REVISIONS REVISION 1.0 DESCRIPTION APPROVED Preliminary Luis Vargas DATE 8/13/2010 GENERAL RELEASE DOCUMENT CONSULT FACTORY FOR CURRENT REVISION SPECIFICATION CONTROL DRAWING PREPARED BY: DATE UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN INCHES. TOLERANCES: 3 PLACE DECIMAL = .005 2 PLACE DECIMAL = .02 1 PLACE DECIMAL = .
1.0 SCOPE This specification establishes the detail requirements for low profile hybrid, hermetically sealed, SineWave output Voltage Control Crystal Oscillators (VCXO) for use in space flight missions. 2.0 APPLICABLE DOCUMENTS The following documents of the latest issue form a part of this drawing to the extent specified herein. 2.
.1.1 Electrical Characteristics PARAMETER Frequency Nom. SYMBOL fo Supply voltage, Nom. Vs Input Current, max. Is Overall Frequency stability (including Operating Temperature, ±5% Load Δf/fc (Ta) Change, ±5% Supply Voltage change, 10 year aging, and radiation) Voltage Control Range For Vc Frequency Adjustment Min. Control Voltage at which Vc/fo fo will occur at 25°C Frequency Pulling range, Δf/Vc Min Linearity, max. Δf/V Input impedance, min. Zin Modulation freq. MBW (-3dB) bandwidth, min.
3.2.2 Environmental Conditions Sine Vibration Random Vibration Shock Acceleration Altitude Radiation Electrostatic Discharge Sensitivity 3.3 MIL-STD-202, Method 204, TC “D” MIL-STD-202, Method 214 TC “I-K” (15 minutes per axis) MIL-STD-202, Method 213, TC “F” MIL-STD-883, Method 2001, TC “A” 50,000 feet minimum to deep space Radiation testing is not performed, but these VCXOs have been acceptable for use in environments up to 100K rads by analysis of the components used.
3.3.1 All piece parts shall be derived from lots that meet the element evaluation requirements of MIL-PRF38534, Class K, with the exception of the following exceptions: Active elements a) Visual inspection of silicon on sapphire microcircuits. Semicircular crack(s) or multiple adjacent cracks, not in the active area, starting and terminating at the edge of the die are acceptable.
3.6.2. Technical Data Package - When required by the purchase order, the following design documentation and information is deliverable 30 days prior to the start of production. The Technical Data Package shall consist of the following: a) Assembly drawing(s). b) All electrical schematics and drawings not considered proprietary. c) The assembly and screening travelers to be used on-line to manufacture the devices supplied to this specification. d) Parts and materials list. 3.
▀ PART NUMBER GENERATION 4: SINE WAVE +3dBm …..5V TEMPERATURE RANGE (°C)/ Max. Overall Stability/ Min. Frequency Pulling and Voltage Control Range N: 0.....+50°C ±25 ppm ±50 ppm Vc=0.5..4.5V E: Eng. Model 5: SINE WAVE +7dBm ….12V P: 0.....+70°C ±35 ppm M: Flight Model 6: SINE WAVE 7dBm …..15V Q: 20…+70°C ±40 ppm ±80 ppm Vc=0.5..6.0V R: 40…+85°C ±45 ppm ±90 ppm Vc=0.5..6.0V Output type and supply voltage SERIES QTV70: 24 Pin Double Dip Level ±70 ppm Vc=0.5..6.0V U: -55.
