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EUA6011A

Eutech Microelectronics
Part Number EUA6011A
Manufacturer Eutech Microelectronics
Description 3-W Stereo Audio Power Amplifier
Published Jan 21, 2011
Detailed Description EUA6011A 3-W Stereo Audio Power Amplifier with Advanced DC Volume Control DESCRIPTOIN The EUA6011A is a stereo audio pow...
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EUA6011A
EUA6011A

Overview
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 z 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 z z z z APPLICATIONS z z z Notebook PC LCD Monitors Pocket PC DS6011A Ver 1.
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in EUA6011A Block Diagram DS6011A Ver 1.
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in EUA6011A Typical Application Circuit Figure 1.
Application circuit using single-ended inputs and input MUX Figure 2.
Application circuit using differential inputs DS6011A Ver 1.
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DataSheet.
in EUA6011A Pin Configurations Package Pin Configurations(Top View) TSSOP-24 with a Thermal Pad exposure on the bottom of the package Pin Description PIN PIN I/O DESCRIPTION PGND LOUTPVDD LHPIN LLINEIN LIN VDD RIN RLINEIN RHPIN ROUTROUT+ SHUTDOWN 1,13 12 3,11 10 9 8 7 6 5 4 2 24 O I I I I I I O O Power ground Left channel negative audio output ...


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