SC7422
2-CH AUDIO POWER AMPLIFIER
DESCRIPTION
The SC7422 is a class AB power amplifier which designed for dual
audio purpose. It can deliver 2W × 2 power output to the 4
load in the
SOP-16-375-1.27
2W x 2
5V operation voltage. Total harmonic distortion is lower than 0.03%. The
output mode can be switched between the SE and BTL mode. The
volume also can be changed by a 32 steps volume controller. Moreover,
the SC7422 requires a few extra components in the application. It is
suitable for small or portable products.
FEATURES
* Operation voltage : 5V
* Output power : 2W×2(R
L
=4 )
* Low harmonics distortion (THD=0.03%)
* 32 steps volume control with 1.5dB per step from -45dB to 0dB
* Two output modes (SE and BTL) switched
* Low quiescent operation current
* No POPO noise when turn on/off
* Standby function, Low standby current(Is<0.7 A)
* Thermally protected
DIP-16-300-2.54
ORDERING INFORMATION
Device
SC7422
SC7422S
Package
DIP-16-300-2.54
SOP-16-375-1.27
APPLICATIONS
* LCD Monitors for TV
* Portable audio
* Multimedia audio
* Other audio applications
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0
2006.11.13
Page 1 of 8
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