HMC7043 Datasheet, PDF (22/44 Pages) Analog Devices – JEDEC JESD204B support

Data Sheet
RF_SYNC
RESET
SYNC
SETUP
PULSE
GENERATOR
SETUP
NOTIFY CHANNEL FSM
WHAT TYPE OF EVENT
IS COMING
SYNC
REQUEST
CLEAR
WAIT
STARTUP
PULSE
GENERATOR
TIMEOUT?
POWER DIVIDERS/SYNC BLOCKS,
PAUSE BLOCKS, RESET LATCHES
REMOVE LATCH RESET,
PREPARE TO START CLOCKS
START CLOCKS,
WITH CLEAN TIMING,
SMALL PIPELINE DELAY
WAIT UNTIL THE NUMBER OF
PULSE GENERATOR CYCLES
EXPIRES
DONE
REMOVE POWER
PULSE
GENERATOR
REQUEST
Figure 26. Synchronization FSM Flowchart
FSM STATE
STARTUP PULSE GENERATOR = 2
DONE
DIVIDER CHANNEL
IF MUTE SIGNAL ARRIVES QUICKLY
RELATIVE TO SIGNAL TRAIN,
FIXED NUMBER OF CLOCK INPUT CYCLES
NO RUNT PULSE
FROM STATE CHANGE TO STARTUP, AND
ANY INTENTIONAL DIGITAL/ANALOG OFFSET
FSM STATE
STARTUP PULSE GENERATOR = 2
DONE
DIVIDER CHANNEL
IF CONTROL IS TOO LATE
RELATIVE TO SIGNAL TRAIN,
THERE IS A RUNT PULSE
Figure 27. Start-Up Behavior of an Example Divider Configured as a Pulse Generator
HMC7043
Rev. B | Page 21 of 43