EUA6011A
3-W Stereo Audio Power Amplifier
with Advanced DC Volume Control
DESCRIPTOIN
The EUA6011A is a stereo audio power amplifier that drives
3 W/channel of continuous RMS power into a 3-Ω load.
Advanced dc volume control minimizes external components
and allows BTL (speaker) volume control and SE (headphone)
volume control. Notebook and pocket PCs benefit from the
integrated feature set that minimizes external components
without sacrificing functionality.
To simplify design, the speaker volume level is adjusted by
applying a dc voltage to the VOLUME terminal. Likewise, the
delta between speaker volume and headphone volume can be
adjusted by applying a dc voltage to the SEDIFF terminal. To
avoid an unexpected high volume level through the
headphones, a third terminal, SEMAX, limits the headphone
volume level when a dc voltage is applied. Finally, to ensure a
smooth transition between active and shutdown modes, a fade
mode ramps the volume up and down.
FEATURES
Advanced DC Volume Control With 2-dB Steps
From -40 dB to 20 dB
-Fade Mode
-Maximum Volume Setting for SE Mode
-Adjustable SE Volume Control
Referenced to BTL Volume control
3 W into 3-Ω Speakers
Stereo Input MUX
Differential Inputs
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Notebook PC
LCD Monitors
Pocket PC
DS6011A Ver 1.0 Mar. 2006
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EUTECH [ EUTECH MICROELECTRONICS INC ]
