TA2002FN

TA2002F / FN TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2002F,TA2002FN Stereo Headphone Amplifier (3V USE) The TA2002F, TA2002FN are developed for play−back stereo headphone equipments (3V use). They are built in dual auto−reverse preamplifier, dual OCL power amplifier, and a ripple filter. Features Power amplifier stage · OCL (output condenser−less) · Low noise: Vno = 22µVrms (typ.) · Excellent ripple rejection ratio: RR = 62dB (typ.) · Voltage gain: GV = 27dB (typ.) · Built−in a power amplifier mute · Built−in input capacitor for reducing buzz noise Preamplifier stage · Auto−reverse with F / R control switch · Input coupling condenser−less · Low noise: Vni = 1.3µVrms (typ.) · Built−in a preamplifier mute · Built−in input capacitor for reducing buzz noise Total · Built−in a ripple filter Weight SSOP24−P−300−1.00 SSOP24−P−300−0.65A · Built−in a power switch · Low quiescent current : ICCQ = 11.5mA (typ.) (VCC = 3V, Ta = 25°C) · Operating supply voltage range: VCC (opr) = 1.8~4.5V (Ta = 25°C) : 0.32 g (typ.) : 0.14 g (typ.) 1 2002-10-30 TA2002F / FN Block Dirgram VCC −− − + 1 PRE GND INA−F 2 3 + −INA−R NFA4 5 PRE OUTA 6 PW INA −+ 7 RF IN OFF 8 ON PW SW ON 9 OFF PW F MUTE 10 R F/R SW 11 OUTA 12 PW GND PREA PWA SW PREB PWB Ripple Filter PWC 24 VREF 23 INB−F 2222 INB−R − + 21 NFB 20 PRE OUTB 19 PW INB ON 18 PRE SW OFF 17 RF OUT + 16 BASE 15 VCC 14 OUTB 13 OUTC + RF OUT VCC RL RL 2 2002-10-30 TA2002F / FN Ter...