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Location: Home > Products> Power Audio Amplifier> Digital DSP Power Amplifier
  • Car Audio Amplifier

  • Power Audio Amplifier

  • Smart Audio Amplifier

  • SPC Audio Amplifier

  • Haptic Driver

  • Power Management

  • Audio Algorithm

Car Audio Amplifier

  • Digital 4-CH Power Amplifier
  • Analog 4-CH Power Amplifier

Power Audio Amplifier

  • Digital DSP Power Amplifier
  • Analog Power Amplifier

Smart Audio Amplifier

  • DSP Smart PA
  • N-DSP Smart PA
  • Hybrid Smart PA
  • Digital Boost PA

SPC Audio Amplifier

  • SPC Boost PA
  • SPC Charge Pump PA

Haptic Driver

  • HV Haptic Driver
  • LV Haptic Driver

Power Management

  • LED Driver

Audio Algorithm

  • FS Sound
  • FS Techno
  • FS Haptic
  • SPS
  • SDG
  • SPC
Car Audio Amplifier
Digital 4-CH Power Amplifier Analog 4-CH Power Amplifier
Power Audio Amplifier
Digital DSP Power Amplifier Analog Power Amplifier
Smart Audio Amplifier
DSP Smart PA N-DSP Smart PA Hybrid Smart PA Digital Boost PA
SPC Audio Amplifier
SPC Boost PA SPC Charge Pump PA
Haptic Driver
HV Haptic Driver LV Haptic Driver
Power Management
LED Driver
Audio Algorithm
FS Sound FS Techno FS Haptic SPS SDG SPC
Digital DSP Power Amplifier
  • 30W立体声输出、集成DSP的数字输入D类音频放大器
    FS2105SE

    30W立体声输出、集成DSP的数字输入D类音频放大器

    数字输入、30W立体声(BTL)、60W单声道(PBTL)功率输出@8ohm,集成DSP,输入电压范围4.5V ~ 26.4V

    More +
  • 24W立体声输出、集成DSP的数字输入D类音频放大器
    FS2119N

    24W立体声输出、集成DSP的数字输入D类音频放大器

    数字输入、24W立体声(BTL)、48W单声道(PBTL)功率输出@8ohm,集成DSP,输入电压范围4.5V ~ 26.4V

    More +
  • Products

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FourSemi was founded in 2016. The core team members have more than 20 years of experience in the world‘s leading semiconductor companies. FourSemi team have rich experience in the design of complex structure digital - analog hybrid chip.  FourSemi has diversified product forms and strong technical strength. Its products cover Car Audio Amplifier, Mid/High Power Audio Amplifier, Smart Audio Amplifier, SPC Audio Amplifier, Haptic Driver, Power Management, etc.  Performance parameters of FourSemi products are comparable to domestic and foreign first-line IC companies. They are also widely used in smartphones, tablets, wearable devices, smart speakers, IOT, automotive applications, etc.

FourSemi integrated digital and analog circuits and audio algorithms together and launched domestic Smart PA FS1601 and large power amplifier FS2105 in 2017 and 2021 respectively, achieving a breakthrough in this field in China. In 2022,FourSemi won the "Annual Upstart Company Award" of China IC Billboard.

FourSemi products have been approved by domestic and international first-class brand customers. Mass production customers include Samsung, Xiaomi, vivo, moto, Honor and other well-known companies. Based on the mature supply chain system, as well as the company's long-term investment and accumulation in audio, FourSemi has broken through the signal chain, expanded the product line, and is successively launching haptic driver, flash LED drive and other signal chain upstream and downstream products.

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  • Home
  • Products
    Car Audio Amplifier
    Power Audio Amplifier
    Smart Audio Amplifier
    SPC Audio Amplifier
    Haptic Driver
    Power Management
    Audio Algorithm
  • Applications
    Mobile Communication
    Smart Wearable
    Internet of Everything
    Automotive Application
  • Support
    Quality Assurance
    Technical Doc
    Audio Algorithms
    Sample Application
  • Careers
    Campus Recruiting
    Recruiting Position
  • About Foursemi
    Company Profile
    Cooperative Partners
    News
    Contact Us
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