TA2069AF Datasheet, PDF (1/14 Pages) Toshiba Semiconductor – TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2069AF
3V Stereo Headphone Amplifier (3V USE)
TA2069AF
The TA2069AF is developed for play−back 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
· Built−in preamplifier
Input coupling condenser−less
Built−in input capacitor for reducing buzz noise
Low noise: Vni = 1.2 µVrms (typ.)
· Built−in power amplifier
OCL (output condenser−less)
Voltage gain : GV = 31dB (typ.)
· Built−in motor governor
Current proportion type
· Built−in DC volume control function
DC volume maximum attenuation : ATT = 82dB (typ.)
· Built−in volume limiter function
· Built−in bass boost function
· Operating supply voltage range (Ta = 25°C)
PRE + PW: VCC (opr) = 1.8~3.6V
GVN: VCC (opr) = 2.1~3.6V (motor voltage = 1.8V)
· Low supply current (VCC = 3V, f = 1kHz, Ta = 25°C, typ.)
PRE + PW
Weight: 0.32g (typ.)
No Signal
R_L = 16Ω
R_L = 32Ω
9.5mA
9.5mA
GVN: ICC = 2.5mA
Output Power
0.1mW × 2
0.5mW × 2
14.2mA
19.5mA
12.5mA
16.5mA
1
2002-10-30