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DAC37J82: DAC37J82输出频点48M处杂散无法减弱

Part Number: DAC37J82


我们调试DAC37J82,现在204B接口连接正常,输出信号中心频点正常,但是两侧48M处杂散很高,无法消除,帮分析一下原因。

信号为72MHz,48M处杂散太大,各种尝试和配置都无法减弱,目前测试时钟、电源等无相关频点的干扰。