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STW81200 PLL - What configuration for 10 MHz external clock?

LoicJ
Associate

Hello,

 

I've designed a board based on the EVB schematics and layout. I need to output a frequency of 1250 MHz.

I managed to make it work with the on-board 100 MHz oscillator, and it works well with 25 MHz external clock, but I can't find a way to use it with a 10 MHz clock...

I tried both STW81200 GUI for EVB and STW81200 but I can't find a way to extract all registers table with the exported value... 

 

I would be interested for a complete register table to operate at 10 MHz input clock.

 

Thanks

1 REPLY 1
LoicJ
Associate

Here is the current STW81200 configuration I set for

10 MHz reference clock input; 1250 MHz clock output on RF1 (RF2 is disabled); Output power set to +1 dBm :

ST0 : 0x03E000FA
ST1 : 0x04400000
ST2 : 0x055FFFFF
ST3 : 0x04080001
ST4 : 0x008513BD
ST5 : 0xFFFFE00A
ST6 : 0x00041000
ST7 : 0x01002004
ST8 : 0x04000002
ST9 : 0x00000000

I hope it helps to find what is wrong.

Thanks