XDIMAX Products Forum

Hello all,

I built a frequency generator from a kit as found here: http://midnightdesignsolutions.com/dds60/index.html
It is based on the popular (at least with radio amateurs) Analog Devices AD9851 DDS chip http://www.analog.com/en/rfif-components/direct-digital-synthesis-dds/ad9851/products/product.html

My hardware is a SUB-20EB with JP1 and JP5 in position 2-3 for I2C and SPI 5V configuration

Q. Can I program the AD9851 board using only the SUB-20?

Q. If yes, what pins go where? I have no experience with SPI, only I2C

Thanks in advanced,

Ion

Q. Can I program the AD9851 board using only the SUB-20?
Q. If yes, what pins go where? I have no experience with SPI, only I2C

Yes.
You need to read data sheet. ON SUb-20 side SPI signals are SCK (clock) MOSI (Data Out) MISO(Data In) SS(Slave Select)
I'm not sure but to my understanding it should be
SCK --- W_CLK
MOSI --- DATA7
SS0 --- FQ_UD
See page 16

Thanks,

I'll give a try! Name convention was a bit confusing.

I.