JAJSDN8C March 2017 – April 2019 LMX2594
The MULT is useful for shifting the phase-detector frequency to avoid integer boundary spurs. The multiplier allows a multiplication of 3, 4, 5, 6, or 7. Be aware that unlike the doubler, the programmable multiplier degrades the PLL figure of merit. This only would matter, however, for a clean reference and if the loop bandwidth was wide.