我们在做一个设计,用到cdce62005,输出时钟是155.52,输出也是155.52,用cdce来做时钟clean,我在配置cdce62005的时候,想把环路带宽设置成100hz,但是ratio pole T3 to T1这个选项设置总是出问题,一直显示是 1,
请帮忙看看是什么问题,谢谢
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我们在做一个设计,用到cdce62005,输出时钟是155.52,输出也是155.52,用cdce来做时钟clean,我在配置cdce62005的时候,想把环路带宽设置成100hz,但是ratio pole T3 to T1这个选项设置总是出问题,一直显示是 1,
请帮忙看看是什么问题,谢谢
我用CDCE62005的EVM software简单配置了下,得到的寄存器结果为:
REGISTERS
0 EB020320
1 68840301
2 68860302
3 68860303
4 68860314
5 100C0BE5
6 04BE02E6
7 BD0037F7
8 80001808
PORTS
0 DD
1 FF
2 DF
3 F9
INPUTS
PRI 155.52
SEC 0
AUX 0
EXTERNAL COMPONENTS
C4 1
R4 1
C5 1
另外,几个分频系数分别为:input divider=4,feedback divider=24. VCO range=1866.24MHz,output divider=6