The power amplifier is the most basic device in the audio system. Its task is to amplify the weak electrical signal from the signal source (on the mixing console) to drive the speaker to sound. NTP8928 : Working power supply voltage range (5V~28V) is an amplifier amplification system for single-chip, all-digital audio, including stereo power stage multi-purpose digital audio signal processing. Complete digital PWM modulator with complete functions, excellent performance and high fidelity and two high-power full-bridge MOSFET power stages.

With the development and progress of technology, TV is constantly updated, from black and white to color, from analog to digital, from spherical to flat, constantly improving and innovating, everyone has a higher pursuit of sound quality, and music can make life full of life. Passion, B3F-6052 can also relax tense emotions, music plays an important role in life and is a continuation of culture. Whether it is listening to songs or singing and watching TV sound effects play a very important role. Sound is a device that converts audio signals into sound. The acoustic body has its own power amplifier, and the audio signal is amplified and processed by the acoustic itself to make a sound, so that the sound is amplified. The quality of the sound will directly affect the quality of the music.

Audio is a device that converts sound signals into sound. After the sound signal is amplified, the sound is played back by the speaker itself, making it louder. As the terminal of the whole sound system, the function of the speaker is to convert the audio power into the corresponding sound energy and radiate it to the space. In the audio system, it is a very important component, which can convert electrical signals into sound signals, which can be heard directly by people's ears. The power amplifier is the most basic device in the audio system. Its task is to amplify the weak electrical signal from the signal source (on the mixing console) to drive the speaker to sound.

High power is used to amplify the weak signal from the audio source or preamp to push the speaker to produce sound. The role of a good sound system amplifier is indispensable. In today's digital audio power amplifier field, digital power amplifier IC, medium power module, and high-power professional digital power amplifier can meet almost all audio power amplification needs. We use laptop DVD players, mobile phones, etc. to digital power amplifier technology. And medium power modules, can be used in mixers, car power amplifiers, and some professional active speakers. The high-power professional digital power amplifier will be used in theaters, big stages, and mobile performance teams.

It is recommended that South Korea NF company provide several built-in DSP digital power amplifier chips:

1. NTP8835: The biggest advantage of this chip is that it has an anti-shock output function, and the processing frequency can reach 96K. We all know that the number of adjustable equalizers (EQ) can determine the fineness of a product's sound quality adjustment. This chip has as many as 25-segment PEQ+5-segment GEQ; NTP8835 is a 2-frequency DRC+POSTDRC, as well as noise reduction technology, 3D surround, ASRC and other functions. At the same time, the ASRC (Asynchronous Sampling Rate Conversion) function is increased to 2x30W, and the power output is increased to 2x30W, so that the sampling frequency of the IIS input can be freely and indiscriminately changed from 8kHz to 192kHz to adapt to different circuit schemes. In addition to the common 2.0CH (BTL) and 0.1CH (PBTL) designs, 2.1CH (2xSE+1xBTL) output designs can also be implemented. In addition, South Korea NF also integrates the unique technical patents of NTP8835, such as NS noise reduction algorithm, APEQ characteristic adjustment, virtual 3D, etc., which greatly strengthens and optimizes the sound output.

2. NTP8849: The working power supply voltage range (8V~28V) has 96KHz model > 96KHz model > 96KHz model > 96KHz model > 96KHz model > 96KHz model > 96KHz model > > 96KHz model > > 96KHz model > > 96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Model">96KHz Processor Structure, 32 Programmable Dual Four-Component Filters , and has a closed-loop feedback function. It can effectively suppress the proportion of harmonic signals during system design. It is a powerful all-digital Class-D closed-loop power amplifier; it can suppress multiple harmonics and stabilize output when the power supply is unstable. It has been used in many well-known selected among the brands, far exceeding the performance requirements of most audio products. There are 2x20 stereo mode without cooling, can all functions be controlled by internal registers? via the I2C host interface bus.

3. NTP8928: The working power supply voltage range (5V~28V) is an amplifier amplification system, which is used for single-chip, all-digital audio, including stereo power stage, multi-purpose digital audio signal processing, complete functions, excellent performance, and high-fidelity digital PWM modulator and two high-power full-bridge MOSFET power stages. Sampling with 32kHz , 44.1kHz, 48kHz, 96kHz digital serial audio data. Stereo mode is 2x20 without radiator, which can be used for volume control of basic audio signal processing and other functions, compensating for volume speaker response and parametric equalization. Safety circuit: overcurrent protection.UVP (low voltage protection) Vol/soft mute/power meter/NS noise reduction; smart PWM switch on/off.