Model 148 OCXO - Ultra Miniature, Ultra Low Power Shock Resistant Features 8MHz to 100MHz frequency range Industry’s smallest OCXO Fast warm-up (to 45s) Eco-friendly < 250mW power consumption HCMOS output Shock and vibration resistant construction RoHS Status Applications Airborne and Ground Mobile PLL Reference for Telecommunication Systems Portable (Battery Operated ) Devices Guidance Systems Instrumentation / Test and Measurement Description The Model 148 is a high stability, low power OCXO that utilizes an SC-cut quartz resonator. The SC resonator insures excellent phase noise and low aging rates. The novel design featuring the oscillator and oven control circuitry inside of the vacuum sealed TO-8 crystal enclosure provides reduced size, fast warm-up, and excellent temperature stability. In addition to improved performance characteristics, the compact design of Model 148 offers increased resilience to mechanical shock and vibration. Electrical Specifications Parameter Frequency Range Initial Calibration Frequency Stability Symbol Condition F Min Typ 8 ∆F/F ∆F/F Vs. Operating temp. C: -10°C to 60°C Vs. Supply voltage T Supply Voltage -40 Worst direction 1Hz 10Hz 100Hz 1kHz 10kHz SSB Phase Noise VCC Unit 100 MHz ±0.1 ±0.2 ppm For 10MHz oscillator For 100MHz oscillator 5 ppb See “How to Order” ppb VCC ±5% 0.5 0.05 ppb ppm After 30 days. See “How to Order” +85 C See “How to Order” 1 ppb/G ±2 Vs. Aging / Day Vs. Aging / Year Operating Temperature Range G-sensitivity Max -97 -127 -152 -162 -166 4.75 3.14 5.0 3.3 dBc/Hz 5.25 3.46 Note For 10MHz oscillator V North Americas: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com • Rev D1015 Specifications are subject to change without notice 1 Model 148 OCXO - Ultra Miniature, Ultra Low Power Shock Resistant Electrical Specifications Parameter Symbol Power Consumption P Warm-up Time τ Condition warm-up state steady state, at +25C to ∆F/F=1 E-7, @+25C, VCC=5.0V Min Typ 1.0 0.23 45 Max 1.1 0.25 60 Unit W sec 10kOhms // 15pF HCMOS Output Levels VH VCC = 5V VCC = 3.3V 3.8 2.4 TR/TF VC Control Voltage VCC = 5V VCC = 3.3V Frequency Tuning Range Reference Output VREF 0.4 V 10 ns 45 55 % 0 0 4.2 2.8 V Tuning slope positive ppm Monotonic At 10MHz output frequency Duty Cycle VCC = 5V VCC = 3.3V Ref. to frequency after 15mins. 10MHz output frequency V VL Rise / Fall time Note ±0.5 ±1.0 4.1 2.7 4.2 2.8 4.3 2.9 V Environmental and Mechanical Conditions Parameter Storage Temperature Humidity Mechanical Shock Vibration Soldering Conditions Markings Condition -60°C to +90°C Non-condensing 95% Per MIL-STD-202G, method 213B, 500G, 1ms, half sine pulse Per MIL-STD-202G, method 204D, 1.5mm DA 10 to 100Hz, 30G peak swept sine 100 to 2000Hz Hand solder only Epoxy ink or laser engraved North Americas: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com • Rev D1015 Specifications are subject to change without notice 2 Model 148 OCXO - Ultra Miniature, Ultra Low Power Shock Resistant How to Order Model 148 Package 148 - Stability Temperature Range Supply Voltage Aging W D E C Code Specification A 0°C to 50°C Dimensions (mm) 14 x 14 Code Specification R 1x10 -7 B 0°C to 70°C C -10°C to 60°C D -20°C to 70°C E -30°C to 70°C G -40°C to 85°C Code -8 T 5x10 30 3x10 U 2x10 V 1x10 W 5x10 -8 Code D E -8 -8 Specification 5V ± 5% 3.3V± 5% - Per day Frequency, MHz Per year L 0.3ppb 0.03ppm J 0.5ppb 0.05ppm C 1ppb 0.1ppm I 1.5ppb 0.15ppm K 2.5ppb 0.25ppm B 2ppb 0.2ppm F 3ppb 0.3ppm A 5ppb 0.5ppm 10 For Frequencies Above 8MHz Above 20MHz Above 50MHz Above 80MHz -9 Available Frequency Stabilities over Operating Temperature Ranges Order Code Temperature Range A Stability R T -7 30 -8 U -8 V -8 W -8 -9 1x10 5x10 3x10 2x10 1x10 5x10 0°C to 50°C C B B B 0°C to 70°C C B A C -10°C to 60°C C B B A D -20°C to 70°C C B B A A E -30°C to 70°C C B B A G -40°C to 85°C B B B A Stability Legend * = Available for all frequencies A = Available only for frequencies ≤10 MHz B = Available only for frequencies ≤30 MHz C = Available only for frequencies ≤50 MHz North Americas: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com • Rev D1015 Specifications are subject to change without notice 3 Model 148 OCXO - Ultra Miniature, Ultra Low Power Shock Resistant Package Model 148 HCMOS Pin 1 2 4 5 8 Connection VCONTROL VREF. GND Output VCC North Americas: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com • Rev D1015 Specifications are subject to change without notice 4