LM4915LQX/NOPB

The LM4915LQX/NOPB is a stereo Class-D audio amplifier driven by two single-ended inputs. It is designed to provide a high-performance, user-friendly amplifier solution that delivers a low-distortion, high-efficiency audio signal. The LM4915LQX/NOPB amplifier can be used in a variety of applications requiring high-quality audio playback.

The LM4915LQX/NOPB is designed to offer a wide range of features such as low harmonic distortion and ease of use. The LM4915LQX/NOPB features an internally controlled switch mode power supply for supplying the amplifier with power. This ensures low power dissipation and increased efficiency. The LM4915LQX/NOPB is also equipped with a high-impedance differential input stage, enabling the use of low-impedance devices like microphones, digital-to-analog converters, and CD players. It also includes an I2S interface for adding digital audio sources and interfacing with DSPs.

The working principle of the LM4915LQX/NOPB is based on a closed loop technique. The basic concept of this technique is to provide two channels of audio output in a single feedback loop. The input signal is first amplified by the first stage amplifier, then split into two parts, one for each channel. Each part is then separately amplified and sent to the output drivers. The output drivers then convert the amplified signal into a pulsating signal, allowing the drivers to switch the output amplitude between two predetermined levels. The feedback loop then compares the output signal with the original input signal and makes adjustments to itself to maintain the desired sound quality.

The LM4915LQX/NOPB is suitable for a wide range of audio applications such as mobile audio, portable audio, and automotive audio. It can be used to drive loudspeakers, headphones, subwoofers, and many other audio devices. The LM4915LQX/NOPB is capable of delivering a high-quality sound with a low total harmonic distortion of 0.0075%. It also features a wide frequency response range of 20 Hz to 20 kHz.

In conclusion, the LM4915LQX/NOPB is a versatile and efficient Class-D audio amplifier that is capable of providing a high-quality audio signal on both single-ended and differential outputs. Its low harmonic distortion, high efficiency and user-friendly design make it an ideal choice for a wide range of applications.