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OPA564: OPA564使用问题

Part Number: OPA564

您好,最近我在使用OPA564做一个功放,按数据手册上的电路图焊好电路后,给它100kHz,0dBm的输入,接30dB衰减,用频谱仪测其功率为-17dBm。电路是按照数据手册图35接的。

感觉没有达到数据手册上的20Vpp@1.5A,本人新手,能否给我一点建议。