5.0W AB/D Audio Power Amplifier

■ FEATURE

Non-Clip output control Function

Both class ab and class d are available

Excellent EMI Suppression Performance

Filter-less Modulation, Eliminating Output Filter

Output Power

1. 5W(VoD=3.6V, RL=4Q, THD+N=10%, Class D)

3.3W(VDD=5.0V, RL=4Q, THD+N=10%, Class D)

High SNR: 95dB

Low shutdown current: <1uA

Over Current Protection and Thermal Protection

with Auto Recovery

Low voltage malfunction prevention function

included

Pb-Free Packages, ESOP8

■ APPLICAT|oNS

Portable Speakers

Smart Speakers

iphone/ipod/MP3 docking

GPS

Tablet pc/Note book

PMP/MP4/MP5

Portable gamers

Smart phones

■ GENERAL DESCRIPT|oN

SC8508sp is a LOw-EMI, Non-Clipping, filter-less

mono Class D audio power amplifier IC with

maximum output power of 5.0W 4Q

load, 10% THD+N). It has a high

efficiency with class AB amplifier performance

SC8508sp features Non-Clipping Function(NCN)

which detects and suppresses output signal

clippings due to the over level inputs of music or

voice signals. The NCN function also can adapt the

output clippings caused by power supply voltage

down in battery applications. It improves acoustical

quality considerably, gives great listening

enjoyment, and prevents speaker from overload

SC8508sp 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

SC8508sp. Once the EMI Interference from class

D becomes an annoying problem, SC8508sp can

be changed into Class AB mode.

SC8508sp has a filter-less modulation circuit which

irectly 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

SC8508sp has the independent Shutdown function

which can minimize the power consumption at

standby function. As for protection function, over

current protection function for speaker output

terminals, over temperature protection function,

and low supply voltage malfunction preventing

function are also prepared