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TA2123AF Datasheet, PDF (1/20 Pages) Toshiba Semiconductor – 1.5V Stereo Headphone Amplifier | |||
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TOSHIBA Bipolar Integrated Circuit Silicon Monolithic
TA2123AF
1.5V Stereo Headphone Amplifier
TA2123AF
The TA2123AF is the system amplifier IC which is developed
for playback stereo headphone equipments. It is built in dual
autoâreverse 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.
(builtâin center amplifier switch)
Weight: 0.17g (typ.)
· Builtâin bass boost function
· Builtâin treble boost function
· Builtâin power amplifier muting function
· Builtâin input terminal for beep signal
· Builtâin input capacitor for reducing buzz noise
· GV = 24dB (typ.)
· Builtâin AGC circuit (in case of boost mode, this circuit operates.)
· Low supply current
(VCC = 1.3V, f = 1kHz, RL = 32â¦, Ta = 25°C, typ.)
No Signal 0.1mW Ã 2 0.5mW Ã 2
Output coupling type
OCL type
1.5mA
2.2mA
3.0mA
4.9mA
5.0mA
8.6mA
· 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
1
2002-10-30
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