HEROIC HT6881
HT6881 is a Low-EMI, Anti-Clipping, filter-less mono Class D audio power amplifier IC with maximum output power of 6.4W (6.5V power supply, 2Ω load, 10% THD+N). It has a high efficiency with class AB amplifier performance. The ACF function also can adapt the output clippings caused by power supply voltage down in battery applications.APPLICATIONS
●Portable Speakers●iphone/ipod/MP3 docking
●Tablet PC/Note Book
●Portable Gamers
●PDAs
●GPS
●PMP/MP4/MP5
●Smart phones
● TYPICAL APPLICATION
●
GENERAL DESCRIPTION
HT6881 features Anti-Clipping Function (ACF) which detects and suppresses output signal clippings due to the over level inputs of music or voice signals. It improves acoustical quality considerably, gives great listening enjoyment, and prevents speaker from overload damaging. HT6881 has excellent EMI radiation suppression characteristics. The radiation level is well below FCC Part15 Class B standards without any additive design. It keeps from interference with other EMI sensitive circuits, simplifies system design and lowers system cost. Class AB amplifier mode is also available for HT6881. Once the EMI Interference from class D becomes an annoying problem, HT6881 can be changed into Class AB mode. HT6881 has a filter-less modulation circuit which directly drives speakers while realizes low distortion and low noise characteristics.