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PA3431 Datasheet


As a stereo audio speaker which is operating on a single 5V
supply, the UTC PA3431 is capable of delivering 2W of output
power per channel into 4Ω loads in Bridge-Tied Load (BTL) mode
with less than 1% THD+N. Way of two terminals (GAIN0 and
GAIN1) can configured and control the amplifier gain. It also
provided BTL gain settings of 6 dB, 10 dB, 15.6 dB, and 21.6 dB
(inverting). Other features: the SHDN mode is supported to disable
UTC PA3431 for the low current consumption applications; the
current consumption can be reduced to typically 150µA.

* 2W Output power into 4Ω load from 5V supply each channel
* Gain control internally
* Differential input fully
* Depop circuitry
* Shutdown protection thermally
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