JAJSES4A February 2018 – April 2020 ADC08DJ3200
PRODUCTION DATA.
The clocking subsystem is largely responsible for achieving multi-device synchronization and deterministic latency. The ADC08DJ3200 uses the JESD204B subclass-1 method to achieve deterministic latency and synchronization. Subclass 1 requires that the SYSREF signal be captured by a deterministic device clock (CLK±) edge at each system power-on and at each device in the system. This requirement imposes setup and hold constraints on SYSREF relative to CLK±, which can be difficult to meet at giga-sample clock rates over all system operating conditions. The ADC08DJ3200 includes a number of features to simplify this synchronization process and to relax system timing constraints: