LM4910LQX/NOPB

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LM4910LQX/NOPB is a highly integrated power amplifier solution for standard handset applications. Compared with the traditional discrete amplifier, it is the most cost-effective choice and can bring a better audio experience to the handset user. LM4910LQX/NOPB is an optimized single-chip stereo audio power amplifier for dual-channel output, which can provide high-quality, high-efficiency audio output. The device consists of two Class-AB stereo audio power amplifiers, which can ensure wide signal dynamic range, low distortion, and low quiescent power up to 1.1W.

The main application field of LM4910LQX/NOPB is the audio power amplifier for mobile phones. With performance advantages such as low power consumption, low noise, and wide operating temperature range, it is especially suitable for mobile phone audio and multimedia. In addition, it also supports third-generation and higher audio codecs, making it ideal for other audio applications such as two-way radio communication, mobile multimedia, portable/personal entertainment systems, or home audio applications.

The working principle of LM4910LQX/NOPB is that the audio signal passes through the low pass filter before entering the amplifier, and after being filtered the signal enters two independent Class-AB power amplifiers. The two independent amplifiers are completely separated linear circuits, each amplifier drives one speaker, with a total power output of 1.1W. When the audio signal is amplified, a Low Pass Filter (LPF) is also used at the output of the amplifiers to reduce any out of band disturbances that might be in the amplified signal.

The LM4910LQX/NOPB is designed to include over-temperature protection, charge pump, and ground sensing capabilities. It also has an integrated microphone pre-amplifier, which enables hands-free mode in mobile phones and headphone audio applications. What is more, the device can be connected in series with a low-cost Bluetooth module to provide two-channel mono audio amplification.

The LM4910LQX/NOPB has an industry-leading space-saving package structure and is easy to integrate into any system. It is ideal for low-voltage applications that require lower power consumption, high power-added efficiency, and high-quality audio performance.

In summary, LM4910LQX/NOPB is an ideal audio power amplifier solution for mobile phone and other audio applications. It can provide high-efficiency and high-quality audio output, low noise, low power consumption, wide operating temperature range and other performance advantages, while its integrated industry-leading space-saving package structure design makes it easy to integrate into any system.

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