Specification AXIOM10 Oscillator type : OCXO in SMD package Parameter Frequency range Standard frequencies Frequency stability Initial tolerance vs. temperature (steady state) Issue: 04 Date: 2005-07-15 min. 10 typ. max. Unit MHz MHz ppm ppb ppb ppb ppb °C °C °C ppb ppb ppb Condition Note 2 120 10.0 / 12.8 / 19.44 ± 500 ± 200 ± 100 ± 50 +80 +70 +60 ± 10 ± 10 ± 200 operating temperature range -40 -20 -10 @+25°C, VC= center Option II = “200” Option II = “100” Option II = “50” Option II .