An audio amplifier is a power amplifier device used to drive speakers to produce sound, thereby reproducing sound. It is used in all electronic products that produce sound; it helps to increase the amplitude of audio waves fed from the input device, and then transmits power from milliwatts to kilowatts. Higher amplitude audio waves.
Electronic devices currently on the market are equipped with amplifier systems, such as speakers, mobile phones, home theaters, headphones, TVs, concert and theater music systems, etc., all equipped with power amplifiers to increase the amplitude and higher audio output. quality.
The main performance indicators of the audio power amplifier are: output power, frequency response, distortion, signal-to-noise ratio, output impedance, damping coefficient, etc.; the audio signal amplified by the audio power amplifier is generally typed. Different audio power amplifiers can be used in different machines. different power requirements on the output signal.
South Korea's NF (Naif) NTP series audio power amplifier chips , represented by Gongcai.com , are closer to the domestic market, have a better understanding of customer needs, are more timely in supply, and are closer to customers in terms of products and services.
In the domestic market, South Korea's NF audio power amplifier series not only provides separate headphones, speaker power amplifiers, and CODECs, but also creates a product line that integrates the above functional combinations.
South Korea's NF Company has been established for 20 years. It has been focusing on the independent research and development of digital audio chips for many years. It has a group of global high-end IC design experts and sound effect algorithm experts. Its product brand has a high reputation among the older generation of engineers. recognition, and has always been favored by local Korean companies Samsung and LG; nearly 80% of Samsung and LG's audio and video electronic products use Korean NF chip products and are sold around the world.
(1) Recommended products for home theater→Audio power amplifier chips: NTP8849 and NTP8835
◆Maximum output power of 60W (THD＜1%)
◆Supports 4 ohm speakers, output efficiency is over 85%
◆Multi DRC＋POST DRC＋RS DRC power control to effectively prevent sound breakage.
◆APEQ patented technology maximizes the cabinet sound effect.
◆Less than 1% distortion, higher than 95db signal-to-noise ratio, no additional noise.
(2) AI smart speaker products → Audio power amplifier chips: NTP8910A and NTP8918
◆Minimum 4.5V working voltage
◆Supports 4 ohm speakers, output efficiency is over 85%
◆RS DRC dynamic power control effectively prevents sound breakage
◆2*16-segment adjustable PEQ, adding APEQ function to truly improve the sound quality
◆Feedback output with IIS SDATA, suitable for AI noise elimination
(3) TV recommended products→Audio power amplifier chips: NTP8918 and NTP8928
◆4.5-28V wide voltage operation
◆8 ohm speaker output efficiency is over 90%
◆RS DRC dynamic power control effectively prevents sound breakage
◆2*16-segment adjustable PEQ, truly improving sound quality
◆Feedback output with IIS SDATA, a must-have for AI smart TVs
The advantages of Korean NF (Naifu) audio amplifier:
1. It has 24Bit, 96KHz high-quality audio data processing and supports Hi-Res audio system. Other brand power amplifier products basically only have 48K data processing capabilities.
2. APEQ patented technology, when the frequency band is limited, other frequency bands can be independently improved to give full play to the maximum performance of the speaker.
3. With unique 3D sound effects; multi-band intelligent equalizer, all products in the line have more settable PEQ points than similar products.
4. Auto Mute mechanism. The Auto Mute function can turn off Kung Fu when the input signal is small, reducing the impact of noise.
Note: Users need to pay attention to the working voltage and output power of the corresponding product when selecting chips. If the working voltage is not selected correctly, there will be major quality problems in the products after production and shipment.