LM833实际放大倍数为4倍达不到设计的20倍,是什么问题呢?
附件是相关电路,谢谢!
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
HI,
我这边OPAout_LA-直接接的信号分析仪,也相当于负载了,
查到了,
是I/V那里,输入I被衰减了,导致AUDIOcon_LA-的幅值偏低(衰减时I<4mA,导致V低于设计的880mV),I调试正常后,得到的OPAout_LA-是放大了20倍,
但是就有个疑问了:
幅值偏低怎么会影响放大器的工作?是达不到放大器某个输入限制条件?