TPA6011A4 www.ti.com SLOS392A – FEBRUARY 2002 – REVISED JULY 2004 3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
FEATURES DESCRIPTION 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 The TPA6011A4 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 …
