I'm a DFAE in Japan. The customer is thinking of adopting ADF4154 or ADF4156, but he wants to use the input frequency at 78MHz.In this case, is it possible to operate at the low frequency if the slew rate is kept at 400V / µs?
My customer is asking if ADI can make the firmware available for the Cypress PSOC (CY7C68013) microcontroller that does the conversion from USB to serial that is on the ADF4154 PC interface board (parat number EVAL-SDP-CS1Z)?
I have a current prototype design with a ADF4154, the ability to achieve quick settling (<20us) using the fast-lock feature is critical, for production I would like to add a lock detect indication and so am considering a replacement part.
ADI PLLs are typically programmed using a three-wire serial interface, where the serial programming data is clocked into an internal shift register and is then latched onto the internal data bus on a rising edge of latch enable (see SPI Programming section…