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DP83TC812R-Q1: DP83TC812R-Q1芯片无输出

Part Number: DP83TC812R-Q1
Other Parts Discussed in Thread: TIDA-020047

我们在使用网口芯片DP83TC812R-Q1时发现,DP83TC812R-Q1无输出,还请帮忙一起分析一下,测量VDDIO、VDDMAC、VDDA、VSLEEP连接3.3V均正常,WAKE上拉3.3V正常,INH上拉3.3V正常,RESET/上拉3.3V正常;XI、XO连接25MHz晶振波形正常;使用示波器测量CLKOUT脚无输出;电路如上图所示,为TIDA-020047官方设计;