The ROM1490PS from Rakon is a OCXO with Frequency 10 to 50 MHz, Supply Voltage 2.7 to 5 V, Tuning Voltage 0.25 to 2.25 V (Control), Output_Voltage 1 to 2.5 V, Output Load 15 pF. Tags: Surface Mount, Low G-Sensitivity. More details for ROM1490PS can be seen below.