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Not getting Lock in HMC833LP6GE

Question asked by ChetanM on May 23, 2016
Latest reply on May 30, 2016 by dyoung1

Hi,

 

 

 

We have designed a board with 5 nos. of HMC833LP6GE and 1 no. of

HMC834LP6GE.

 

The reference frequency for all of the 6 PLL devices is 100MHz.

 

We need to generate several frequencies from the above devices. We tried

generating 2000MHz, 2700MHz etc in integer mode but we are not getting lock.

 

We are configuring HMC833 with the following:

 

 

 

0x1                         0x2

 

0x2                         0x1

 

0x5                         0x1628

 

0x5                         0x60a0

 

0x5                         0x0

 

0x6                         0x3ca

 

0x7                         0x14d

 

0x8                         0xc1beff

 

0x9                         0x003264

 

0xa                         0x2046

 

0xb                         0x7c1e1

 

0xc                         0x0

 

0xd                         0x0

 

0xe                         0x0

 

0xf                          0x1

 

0x3                         0x1b

 

 

 

Please suggest on the above configuration and appropriate settings to

achieve lock.

 

 

 

Regards,

 

Chetan Maheshwari

 

CoreEl technologies

 

 

 

 

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