TA8145FN

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8145FN Stereo Headphone Amplifier (1.5V USE) The TA8145FN is a stereo headphone power amplifier IC, which is developed for low voltage operation (1.5V). It is especially suitable for a stereo headphone cassette player. Features · OCL (output condenser−less) · Built−in a ripple filter · GV = 22dB (typ.) · Output power: Po = 8mW (typ.) (VCC = 1.5V, RL = 16Ω, THD = 10%, Ta = 25°C) · Built−in a power switch. · Built−in a power amplifier mute. · Excellent ripple rejection ratio: RR = 52dB (typ.) · Low noise: Vno = 27µVrms (typ.) · Operating supply voltage range (Ta = 25°C) VCC (opr) = 0.9~2.2V Block Diagram Weight: 0.09g (typ.) TA8145FN 1 2002-10-30 Terminal Explanation Terminal Voltage: Typical Terminal Voltage at no Signal with Test Circuit (VCC = 1.2V, Ta = 25°C) Terminal No. Name Function Internal Circuit Power on / off switch. 1 PW SW VCC: Power ON GND / OPEN: Power OFF Muting switch. 16 MT SW VCC: Muting OFF GND / OPEN: Muting ON TA8145FN Terminal Voltage (V) — — 2 INA Input of power amplifier 4 INB 15 OUTA Output of power amplifier 12 OUTB 3 INC Input of center amplifier 13 OUTC Output of center amplifier 0.75 0.6 0.75 0.6 5 VREF Reference voltage 6 PRE GND — 7 RF IN Ripple filter terminal 0.75 —0 1.2 2 2002-10-30 Terminal No. Name Function 8 RF out Ripple filter output. Internal Circuit TA8145FN Terminal Voltage (V) 1.1 9 Comp Phase-compensation terminal for a ripple filter circuit....