TA2145AF ,3 V Stereo Headphone Amplifier (3 V USE)Features Built-in preamplifier Input coupling condenser-less Built-in input capacitor for reduc ..
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TA2145AF ,3 V Stereo Headphone Amplifier (3 V USE)TA2145AF TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2145AF 3 V Stereo Headph ..
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TA2145AF
3 V Stereo Headphone Amplifier (3 V USE)
TA2145AF TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2145AF 3 V Stereo Headphone Amplifier (3 V USE)
The TA2145AF is developed for play-back stereo headphone
equipments (3 V USE).
It is built in dual preamplifiers, dual OCL power amplifiers,
motor governor, DC volume control and preamplifier on/off switch
etc.
Features Built-in preamplifier
Input coupling condenser-less
Built-in input capacitor for reducing buzz noise
Low noise: Vni = 1.2 µVrms (typ.)
Preamplifier on/off switch. Built-in power amplifier
OCL (Output condenser-less)
Voltage gain: GV = 31 dB (typ.) Built-in motor governor (Current proportion type) Built-in DC volume control function
ATT = 82dB (Ta = 25°C, typ.) Built-in bass boost function Low supply current (VCC = 3 V, f = 1 kHz, PRE OUT = 100 mVrms, Ta = 25°C, typ.) Quiescent supply current
PRE + PW: ICCQ = 8.5 mA
GVN: ICC = 2.5 mA 0.1 mW × 2 ch output
ICC1 = 9.8 mA (RL = 32 Ω)
ICC2 = 10.5 mA (RL = 16 Ω) 0.5 mW × 2 ch output
ICC3 = 14.0 mA (RL = 32 Ω)
ICC4 = 16.5 mA (RL = 16 Ω) Operating supply voltage range (Ta = 25°C)
VCC (opr) = 1.8~3.6 V
GVN VCC (opr) = 2.1~3.6 V (Motor voltage = 1.8 V)
Weight: 0.32 g (typ.)
