东芝 TA8276HQ 功放音效芯片技术资料

汽车音响内置音效IC TA8276HQ 歌乐机头OEM芯片电路图技术资料

TA8276HQTOSHIBA Bipolar Linear Integrated Circuit Silicon MonolithicTA8276HQMax Power 35 W BTL × 4 ch Audio Power ICThe TA8276HQ is 4 ch BTL audio power amplifier for car audio application. This IC can generate more high power: POUTMAX = 35 W as it is included the pure complementary PNP and NPN transistor output stage. It is designed low distortion ratio for 4 ch BTL audio power amplifier, built-in stand-by function, muting function, output clipping detection and diagnosis circuit which can detect output to VCC/GND short and over voltage input mode. Additionally, the AUX amplifier and various kind of protector for car audio use are built-in.Weight: 7.7 g (typ.)Features High power : POUTMAX (1) = 35 W (typ.) (VCC = 14.4 V, f = 1 kHz, JEITA max, RL = 4 ) : POUTMAX (2) = 31 W (typ.) (VCC = 13.7 V, f = 1 kHz, JEITA max, RL = 4 ) : POUT (1) = 23 W (typ.) (VCC = 14.4 V, f = 1 kHz, THD = 10%, RL = 4 ) : POUT (2) = 20 W (typ.) (VCC = 13.2 V, f = 1 kHz, THD = 10%, RL = 4 ) 1. Built-in output clipping detection and diagnosis circuit (pin 25) Low distortion ratio: THD = 0.02% (typ.) (VCC = 13.2 V, f = 1 kHz, POUT = 5 W, RL = 4 ) Low noise: VNO = 0.10 mVrms (typ.) (VCC = 13.2 V, Rg = 0 , GV = 26 dB, BW = 20 Hz~20 kHz) Built-in stand-by switch (pin 4) Built-in muting function (pin 22) Built-in AUX amplifier from single input to 2 channels output (pin 16) Built-in various protection circuit : Thermal shut down, over voltage, out to GND, out to VCC, out to out short, speaker burned Operating supply voltage: VCC (opr) = 9~18 VNote 1: Install the product correctly. Otherwise, it may result in break down, damage and/or degradation to the product or equipment. Note 2: These protection functions are intended to avoid some output short circuits or other abnormal conditions temporarily. These protect functions do not warrant to prevent the IC from being damaged. - In case of the product would be operated with exceeded guaranteed operating ranges, these protection features may not operate and some output short circuits may result in the IC being damaged.12004-05-10

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