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随着家庭影院逐渐兴起,市场上各种名牌AV功放,琳琅满目,但其价格较贵,对于一般经济和居住条件不宽裕的普通家庭而言很难接受。采用菲利浦公司TDA1521A功放集成电路(9个引脚单列直插式塑封结构),做一个功率放大器.该集成电路外围元件少,是一种双高保真音频功率放大器。该功放集成块具有以下特点:1.输出功率大;2.通道间增益平衡好;3.输出和地之间失调电压低;4高保真符合国际电工委员会ICE268标准和DIN45500标准;5.有短路过载保护;6.有过热保护等。
With the gradual rise of home theater, a variety of brand-name AV amplifier on the market, an array of, but its more expensive, for the general economy and living conditions are not well-off ordinary families is difficult to accept. Using Philips TDA1521A power amplifier integrated circuit (9-pin single in-line plastic package structure), to make a power amplifier.The integrated circuit less peripheral components, is a dual high fidelity audio power amplifier. The amplifier block has the following characteristics: 1. The output power is large; 2. Gain balance between channels is good; 3. The offset voltage between the output and ground is low; 4. The fidelity meets ICE268 standard and DIN45500 standard of the International Electrotechnical Commission; Overload protection; 6 overheat protection.