DESCRIPTION

The SC7422 is a class AB power amplifier which designed for dual audio purpose. It can deliver 2W × 2 power output to the 4ȍ load in the 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(RL=4ȍ)

* 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<0.7ȝA)

* Thermally protected

APPLICATIONS

* LCD Monitors for TV

* Portable audio

* Multimedia audio

* Other audio applications