用范围 返回TOPGk5嘉泰姆


· Notebook PCs Gk5嘉泰姆

· LCD MonitorGk5嘉泰姆

   技术规格书(产品PDF) 返回TOP Gk5嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!Gk5嘉泰姆

 QQ截图20160419174301.jpgGk5嘉泰姆

产品封装图 返回TOPGk5嘉泰姆


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电路原理图 返回TOPGk5嘉泰姆


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1.3Gk5嘉泰姆

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x6.2-32Gk5嘉泰姆

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x7-48/PGk5嘉泰姆

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SOP8/PGk5嘉泰姆

MSOP8PGk5嘉泰姆

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NGk5嘉泰姆

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NGk5嘉泰姆

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