Is there any extra information regarding loop filter on eval board(ug109) of adf4350?
is there any provision on board to program it from lpc2148 using spi?
If you wish to use your own SPI interface, simply solder directly to the CLK, DATA and LE testpoints.
We only support the USB interface.
The loop filter itself is not considered programmable, as it uses external passive components.
Parameters like the charge pump current will have an effect on the filter. It is best to download ADIsimPLL for this.
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