AN7062N

ICs for Audio Common Use AN7062N High Voltage Input Amplifier Circuit for Hi-Fi Power Amplifier s Overview The AN7062N is a high voltage integrated circuit designed for pre-driver of 60W-class Hi-Fi audio amp. Stereo operation is enabled due to two amplifiers built-in. 1 2 3 21.7±0.3 4 5 6 7 8 9 6.3±0.25 3.8±0.25 (3.45) 18 17 16 15 14 13 12 11 10 0.51min. 2.54 0.3 – 0.2 + 0.1 5 Unit : mm 0.5±0.1 1.2±0.25 14 15 16 17 s Features High voltage Low noise : Vni = 2.5µV (typ.) Low distortion : THD = 0.003% (typ.) Good channel separation Wide operating supply voltage range 3 ~ 15˚ 7.62±0.25 18-Lead DIP Package (DIP018-P-300E) s Block Diagram +VCC 4 5 6 7 (L.F.B) 8 9 11 (L.F.B) 12 13 Current Mirror Emitter Follower Emitter Follower Current Mirror Cascade Bootstrap Current Mirror Cascade Bootstrap 3 Differential Amplifier Current Source Differential Amplifier 2 1 GND 18 –VCC1 10 –VCC2 AN7062N s Absolute Maximum Ratings (Ta= 25˚C) Parameter Supply Voltage Supply Voltage Supply Current Power Dissipation Operating Ambient Temperature Storage Temperature Symbol + VCC – VCC ICC PD Topr Tstg ICs for Audio Common Use Rating + 74 – 16 10 800 – 25 ~ + 75 – 55 ~ + 150 Unit V V mA mW ˚C ˚C s Electrical Characteristics (VCC = ± 70V, f = 20kHz, Ta = 25˚C) Parameter Plus Side Supply Current Minus Side Supply Current Output Noise Voltage Output Noise Voltage Total Harmonic Distortion Open Circuit Voltage Gain Symbol Itot – 1 Itot – 2 Vno1 Vno2 THD GVO Vi = 0mV Vi = 0...