CFPT-37 ISSUE 2 ; 19 OCTOBER 2004 Environmental Specification Delivery Options ■ Please contact our sales office for details ■ ■ Package Outline ■ 7.0 x 5.0 x 2.0mm SMD Description ■ CFPT-37 is a fixed frequency, surface mount, temperature compensated crystal oscillator providing a high degree of frequency stability over a wide temperature range ■ ■ Storage Temperature Range -55 to 125°C Vibration: IEC 60068-2-6 Test Fc Procedure B4, 10-60Hz 1.5mm displacement, at 98.1m/s2, 30 minutes in each of three mutually perpendicular axes at 1 octave per minute Shock: IEC 60068-2-27 Test Ea, 980m/s2 acceleration for 6ms duration, 3 shocks in each direction along three mutually perpendicular axes Solderability: MIL-STD-202, Method 208, Category 3 Supply Voltage ■ 3.3V ± 0.3V Outline in mm Output Compatibility ■ HCMOS ■ Load: 15pF nom. ■ VoL: <10% Vs ■ VoH: >90% Vs ■ Duty Cycle: 45/55% ■ Rise Time: 8ns ■ Fall Time: 8ns T4 4 5.0±0.15 0.9 2.0 0.6 1 2 T1 T2 T3 1.04 3 1.4 2.0 Solder pad layout 5.08 4.20 Supply Current ■ 3mA @ 20MHz typical 5.08 0.79 Operating Temperature Range ■ -20 to 70°C Pad Connections 1.N/C 2.GND 3.Output 4.+Vs T1, T2, T3, T4 N/C 7.0±0.15 1.2 SURFACE MOUNT TCXOs Frequency Stability ■ Temperature ±0.9ppm ■ Supply Voltage Variation ±0.3ppm * ■ Load Variation ±0.2ppm ■ After Reflow ±1.0ppm ■ Calibration Tolerance @ 25°C ±1.0ppm * Supply Voltage Variation : >30.0MHz to <40.0MHz, ±0.4ppm >40.0MHz, ±0.5ppm 1.5 Ageing ■ ±1ppm / year typical in 1st year @ 25°C Standard Frequencies ■ 10, 12.8, 13.0, 14.4, 16.32,16.384, 19.44, 20.0, 26.0, 32.768, 40.0MHz Other frequencies may be available, please contact our sales office Output Waveform tf +Vs 90% (VoH-VoL) VoH Marking ■ CMAC and Batch Code ■ 37 + Frequency Code + Date Code Minimum Ordering Information Required ■ Frequency + Model Number (example 10.0MHz CFPT-37) tr 50% (VoH-VoL) 10% (VoH-VoL) VoL 0V t T Duty cycle = t x 100(%) T ■ Washing: Able to withstand aqueous washing process. ■ Packaging: Tape and reel, details available on request. Test Circuit Output +Vs 0.1µF 4 3 1 2 15pF* Do Not Connect GND * inclusive of probe and jig capacitance SURFACE MOUNT TCXOs Manufacturing Information ■ Soldering: SMD product suitable for Convection Reflow soldering. Peak temperature 260°C. Maximum time above 220°C, 60s