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TA2123AF Datasheet

  • TA2123AF

  • 1.5V Stereo Headphone Amplifier

  • 20頁

  • TOSHIBA

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TA2123AF
TOSHIBA Bipolar Integrated Circuit Silicon Monolithic
TA2123AF
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鈭抮everse 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鈭抜n center amplifier switch)
Built鈭抜n bass boost function
Built鈭抜n treble boost function
Built鈭抜n power amplifier muting function
Built鈭抜n input terminal for beep signal
Built鈭抜n input capacitor for reducing buzz noise
G
V
= 24dB (typ.)
Built鈭抜n AGC circuit (in case of boost mode, this circuit operates.)
Low supply current
(V
CC
= 1.3V, f = 1kHz, R
L
= 32鈩? Ta = 25擄C, typ.)
No Signal
Output coupling type
OCL type
1.5mA
2.2mA
0.1mW 脳 2
3.0mA
4.9mA
0.5mW 脳 2
5.0mA
8.6mA
Weight: 0.17g (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擄C)
V
CC (opr)
= 0.95~2.2V
1
2002-10-30

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