PT2301 amplifier equivalent, 1 watt audio power amplifier.
* 1W (8 Ω) mono channel speaker driver + stereo headphone driver
* Digital controlled volume (49 steps /+15dB ~ -90dB)
* 2 mono microphone inputs, 1 microphon.
the headphone section of the PT2301 has two mode types for different purposes, A-type (Output Capacitor-less) or B-type.
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