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Location: Home > Products> Smart PA> Hybrid Smart PA
  • Large Power AMP

  • Smart PA

  • SPC PA

  • Haptic Driver

  • Audio Algorithm

  • Audio Codec

  • Large Power AMP

    High-Power AMP

    Medium-Power AMP

  • Smart PA

    DSP Smart PA

    Non-DSP Smart PA

    Hybrid Smart PA

  • SPC PA

    SPC Boost PA

    SPC Charge Pump PA

  • Haptic Driver

    High Voltage

    VBAT Voltage

  • Audio Algorithm

    FS Sound

    FS Techno

    SDG

    SPC

  • Audio Codec

Large Power AMP
High-Power AMP Medium-Power AMP
Smart PA
DSP Smart PA Non-DSP Smart PA Hybrid Smart PA
SPC PA
SPC Boost PA SPC Charge Pump PA
Haptic Driver
High Voltage VBAT Voltage
Audio Algorithm
FS Sound FS Techno SDG SPC
Audio Codec
Hybrid Smart PA
  • 9.5V Hybrid Smart PA
    FS1758N

    9.5V Hybrid Smart PA

    FS1758N is an analog-input hybrid smart PA chip integrated with I sense function . It has high performance while low power consumption.Cooperating with FourSemi SDG, which is speaker excursion and temperature protection algorithm, and FS Sound audio algorithm, it applies to mobile phones, tablets, smart watches, smart home audio, etc.

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  • 9.5V Hybrid Smart PA
    FS1794N

    9.5V Hybrid Smart PA

    FS1794N is an analog-input hybrid smart PA chip integrated with I sense function . It has high performance while low power consumption.Cooperating with FourSemi SDG, which is speaker excursion and temperature protection algorithm, and FS Sound audio algorithm, it applies to mobile phones, tablets, smart watches, smart home audio, etc.

    More +
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FourSemi was founded in 2016. The founding team comes from well-known international semiconductor companies, such as Qualcomm, NXP, Texas Instruments, etc. The core backbone team all have more than 20 years of semiconductor industry experience. FourSemi focuses on high-performance digital-analog hybrid chip design. Products cover smart PA, audio power amplifier, haptics driver, car audio, professional audio system and are widely used in mobile phones, tablets, wearable devices, smart speakers, automotive applications, personal computers , etc.

FourSemi launched domestic Smart PA FS1601 and large power amplifier FS2105 in 2017 and 2021 respectively, achieving a breakthrough in this field in China.

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  • Home
  • Products
    Large Power AMP
    Smart PA
    SPC PA
    Haptic Driver
    Audio Algorithm
    Audio Codec
  • Applications
    Mobile Communication
    Smart Wearable
    Internet of Everything
    Automotive Application
  • Support
    Quality Assurance
    Technical Doc
    Software Tools
    Sample Application
  • Careers
    Personnel Philosophy
    Recruiting Position
  • About Foursemi
    Company Profile
    Cooperative Partners
    News
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