PLL synthesizerCrystek's CPLL66-2416-2553 PLL/Synthesizer operates from 2416 MHz to 2553 MHz with a typical Step Size of 100 kHz. It is housed in a 0.6-in. x 0.6-in. x 0.15-in. SMD package. According to the company, its PLL/synthesizer construction essentially wraps a VCO around a PLL in a package that is only marginally larger than a VCO on its own, and significantly smaller than separate VCO/PLL modules. The CPLL66-2416-2553 is a complete PLL/synthesizer needing only an external frequency reference and supply voltages for the internal PLL (phase lock loop) and VCO (voltage controlled oscillator).