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TPA6138A2
SLOS704B – JANUARY 2011 – REVISED AUGUST 2015
TPA6138A2 DirectPath™ Headphone Driver With Adjustable Gain
1 Features
3 Description
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The TPA6138A2 is a pop-free stereo headphone
amplifier designed to allow the removal of the output
dc-blocking capacitors for reduced component count
and cost. The device is ideal for single-supply
electronics where size and cost are critical design
parameters.
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Stereo DirectPath™ Headphone Amplifier
– 40 mW Into 32 Ω With 3.3-V Supply
Low THD+N < 0.01% at 10 mW Into 32 Ω
High SNR, >90 dB
Differential Input and Single-Ended Output
Adjustable Gain by External Gain-Setting
Resistors
Configurable as a Second-Order Low-Pass Filter
– Ideal for PWM Audio Sources
Low DC Offset,
