UNISONIC TECHNOLOGIES CO., LTD
PA301 1
3-W STEREO AUDIO POWER
AMPLIFIER WITH ADVANCED
DC VOLUME CONTROL
DESCRIPTION
As a stereo audio speaker which is operating on a single
5.5V supply, the UTC
PA3011
is capable of delivering 3W of
output power per channel into 3Ω loads with less than 10%
THD+N.
The speaker volume level is adjusted by applying a dc
voltage to the VOLUME terminal. When a dc voltage is applied, to
avoid an unexpected high volume level through the headphones,
a third terminal, SEMAX, limits the headphone volume level. And
also a fade mode ramps the volume up and down to ensure a
smooth transition between active and shutdown modes,.
The UTC
PA3011
can be applicatated in notebook, LCD
monitors and pocket PC.
CMOS IC
Lead-free:
PA3011L
Halogen-free: PA3011G
FEATURES
* DC volume control with 2-dB steps :-40 dB ~ 20 dB
* Fade mode
* Maximum volume setting for SE mode
* 3 W into 3Ω load
* MUX stereo input
ORDERING INFORMATION
Normal
PA3011-N24-R
PA3011-N24-T
Ordering Number
Lead Free Plating
PA3011L-N24-R
PA3011L-N24-T
Halogen Free
PA3011G-N24-R
PA3011G-N24-T
Package
HTSSOP-24
HTSSOP-24
Packing
Tape Reel
Tube
www.unisonic.com.tw
1 of 7
QW-R502-247.A
Copyright © 2008 Unisonic Technologies Co., Ltd
UTC-IC [ UNISONIC TECHNOLOGIES ]
