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TA2145AF Datasheet(PDF) 8 Page - Toshiba Semiconductor |
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TA2145AF Datasheet(HTML) 8 Page - Toshiba Semiconductor |
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8 / 16 page  TA2145AF 2002-04-19 8 Electrical Characteristics (Unless otherwise specified, VCC ==== 3 V, Ta ==== 25°C, f ==== 1 kHz, SW2: a, SW5: OPEN Preamplifier: Rg ==== 2.2 kW W W W, RL ==== 10 kW W W W, SW1: ON, SW3: b, SW4: b Power amplifier: Rg ==== 600 W W W W, RL ==== 16 W W W W, Vol.: max, SW1: OPEN, SW3: a, SW4: a Motor governor: Im ==== 100 mA, SW1: OPEN, SW3: b, SW4: b) Characteristic Symbol Test circuit Test condition Min Typ. Max Unit ICCQ1 ¾ Pre off, Vin = 0, Vol.: min, SW4: b, SW5: ON ¾ 7.5 13 Quiescent supply current ICCQ2 ¾ Vin = 0, Vol.: min, SW4: b ¾ 8.5 14.5 mA Open loop voltage gain GVO ¾ Vo = -10dBV, SW2: b ¾ 86 ¾ dB Closed loop voltage gain GVC ¾ Vo = -10dBV ¾ 35 ¾ dB Maximum output voltage Vom ¾ THD = 1% 550 720 ¾ mVrms Total harmonic distortion THD1 ¾ Vo = -10dBV ¾ 0.02 0.3 % Equivalent input noise voltage Vni ¾ Rg = 2.2 kW, SW1: OPEN BPF = 20 Hz~20 kHz, NAB (GV = 35dB, f = 1 kHz) ¾ 1.2 2.4 mVrms Cross ta k CT1 ¾ Vo = -10dBV ¾ 70 ¾ dB Ripple rejection ratio RR1 ¾ fr = 100 Hz, Vr = -20dBV ¾ 48 ¾ dB Preamplifier muting attenuation ATT1 ¾ Vo = -10dBV, SW5: OPEN ® ON ¾ 80 ¾ dB Preamplifier on voltage V18 (ON) ¾ 0 ¾ 0.5 V Preamplifier off voltage V18 (OFF) ¾ VCC = 1.8 V 1.5 ¾ 1.8 V Voltage gain GV ¾ Vo = -10dBV 29 31 33 dB Channel balance CB ¾ Vo = -10dBV -1.5 0 +1.5 dB Output power 1 Po1 ¾ RL = 16 W, THD = 10% 17 28 ¾ mW Output power 2 Po2 ¾ RL = 32 W, THD = 10% ¾ 20 ¾ mW Total harmonic distortion THD2 ¾ Po = 1m W ¾ 0.5 ¾ % Output noise voltage Vno ¾ Rg = 600 W, SW3: b BPF = 20 Hz~20 kHz ¾ 270 400 mVrms Ripple rejection ratio RR2 ¾ fr = 100 Hz, Vr = -20dBV ¾ 52 ¾ dB Cross ta k CT2 ¾ Vo = -10dBV ¾ 32 ¾ dB Dc volume maximum attenuation ATT2 ¾ Vo = -10dBV, SW4: a®b (Vol.: max ® min) ¾ 82 ¾ dB Supply current ICC ¾ Im = 0 ¾ 2.5 3.5 mA Saturation voltage VCE (sat) ¾ Im = 200 mA ¾ ¾ 0.5 V Reference voltage ,VREF ¾ Im = 100 mA 0.76 0.81 0.86 V Reference voltage fluctuation 1 ,VREF1 ¾ VCC = 2.1~3.6 V ¾ 0.25 ¾ %/V Reference voltage fluctuation 2 ,VREF2 ¾ Im = 25~250 mA ¾ 0.003 ¾ %/mA Reference voltage fluctuation 3 ,VREF3 ¾ Ta = -25~75°C ¾ 0.005 ¾ %/°C Current ratio K ¾ ¾ 34.5 37.5 40.5 Current ratio fluctuation 1 ,K1 ¾ VCC = 2.1~3.6 V ¾ 0.25 ¾ %/V Current ratio fluctuation 2 ,K2 ¾ Im = 25~250 mA ¾ 0.08 ¾ %/mA Current ratio fluctuation 3 ,K3 ¾ Ta = -25~75°C ¾ 0.005 ¾ %/°C |
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