TA2069AF
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2069AF
3V Stereo Headphone Amplifier (3V USE)
The TA2069AF is developed for play鈭抌ack stereo headphone
equipments (3V use).
It is built in dual preamplifiers, dual OCL power amplifiers,
motor governor, DC volume control and volume limiter etc.
Features
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Built鈭抜n preamplifier
Input coupling condenser鈭抣ess
Built鈭抜n input capacitor for reducing buzz noise
Low noise: V
ni
=
1.2
碌V
rms
(typ.)
Built鈭抜n power amplifier
OCL (output condenser鈭抣ess)
Voltage gain : G
V
= 31dB (typ.)
Built鈭抜n motor governor
Current proportion type
Built鈭抜n DC volume control function
DC volume maximum attenuation : ATT = 82dB (typ.)
Built鈭抜n volume limiter function
Built鈭抜n bass boost function
Operating supply voltage range (Ta = 25擄C)
PRE + PW: V
CC
(opr) =
1.8~3.6V
GVN: V
CC
(opr) = 2.1~3.6V (motor voltage =
1.8V)
Low supply current (V
CC
= 3V, f =
1kHz,
Ta = 25擄C, typ.)
PRE + PW
Output Power
0.1mW 脳 2
14.2mA
12.5mA
0.5mW 脳 2
19.5mA
16.5mA
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Weight: 0.32g (typ.)
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No Signal
R
L
= 16鈩?/div>
R
L
= 32鈩?/div>
9.5mA
9.5mA
GVN: I
CC
= 2.5mA
1
2002-10-30
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