Power-Up Phase Determinism Using Multichip Synchronization Features In Integrated Wideband DACs And ADCs

By Michael Jones, Michael Hennerich, and Peter Delos, Analog Devices

The integration of multiple digital signal processing (DSP) blocks, wideband digital-to-analog converters (DACs), and wideband analog-to-digital converters (ADCs) within a single monolithic chip is now enabling the offload of power hungry FPGA resources to allow for smaller footprint, lower power, increased channel count platforms that can sample at higher rates than previously achievable. Along with this new capability comes novel multichip synchronization (MCS) algorithms within these integrated circuits (ICs), which allows users to achieve a known (deterministic) phase for all channels when powering the system or otherwise making software modifications to the system.