NTP8910A Power Amplifier Chip, Smart Speaker Sound Quality Upgrade!How To Spend The Sound Quality Leap In Smart Speakers

The amplifier chip is the core of the audio processing in smart speakers. It is responsible for converting digital signals into analog signals and played through a speaker; it directly affects the sound quality performance and power efficiency of the speaker; the quality of its performance directly affects the smart speaker of the smart speaker.Sound quality, volume and energy efficiency ratio.

A high -quality power amplifier chip can effectively improve the sound quality of the speaker, make the sound clearer, dynamic and fuller, and maintain lower power consumption, extend the battery life of the speaker; there are many types of amplifier chips commonly used on the market at present on the market.choose,Such as the power amplifier chip of well -known brands such as TI, ADI, South Korea NF, ST;Most of these power amplifiers have the advantages of high -fidelity, low distortion, low consumption, etc., which are very suitable for applying in smart speakers to provide them with wider audio support.

Launched by South Korea NFNTP8910AOneDual -channel digital input power amplifier IC；Design for smart speakers；It integrates multi -functional digital audio signal processing functions, high performance, high -fidelity, and built -in DSP using I2S output;With rich algorithms and audio processing functions, it can provide high -fidelity and low -noise audio output for smart speakers.

1. Product description:

NTP8910A is packaged in QFN32, supporting4.5V～20VVoltage range, supports 4Ω speakers, output efficiency85%The above; have 2*16 -segment PEQ, add APEQ function to really improve the sound quality; RSDRC dynamic power control can effectively prevent breaking sound.At the same time, with the feedback output of IIS SDATA; it can be seamlessly connected to the audio processing unit of the smart speaker, and it can make corresponding processing according to different audio content to provide a better audio experience.

Second, typical application principle diagram:

3. Features:

■ 2 channel stereo (10w x 2 BTL)

■ Work power supply voltage range: 4.5V ～ 20V

■ SDATA Generator (I2S output)

■ Floating point operation

■ 32 programmable dual quarterly quantity filters:

-Omers compensation

-Lar -pass filter,高通Filter, DC cutting off

-The advanced parameter balancer

■ IBB (smart bass enhancement)

■ 3 -band dynamic range control; DRC control; PEQ debugging

Protect电路：

-OCP (Overcurrent Protection)

-OTP (exceeding temperature protection)

-UVP (low pressure protection)

VOL/soft static/power meter/NS noise reduction

■ Smart PWM switch Booth/turn off