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TPA2005D1功放问题

Other Parts Discussed in Thread: TPA2005D1

你好,我选用TPA2005D1做SIM800C的音频输出功放,然后接喇叭,一点声音都没有

如果SIM800C直接接喇叭,是有声音的,声音很小,电路图如下,请大神帮忙看看,谢谢了