无需输出电容内建负压的G类耳机音频放大器Advanced Stereo Headphone Amplifier CXAR41179是一款采高压工艺并集成反相电荷泵电源的G类音频放大器，透过G类输出级提供良好的性能，相较于AB类组件具有更高的效率，不存在与D类放大器相关的EMI干扰。CXAR41179在单电源2.5~5V供应，低耗电流3.8mA，16Ω同相双负载下，最大输出功率达120mW (TH

   产品概述 返回TOPIE2嘉泰姆

     CXAR41179是一款采高压工艺并集成反相电荷泵电源的G类音频放大器，透过G类输出级提供良好的性能，相较于AB类组件具有更高的效率，不存在与D类放大器相关的EMI干扰。CXAR41179在单电源2.5~5V供应，低耗电流3.8mA，16Ω同相双负载下，最大输出功率达120mW (THD+N=1%)，且在1KHz拥有80dB PSRR。G类输出级架构无需输出大电容以及拥有超低THD+N，使其适合于行动电话以及其它可携式设备的耳机放大应用。CXAR41179采用TDFN-12与WCSP-12 (1.5mmX2mm)封装。CXAR41179 is a dual audio power amplifier designed for portable communication device applications such as mobile phones. CXAR41179 operates from a single 2.5V to 5.5V supply, consumes only 3.8mA of supply current, capable of delivering 30mW of continuous average power into a 16Ω load from a 3V power supply with a THD+N of 1%. Base on the power supply delivered to the device, an internal power management block generates a negative voltage. Thus, the internal amplifiers provide outputs referenced to Ground. In this configuration, the two external heavy coupling capacitors can be removed. It offers significant space and cost savings compared to a typical stereo application. CXAR41179 has an internal gain of – 1.5V/V with low 0.03% THD+N performance. An 80dB at 1kHz power-supply rejection ratio (PSRR) allows these devices to operate from noisy digital supplies without an additional linear regulator. Comprehensive click-and-pop circuitry suppresses audible clicks and pops on startup and shutdown. Other features include short-circuit and thermal-overload protection, and are specified over the extended -40°C to +85°C temperature range. The device is available in tiny 12- bump WCSP (1.5mm×2mm) and TDFN-12 packages.

   产品特点 返回TOPIE2嘉泰姆

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‧2.5V到5.5V操作IE2嘉泰姆

‧固定 -1.5 V/V增益IE2嘉泰姆

‧0.03% THD+NIE2嘉泰姆

‧80dB PSRR (1KHz输入)IE2嘉泰姆

‧防POP音设计</p>

‧低耗电流(3.8mA)IE2嘉泰姆

‧内置shutdown控制电路IE2嘉泰姆

‧16Ω同相双负载输出功率达120mWIE2嘉泰姆

‧短路和过热保护</p>

‧TDFN-12与WCSP-12(1.5mmX2mm)封装IE2嘉泰姆

No Bulky DC-Blocking Capacitors RequiredIE2嘉泰姆

2.5V to 5.5V OperationIE2嘉泰姆

Fixed -1.5V/V GainIE2嘉泰姆

Low 0.03% THD+NIE2嘉泰姆

High PSRR (80dB at 1kHz)IE2嘉泰姆

Integrated Click-and-Pop SuppressionIE2嘉泰姆

Low Quiescent Current (3.8mA)IE2嘉泰姆

Low-Power Shutdown Mode, < 0.1μAIE2嘉泰姆

Available in Space-Saving 12-Bump WCSP (1.5mmIE2嘉泰姆

′2mm) and TDFN-12 PackagesIE2嘉泰姆

RoHS Compliant and 100% Lead(Pb)-FreeIE2嘉泰姆

Halogen-FreeIE2嘉泰姆

   应用范围 返回TOPIE2嘉泰姆

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‧行动电话IE2嘉泰姆

‧个人媒体播放器</p>

‧笔记型计算机IE2嘉泰姆

‧掌上游戏机</p>

‧平板计算机</p>

Cellular PhonesIE2嘉泰姆

MP3 PlayersIE2嘉泰姆

Notebook PCsIE2嘉泰姆

Handheld Gaming ConsolesIE2嘉泰姆

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