power amplifier. ETK4888 Datasheet
The ETK4888 is a dual bridgeconnected audio power amplifier which, when connected to a 5V supply, will deliver 2.1W
to a 4Ω load or 2.4W to a 3Ω load with less than 1.0% THD+N.
The ETK4888 also has two separate HP (headphone) enable inputs, each having different logic level thresholds. Either
HP enable input activates the single ended headphone mode and disables the BTL output mode. The HP Sense input is
for use with a normal stereo headphone jack. The remaining input, HP Logic, accepts standard logic level thresholds.
Stereo headphone amplifier mode
Selectable 3D Enhancement
2.2~5.5v operation voltage
Micro power shutdown mode
Improved “click and pop” suppression circuitry
Thermal shutdown protection circuitry
Package: QFN24 (ETK4888Y)
Portable and desktop computers
Portable audio systems