I'm considering getting the ADL9910 eval board to generate random hopping single tones. Is it possible to program the hop in real-time with < 1usec latency? Thanks.
Sorry for the late response. If you want to frequency hop by updating the frequency tuning word via SPI port, the max update rate is 40 x the SCLK period. The max SCLK is 70Mhz or 14ns. So, 14ns * 40 = 560ns. 40 represents a 32 bit FTW and 8 bits for the instruction byte.
Using the 16 bit parallel port has a much faster update but you're limited to 16 bit resolution which can be adjust up or down relative to the internal 32 bit frequency word.
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