AD9914
Recommended for New Designs
The AD9914 is a direct digital synthesizer (DDS) featuring a 12-bit DAC. The AD9914 uses advanced DDS technology, coupled with an internal high speed,...
Datasheet
AD9914 on Analog.com
AD9915
Recommended for New Designs
The AD9915 is a direct digital synthesizer (DDS) featuring a 12-bit DAC. The AD9915 uses advanced DDS technology, coupled with an internal high speed,...
Datasheet
AD9915 on Analog.com
Hi
I am planning to use 9 AD9914 chips as signal generators for a wideband system (1 main chip and 8 subordinate chips) to generate RF signals between 0.1-1.4 GHz and will need to synchronize these using an external clock generator connected to the main chip.
Reading through the datasheet there's no mention of the system clock frequency being limited while using an external reference signal but reading through the AD9914 FAQ found here: What is the difference between the AD9914 and AD9915? it mentions AD9914 being limited to 2.5 GHz when using the multi-chip sync. Would this mean i am effectively locked between using a REF CLK of between 500 MHz and 2.5 GHz?
I also wonder if it is possible to control multiple AD9914 using one microprocessor and the chip select bar or if it is recommended to use one microprocessor per AD9914 instead when controlling the frequency and phase of the outgoing signals?
