SCH101 series key features ? double-oven performance in a single-oven design ? unmatched wide temperature range stability ? ultra-low phase noise ? temperature stability as low as 0.2 ppb common applicatons ? test instrumentaton ? satcom terminals ? broadcast reference standard ? military weapon/communicaton systems sofware compensated ocxo doc. #: SCH101-3p-ss rev: - functonal descripton through the implementaton of esterline research and design's new patent-pending m-sac technology, the new sch series of sofware-compensated ocxos is able to provide unparalleled temperature performance over the industrial temperature range and beyond. in additon, no other device on the market can ofer a comparable performance rato of temperature stability to input power. the SCH101 provides extremely low phase noise perfor - mance for applicatons where quiet operaton is paramount. unlike traditonal ocxo products, sch-series ocxos are compensated for trim efect to ensure that temperature stability performance is maintained as the frequency is adjusted to correct for drif over tme (aging). the sch-series of ocxos also enjoys a higher immunity to orientaton and airfow efects, as compared to other contemporary ocxo designs. the standard co8, or euro package makes the sch-series ocxo ideal for upgrading existng applicatons to provide improved temperature stability or to expand the applicatons operatonal temperature range. p
SCH101 series sofware-compensated ocxo 2 doc. #: SCH101-3p-ss rev: - parameter minimum typical maximum units notes frequency range 8 13 mhz operatonal temperature range -45 +85 c frequency vs. temperature 0.2 1.0 ppb see ordering info for other optons. temperature slope 5 ppt/c frequency vs. supply 0.3 ppb hysteresis tbd ppb 10 c/hour warm-up 5 minutes 100 ppb of 1-hour frequency @ 25 c retrace 10 tbd ppb 24 hours of; 30 minutes on aging 0.5 ppb/day 50 ppb/1 st year 30 ppb/2 nd year acceleraton sensitvity 1 ppb/g allan deviaton 2e-12 rms supply voltage 4.75 5.0 5.25 volts input power 2.6 wats during warmup 0.8 1.0 wats steady state output characteristcs output level high (voh) 3.0 volts output low (vol) 0.1 volts duty cycle 40 50 60 % rise/fall time 6 ns voltage control characteristcs voltage range 0.0 4.5 volts pullability 0.40 0.50 ppm input z 10k ohms phase noise characteristcs 1 hz ofset -112 dbc/hz 10 hz ofset -145 dbc/hz 100 hz ofset -155 dbc/hz 1 khz ofset -162 dbc/hz 10 khz ofset -169 dbc/hz 100 khz ofset -172 dbc/hz standard specifcatons: ordering informaton: SCH101- xx m xxxxxx - z - e nominal frequency (8-13 mhz) external frequency adjust e: elect (standard) d: digital (consult factory) temp stability (ppb) x: 1.0 y: 0.5 z: 0.2 preliminary
doc. #: SCH101-3p-ss rev: - SCH101 series sofware-compensated ocxo 3 outline drawing: 15.24 1.52 0.76 1.057 25.4 15.24 17.78 8.89 14.45 pin connections 1 - efc 2 - vref 3 - vcc 4 - output 5 - ground 5 4 3 2 14.86 max 15.62 max 37.85 uni ts: mm tol: 0.25 pin numbers are for reference only. 1 *pin numbers are for reference only. units: inches tol: 0.010 pin number pin function 1 efc 2 v ref 3 v cc 4 output 5 ground preliminary preliminary
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