应用功能： 双声道低噪声前置放大器. The LM387 is a dual preamplifier for the amplification of low level signals in applications requiring optimum noise performance.Each of the two amplifiers is completely independent,with an internal power supply decoupler-regulator, providing 110 dB supply rejection and 60 dB channel separation. Other outstanding features include high gain (104 dB),
