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Description: The TPA2011D1 is a 3.2-W high-efficiency, filter-free Class-D audio power amplifier housed in a 1.21 mm x 1.16 mm wafer chip scale package (WCSP) that requires only three external components. This amplifier features 95% efficiency, an 86-dB power supply rejection ratio (PSRR), a quiescent current of 1.5 mA, and enhanced RF immunity, making it suitable for cellular handsets. The TPA2011D1 also boasts a fast startup time of 4 ms with no audible turn-on pop, which is advantageous for PDA and smartphone applications. It allows independent gain control while summing signals from separate sources and has a low noise floor of 20 µV. This product is manufactured by Texas Instruments.

The TPA2011D1 Class-D audio power amplifier is designed to deliver high-quality audio output with minimal external components, making it a cost-effective solution for portable devices. The compact dimensions of the WCSP package facilitate integration into space-constrained designs, such as smartphones and PDAs. The amplifier's 95% efficiency significantly reduces heat generation, enhancing the reliability and lifespan of the device.

The 86-dB PSRR indicates the amplifier's ability to reject power supply noise, ensuring clean audio output even in environments with fluctuating supply voltages. The low quiescent current of 1.5 mA contributes to extended battery life, a critical factor in mobile applications. The fast startup time of 4 ms allows for quick audio playback, while the absence of an audible turn-on pop enhances user experience by preventing disruptive noise during power-up.

The TPA2011D1's capability to independently control gain while summing signals from different sources provides flexibility in audio mixing applications. This feature is particularly beneficial in scenarios where multiple audio inputs are used, allowing for seamless integration of various audio signals without compromising sound quality. The low noise floor of 20 µV further ensures that the amplifier maintains audio fidelity, making it suitable for high-performance audio applications.

Overall, the TPA2011D1 is a highly efficient and versatile audio amplifier ideal for modern portable electronic devices, combining performance with ease of integration and low power consumption.The TPA2011D1 is a 3. 2-W high efficiency filter-free class-D Audio Power Amplifier (class-D amp) in a 1, 21 mm G— 1, 16 mm wafer chip scale package (WCSP) that requires only three external components. The TPA2011D1 is a 3. 2-W high efficiency filter-free class-D Audio Power Amplifier (class-D amp) in a 1, 21 mm G— 1, 16 mm wafer chip scale package (WCS

P) that requires only three external components. Features like 95% efficiency, 86-dB PSRR, 1. 5 mA quiescent current and improved RF immunity make the TPA2011D1 class-D amp ideal for cellular handsets. A fast start-up time of 4 ms with no audible turn-on pop makes the TPA2011D1 ideal for PDA and smart-phone applications.

The TPA2011D1 allows independent gain while summing signals from separate sources, and has a low 20 V noise floor. By Texas Instruments