6.8W NCN Function Mono Class s Audio Amplifier with

Boost converter

■ FEATURE

Non-clip output control function

Filter-less Modulation, Eliminating Output Filter

Output Power

5.5W(VBAT=42V, PVDD=6.5V, RL=4Q2

THD+N=10%)

6. 8W(VBAT=42V, PVDD=7.0V, RL=3Q

THD+N=10%)

3.0W(vBAr=4.2,PvDD=6.5V,R=80

THD+N=10%)

Power Supply

Boost Input VBAT: 2.5V to 5.5V

Boost Output PVDD: VBAT to 7.0V

Adjustable BOOST Output Voltage

Class AB/ Class D

Over Current Protection, Thermal Protection

Low voltage malfunction prevention function

included

Pb-Free Packages, ESOP8L

■ APPLICATIONS

Bluetooth Speakers

Portable Speakers

2.1 Channel Speakers

Megaphone

iphone/ipod/ipod docking

MP4/GPS

Tablet PC/Note Book

Smart Phones

LCD TV/Monitor

Portable Gamers

■ GENERAL DESCRIPTION

SC2306 integrates a boost converter with a

filter-less stereo class D audio power amplifier to

provide 5.5W continuous power into a 4Q speaker

when operating from a Li-battery voltage boosted

to 6. 5V, 6.8W continuous power into a 3Q speaker

when operating from a Li-battery voltage boosted

to 7.0V. Meanwhile, the boost output voltage is

adjustable

SC2306 features Non-clip output function(NCN)

which detects output signal clip due to the over

input signal and suppresses the output signal clip

automatically. Also, the NCN function can adapt the

output clip caused by power supply voltage down

ith battery. It can significantly improve the sound

quality, creating a very comfortable musical

enjoyment, and to protect the speakers from

overload damage. It also supplies NCN OFF mode

Class AB amplifier mode is also available for

SC2306 Once the emi Interference from class D

and Boost Converter becomes an annoying

problem, SC2306 can be changed into Class

mode

SC2306 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

SC2306 has the independent shutdown

function which can minimize the power

consumption at standby and MUTE function. As for

protection function, over current protection function

for speaker output terminals, over temperature

protection function, and low supply voltag

malfunction preventing function are also prepared