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CDCE62005: 按默认配置,时钟没有输出,参考时钟的引脚总是为低电平

Part Number: CDCE62005

按照默认配置进行配置之后,时钟没有输出,

采用的是sec_ref作为参考时钟,但是sec_ref引脚的电平总是为0.8V,#SYNC  #POWER_DOWN  强制上拉为高电平,REF_SEL下拉为低电平,其余电路均按照官网上DAC348X评估板进行设计

对寄存器的配置为

parameter ram0 = 32'h81840320;
parameter ram1 = 32'h81840301;
parameter ram2 = 32'h81860302; 
parameter ram3 = 32'hEB860303;
parameter ram4 = 32'h01860314;
parameter ram5 = 32'h101C0AA5;
parameter ram6 = 32'h04BE19A6;
parameter ram7 = 32'hBD0037F7;
parameter ram8 = 32'h40009D98;

请求TI工程师帮助