AD9361 PLL Notes

Primary Ref: AD9361 Reference Manual

Some notes on research I was doing on the AD9361.

The Main PLL block generates a frequency, locked to the external clock reference, from 6 GHz to 12 GHz. This then goes to a divider chain.

The result of the divider chain is an I/Q clock that becomes the output center frequency.

The synthesizer is configured by registers 0x270 through 0x290

The code

The AD9361 frequencies/clocks/PLLs are configured using the (no-os) function:

https://github.com/analogdevicesinc/no-OS/blob/cfe610d403b4f6bc988bc2ee1dd7e7e221b0795e/drivers/rf-transceiver/ad9361/ad9361_util.c#L119

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