Clock generation for AD9680-LF1000EBZ Evaluation board and Third part FPGA development board

Question

Hi,
We are planning to purchase an AD9680-LF1000EBZ evaluation board which is to be interfaced with our third-party FPGA development board. My question is: whether the onboard clock generator of the AD9680-LF1000EBZ evaluation board is sufficient for all the required clock signals (Like sample and reference clock for ADC and clocks for FPGA) to carry out DSP with JESD204B interface using the above boards. Or is an additional clock evaluation board needed? If yes then, please suggest a suitable and economical model of it. I explored the ADI website and found the following clock evaluation boards but not sure which one is the most suitable one. These boards are AD9525, AD 9528, AD9526-0, and HMC 7044. Please help. Thanks.

JAlipio · Accepted Answer

Hi PRA360, 
 Thanks for your interest in AD9680. 
 All AD9680 with board revision 9680CE02B (LF) have an on-board crystal oscillator for the sample clock input only. The other clock input (Reference Clock) requires a separate clean, low jitter clock source, such as LTC6951, LTC6952, HMC7044, or AD9528 ( AD9680 Datasheet and Product Info (Product Recommendations) | Analog Devices ) . 
 HMC7044 has the ultra-low jitter clock source and applicable for JESD204B clock generation. 
 For more information with the operation of AD9680, please see the user guide: EVALUATING THE AD9680/AD9690/AD9234 ANALOG-TO-DIGITAL CONVERTER [Analog Devices Wiki] . 
 
 Regards, 
 Adrian)

Electronic Design Services - PartnerZone

Products In This Thread

Clock generation for AD9680-LF1000EBZ Evaluation board and Third part FPGA development board