Epson offers SPXOs in various package sizes and types, frequency ranges, output types, tolerances and voltages from 1.2V to 5.5V. These SPXOs can also be referred to as “fixed frequency” since the frequency output is not programmable. The small SG-3030/3040LC, SG-210STF, ST-210S*H, SG-770 and SG-771PCD internal crystal is made by the QMEMS process. Additional  details on the two newest products are discussed in the next few slides.