TA2123AF中文資料東芝數(shù)據(jù)手冊PDF規(guī)格書

1.5V Stereo Headphone Amplifier

The TA2123AF is the system amplifier IC which is developed for playback stereo headphone equipments. It is built in dual auto?reverse preamplifiers, dual power amplifiers with bass / treble boost function, AMS (automatic music sensor) function, beep function, AGC for power amplifier etc.

Features

 Power amplifier stage

? In case of output coupling type, the supply current decreases. (built?in center amplifier switch)

? Built?in bass boost function

? Built?in treble boost function

? Built?in power amplifier muting function

? Built?in input terminal for beep signal

? Built?in input capacitor for reducing buzz noise

? GV = 24dB (typ.)

? Built?in AGC circuit (in case of boost mode, this circuit operates.)

? Low supply current

(VCC = 1.3V, f = 1kHz, RL = 32?, Ta = 25°C, typ.)

? Preamplifier stage

? Auto-reverse compatible

? Built-in input capacitor for reducing buzz noise

? Input coupling condensor-less

? Built-in metal mode drivers

? Preamplifier muting function

? Built-in ripple filter circuit

? Built-in AMS (automatic music sensor) function (mixer amplifier and level comparator)

? Built-in power switch

? Operating supply voltage range (Ta = 25°C)

VCC (opr) = 0.95~2.2V