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AN7173是日本松下公司最新出品的高品质音响集成电路。用它制作的放大器除线路简单新颖外还有以下特点:①输入电平信号低而输出功率很大;同时由于其输入阻抗高,输出阻抗低,所以放大器性能较好;②其内部含有两组BTL电路,因此在低压状态下就有很大的输出功率;③其内部设有过压及短路保护电路;④其输入灵敏度高,所以可直接用作MIC及Walkman的放大器。
AN7173 is the latest Japanese company Panasonic high-quality audio integrated circuits. Amplifier made with it in addition to simple and novel lines also has the following characteristics: ① low input signal level and output power is great; at the same time due to its high input impedance, low output impedance, so the amplifier better performance; ② its internal contains two groups BTL circuit, so there is a great output power in the low voltage state; ③ its internal with over-voltage and short circuit protection circuit; ④ its high input sensitivity, it can be used directly as MIC and Walkman amplifier.