REC / PB System Dual Pre−amplifier (1.5 / 3V USE)

The TA8155FG and TA8155FNG are REC / PB system dual pre amplifier ICs, which are developed for low voltage operation (1.5 / 3V use). These are especially suitable for a stereo headphone cassette player.

FEATUREs
•  Built−in dual playback amplifiers.
   Input coupling condenser−less.
   Built−in capacitor for buzz noise.
•  Built−in dual buffer amplifiers.
   For radio signal inut.
   Monitor for REC mode.
•  Built−in dual microphone amplifiers.
   Built−in an ALC circuit for MIC−REC mode.
   Attack time. : 0.1s (typ.)
   Recovery time. : 3.5s (typ.)
•  Built−in dual recording amplifiers.
   Single−end output type.
•  Built−in a power switch.
•  Low quiescent current. (VCC= 1.2V, Ta = 25°C)
   PB mode .................... ICCQ2= 2.6mA (typ.)
   Radio mode ............. ICCQ3= 2.4mA (typ.)
   Radio−REC mode ... ICCQ4= 3.0mA (typ.)
   MIC−REC mode ........ ICCQ5= 4.5mA (typ.)
•  Low power dissipation.
   PB mode : 2.9mW (typ.)
   MIC−REC mode : 8.9mW (typ.)
•  Operating supply voltage range. (Ta = 25°C)
   VCC (opr)= 0.9~4V
   VCC (opr) (REC)= 1.8~4V