1.2W Audio Power Amplifier CXAR41203 The portable application requires audio power amplifier has minimum of external components and can operate from a single 2.5V to 5.5V power supply

   产品概述 返回TOPzRs嘉泰姆

The CXAR41203 is a 1.2W, fully integrated, audio power amplifier. It is designed to maximize audio performance in portable applications such as mobile phone. The portable application requires audio power amplifier has minimum of external components and can operate from a single 2.5V to 5.5V power supply. CXAR41203 is capable of delivering 1.2W of continuous output power with typically 1% distortion (THD+N) when it drives an 8Ω speaker from a 5.0V power supply.zRs嘉泰姆

The CXAR41203 features a low power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the CXAR41203 features an internal thermal shutdown protection mechanism.zRs嘉泰姆

The CXAR41203 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.zRs嘉泰姆

For maximum flexibility, the CXAR41203 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on time (with the bypass capacitor). When using a 1μF bypass capacitor, it offers 145ms wake-up time when V₊ is equal to 5.0V.zRs嘉泰姆

The CXAR41203 is available in Green TDFN-2×2-8L package. It operates over an ambient temperature range of -40℃</span> to +85℃</span>.zRs嘉泰姆

   产品特点 返回TOPzRs嘉泰姆

• Ideal for Notebook Computers, PDAs, and
    Other Small Portable Audio Devices
• 1.2W into 8Ω BTL Load from 5V Supply at
    THD+N = 1% (TYP)
• Excellent PSRR: Direct Connection to Battery
• Fast Turn-On Time
• Unity Gain Stable
• 2.5V to 5.5V Operation
• Shutdown Current: 0.02μA (TYP)
• Shutdown Pin is Compatible with 1.8V Logic
• -40℃</span> to +85℃</span> Operating Temperature Range
• Available in Green TDFN-2×2-8L PackagezRs嘉泰姆

   应用范围 返回TOPzRs嘉泰姆

Portable Systems
MP3 Players
Mobile Phone
PDAs
GPSzRs嘉泰姆

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