Hi, I explore the possibility of AD9789 and I did not get to use a chip embedded mapper and SRRC. Instead of strips of the spectrum, I see only the output sine with a frequency of NCO.To test it I built a DDS with FPGA and send to DAC the data in 8-bit wide real mode on 32-bit bus.I have connected all bus, clock and power.
After powerd on I have follow Page 62 to init DAC without any problem.
The DAC is so configured for CHANNELIZER MODE:
Fdac = 864 MHz
Foutput RF central = 338 MHz
Interpolator factor is 4 (2^2, Filter 2 = bypass,Filter 3 = bypass,Filter 4 = bypass)
DCO output fequency = 27 MHz (Fdacclk / 32)
FS buad rate is 6.75 MHz (P/Q = 1)
Download code as an attachment.
Please help my find the error.