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    📢 Promotion ends on Mar. 31st! Get FREE SHIPPING for your automotive project! Order now! 🛒

    FDA903S-6DT

    FDA903S-6DT

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    FDA903S-6DY

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    1 x 10 W class D digital input automotive power amplifier with diagnostics, wide voltage operation range for car audio and telematics
    Learn More about FDA903S-6DY

    Quantity $ per Unit Savings
    1 - 9$5.670%
    10 - 24$5.1010%
    25 - 99$4.8215%
    100 - 249$4.1826%
    250 - 489$3.9630%
    490 - 500$3.5537%
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    In stock
    $5.67
    Parameter NameParameter Value
    Supply Voltage Min Volt3.3
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius125.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTray
    RoHs compliantEcopack2
    GradeAutomotive
    Package NameQFN-32L WF

    The FDA903S is the new ST single channel class-D audio amplifier, specifically designed for automotive applications. The FDA903S integrates a 24-bit, 100 dB DAC conversion and PWM class-D output stage with feedback before LC filter. This configuration enables the design of a compact and inexpensive application.


    The FDA903S supports I2S and TDM digital bit stream up to 16CH with several sampling frequencies from 8 kHz up to 96 kHz. FDA903S embeds a complete diagnostic in play, including real-time load-current monitoring and digital admittance meter, to support the most demanding OEM requirements in terms of speaker control and system robustness/ reliability.


    The FDA903S supports start stop cranking down to 3.3 V and it is available in a very compact and thin QFN 5x5 package. Thus the FDA903S is suitable for any level of automotive application especially e-Call and Telematics.

    Key features
    • AEC-Q100 qualified
    • Integrated 100 dB D/A conversion
    • I2S and TDM digital input (up to 16CH TDM)
    • Selectable input sample rate frequency (8/16/32/44.1/48/96 kHz)
    • Wide supply operating range: 3.3 V - 18 V
    • PWM frequency switching selectable by I2C
      • 352.8 kHz, 384kHz, 411.6 kHz, 448 kHz
    • 2 I2C addresses
    • MOSFET power outputs
      • Typ 10 W 4 Ω at 14.4 V, 1 kHz THD = 1%
      • Typ 5 W 8 Ω at 14.4 V, 1 kHz THD = 1%
    • Noise: 38 μV A-weighted: 20 kHz
    • 8 Ω, 4 Ω driving capability
    • Input amplitude limiter (configurable through I2C)
    • I2C full configurability and diagnostic
      • Startup diagnostic
      • Input voltage amplitude limiter function (configurable through I2C)
      • 4 x Thermal warning
      • DC diagnostic
      • OCP protection scheme configurable
      • Mute time configuration
      • DAM (Digital-Admittance-Meter)
    • Capability to run complete diagnostic in play
      • Configurable Clipping Detector
      • One of the Thermal Warnings
      • Over Current Protection
      • Open Load detection
      • High voltage mute
    • Load current monitor
    • 2 CD/Diag pin
    • Integrated ESD and short circuit protection
    • QFN32 wettable flanks
    • Tested according to CISPR 25 - Class V (Fourth edition)