The CPLL58-1800-1860 from Crystek Corporation is a Frequency Synthesizer with Frequency 1.8 to 1.86 GHz, Step Size 10 KHz, Output Power 3 to 6 dBm, Harmonics -20 to -15 dBc, Supply Voltage 3.3 to 5 V. Tags: Surface Mount, VCO + PLL Frequency Synthesizer. More details for CPLL58-1800-1860 can be seen below.