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Linear - Amplifiers - Audio

The LM49350RLX/NOPB is an audio amplifier chip, manufactured by Texas Instruments Incorporated, with a low power consumption of 1.5 mW/channel and a high fidelity audio output with low distortion. It is capable of providing an audio output for up to 8 channels with a power capability of up to 50mW/channel. With its low power consumption and high output performance, the LM49350RLX/NOPB is a perfect solution for audio applications such as portable and multimedia applications demanding low power and high fidelity audio.

Application Field

The LM49350RLX/NOPB is designed for low power applications with high performance audio output. The chip is ideal for use in a range of audio applications, including portable multifunctional products such as radio or CD players, portable audio players, video players, internet audio streaming, and portable multimedia systems. It is also ideal for use in car audio systems as well as other home theater or mobile audio applications. It has the capability to drive a range of different headphone and speaker loads with no increase in power consumption.

Working Principle

The LM49350RLX/NOPB uses the BTL (Bridge Tied Load) architecture to provide a high quality, low power output stage. The BTL architecture enables the chip to drive both headphone and speaker loads without any significant increase in power consumption. The BTL architecture helps to minimise the distortion level of the output stage as compared to conventional amplifier designs. Also, the chip incorporates a high impedance line driver that is capable of driving headphones. The chip includes an efficient Class G amplifier architecture, which enables it to provide a high efficiency output stage with a low noise level.

The LM49350RLX/NOPB also incorporates a bridge-tied load output stage that ensures efficient energy transfer from the power amplifier to the speaker or headphones. The bridge-tied load output stage provides a powerful and efficient transfer of energy from the amplifier to the speaker, ensuring low levels of power loss and distortion. Additionally, the chip also includes a temperature-compensated output stage for improved stability and thermal management.

Conclusion

The LM49350RLX/NOPB is an ideal solution for low power audio applications due to its low power consumption and high fidelity audio output. This chip incorporates a BTL architecture and a Class G amplifier design, allowing it to efficiently drive headphone and speaker loads. The chip also includes an efficient bridge-tied load output stage, enabling it to transfer energy efficiently from the amplifier to the speaker. Additionally, the chip includes temperature-compensated output stage for improved stability and thermal management, making it a perfect solution for audio applications such as portable and multimedia applications that require low power and high fidelity audio.

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