?Non-Clip output control Function (NCN)
?Filter-less Modulation, Eliminating Output Filter
?Output Power
6.5Wx2 (VBAT=4.2V, PVDD = 7.3V, R =4?, THD+N=10%)
? -BOOST Input VBAT：2.5V to 5.5V
-BOOST Output PVDD：VBAT to 7.5V
?Adjustable BOOST Output Voltage
?Class AB /Class D available
?Thermal Protection, Over current protection, Low voltage malfunction prevention function included
?Pb-Free Packages，ESOP16
APPLICATIONS
?Bluetooth Speakers
?Portable Speakers
?iPhone/iPod/iPod docking
?Megaphone
GENERAL DESCRIPTION
SC2020 integrates a boost converter with a filter-less stereo class D audio power amplifier to provide 2 × 6.5W continuous power into a 4? speaker when operating from a Li-battery voltage boosted to 7.3V Meanwhile, the boost output voltage is adjustable.
Class AB amplifier mode is also available for SC2020. Once the EMI Interference from class D and Boost Converter becomes an annoying problem, SC2020 can be switched into Class AB mode.
SC2020 has a filter-less modulation circuit which directly drives speakers while realizes low distortion and low noise characteristics. Thanks to filter-less, circuit design with fewer external parts can be made in portable applications.
SC2020 has the independent Shutdown function which can minimize the power consumption at standby and MUTE function. As for protection function, over current protection, over temperature protection function, and low supply voltage malfunction preventing function are also prepared.
典型應用圖
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