JAJSDN8C March 2017 – April 2019 LMX2594
The SYNC pin allows one to synchronize the LMX2594 such that the delay from the rising edge of the OSCin signal to the output signal is deterministic. Initially, the devices are locked to the input, but are not synchronized. The user sends a synchronization pulse that is reclocked to the next rising edge of the OSCin pulse. After a given time, t1, the phase relationship from OSCin to fOUT will be deterministic. This time is dominated by the sum of the VCO calibration time, the analog setting time of the PLL loop, and the MASH_RST_CNT if used in fractional mode.
|OUTA_MUX = OUTB_MUX = 1 ("VCO")||Don't Care||1|
|All Other Valid Conditions||Divisible by 3, but NOT 24 or 192||SEG0 × SEG1 = 6|
|All other values||SEG0 × SEG1 = 4|