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ads1210输出频率不对

Other Parts Discussed in Thread: TXB0104

ads1210输入晶振频率是3.6864MHz,TMR是16,DR是512正常输出频率是3686400*16/512/512=225hz,现在正常工作的芯片输出确实是225hz,但是不正常的芯片输出是45hz,差了5倍,但是计算公式里没有是5的整数倍的参数,请问哪个参数有问题会使输出差5倍呢,多谢!