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HT660
　

The HT660 is a stereo Class D audio amplifier with multiple audio format port (I2S, LJ, RJ, TDM). It supports a variety of audio clock configurations.

The outputs of the HT660 can be configured to drive two speakers in stereo BTL mode or mono PBTL mode.

The HT660 also includes hardware and software control modes, integrated digital clipper, and a wide power supply operating range to enable use in a multitude of applications.

Advanced EMI Suppression with Spread Spectrum Control enables the use of inexpensive ferrite bead filters while meeting EMC requirements for system cost reduction.

An optimal mix of thermal performance and device cost is provided in the 150-mΩ RDS(ON) of the output MOSFETs. Additionally, a thermally enhanced 36-Pin QFN provides excellent operation in the elevated ambient temperatures found in modern consumer electronic devices.

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特點

  • Power supply:

  • PVDD: 4.5V – 16V; -DVDD: 3.3V

  • Audio Performance

    BTL, 2×20W (PVDD=14.5V, RL=4?, THD+N=1%)

    PBTL, 24W (PVDD=15V, RL=4?, THD+N=1%)

    THD+N=0.04% (PVDD=12V, RL=4?, Po=1W)

  • Noise: 110uV (Gain = 19dBV, A weighted)

  • Low Quiescent Current

    12mA at PVDD = 12V, no filter

  • High efficiency in 1SPW mode (>90%)

  • Inductor-free Operation (Ferrite Bead) and EMC compliant for most cases

  • Flexible Audio I/O

    I2S, LJ, RJ, TDM input

    8, 16, 32, 44.1, 48, 88.2, 96, 192kHz Sample Rates

  • General Operational Features

    Hardware or Software Control mode

    4 Programmable I2C Addresses

    Spread Switching Frequency for Class D

  • Robustness Features

    Clock Error, DC, Over Current, Overvoltage, Undervoltage, and Overtemperature Protection

  • Packages: Pb-free Packages, QFN36L-6×6


應用

  • Bluetooth/Wi-Fi Speakers

  • Portable Speakers

  • Smart speakers

  • LCD TV/Monitor

  • Sound Bars, Docking stations, PC Audio


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 I: Input; O: Output; G: Ground; P: Power; BST: BOOT Strap; OD: Open drain

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