FREQUENCY PRODUCTS CRYSTALS Model 531 Hybrid TCVCXO CTS Reeves CLOCKS Features: * Frequency Range 1.0 to 50.0 MHz * Stabilities as low as 5 x 10-7 * Low Profile (.350 high) * Internal SMT Construction * HCMOS/TTL Compatible * Electrical Frequency Adjust * 16 Pin DIL Hermetic Sealed Package VCXOs The CTS Reeves Model 531 is a high stability hybrid TCXO housed in a 16 pin DIL package that is only .350 inches high. There are a variety of temperature and stability options to choose from. Useful as a reference oscillator in digital synthesizers. The electrical frequency adjust allows for easy tuning and calibration. TCXOs Electrical Specifications: Parameter 400 REIMANN AVE. * SANDWICH, IL 60548 Phone: 815-786-8411 * Fax: 815-786-3600 * E-Mail: www.ctsreeves.com OCXOs Supply Current (mA) Supply Voltage (Vdd) Output Type Symmetry Logic "0" Level Logic "I" Level Rise/Fall Time Aging Stability Frequency Adjust Adjust Voltage (Pin 6) Frequency Range (MHz) 1-20 MHz 20-50 MHz 25 Max. 50 Max. 5V 5% HCMOS/TTL 50% 10% HCMOS/TTL, 50% 5% HCMOS TTL (.5 Vdc), HCMOS (10% Vdd) TTL (Vdd - .5), HCMOS (90% Vdd) 5.0 nS Max (5 TTL), 10 nS Max. (30 pF HCMOS) 1.0 ppm/year Max. See Chart 5 ppm Min. 0.5 to 4.5V 83 Model 531 Hybrid TCVCXO CRYSTALS CTS Reeves FREQUENCY PRODUCTS Outline Drawings: Test Circuit: 0.970 (24.64) 1 6 8 0.250 (6.35) MIN Grd * * * * * * * * 10K * * * * * * * * CLOCKS 16 9 + Vdd 30 pF PIN 6 8 9 16 0.023 (0.58) TYP 0.100 (2.54) Pin Connections VCXOs 0.350 (8.89) MAX 0.018 (0.46) 1 FUNCTION CONTROL VOLTAGE GND. OUTPUT +Vdd 5V 8 * * * * * * * * 0.795 (20.19) 0.600 (15.24) All dimensions in inches (mm). * * * * * * * * 16 9 Mechanical Specifications: Solderability: 95% solder coverage, using RMA flux 63 Sn / 37 Pb solder at +245C 5C Temperature: Operating: See chart Storage: -55 to 85C Vibration: 10 G's rms, 20 to 2000 Hz Mechanical Shock: 50 G's 5ms pulse (3 shock/plane) TCXOs Case: Metal, hermetically sealed Leads: Nickel plated with solder coating Seal: Resistance weld Leak Test: Leak rate less than 5x10-8 atmosphere-cc/sec of helium Ordering Information: Model Type 531 ____ ___ ___ ___ ___ ___ Temperature Stability Frequency in MHz OCXOs Temperature - Stability Options Temp. Range T S A 0 to 50 B 0 to 70 C -20 to 70 D -30 to 75 E -40 to 85 84 A 0.5 X B 1.0 X X X C 2.0 X X X X X D 2.5 X X X X X E 5.0 X X X X X Temperatures in C. Stability in ppm 400 REIMANN AVE. * SANDWICH, IL 60548 Phone: 815-786-8411 * Fax: 815-786-3600 * E-Mail: www.ctsreeves.com