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HMC835LP6GE Charge Pump Phase Offset register

Question asked by sss on Dec 12, 2016
Latest reply on Dec 19, 2016 by dyoung1

Hi all,

 

Which is correct ?

 

1.3.1.3.3 Charge Pump Phase Offset

The required CP offset current should never exceed 25 % of the programmed CP current.

It is recommended to enable the Up Offset and disable the Down Offset by writing Reg 09h[22:21] = ‘10’b.

 

2.11 Reg 09h Charge Pump Register 547264h

[21] R/W Offset UP enable  Sets Direction of Reg 09h[20:14] Up, 0- UP Offset Off
[22] R/W Offset DN enable  Sets Direction of Reg 09h[20:14] Down, 0- DN Offset Off

 

I think ,

"enable the Up Offset and disable the Down Offset by writing Reg 09h[22:21] = ‘10’b" is incorrect,

"writing Reg 09h[22:21] = ‘01’b" is correct.

 

Best regards,

sss

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