FREQUENCY PRODUCTS Features: * High Stability * Low Phase Noise * Low Dynamic Acceleration Sensitivity * Oven Monitor CLOCKS Designed as a replacement for the Hewlett Packard 10811E, the Model 1811 features excellent long and short term stability. The product has a sinewave output with very low phase noise content. Attention was given to SC crystal mounting design and internal mechanical design to enhance phase noise performance under vibration. The EFC (electronic frequency control) allows for fine frequency adjustment or PLL applications. VCXOs Electrical Specifications: Available Frequencies Parameter Input Voltage: 10.0 MHz +12.0 Vdc 1 Vdc 25 Vdc 5 Vdc Oscillator Oven Supply Current - Warm-up Steady State @ -40C into 50 Ohms into 1000 Ohms 10 Watts max. 2 Watts Typical Sinewave, 0.55 Vrms 0.05V 1 Vrms 0.2V Harmonics -25 dBc 1 x 10 in 15 minutes -8 Warm-up (25C) Referenced to the frequency @ 24 hrs. Phase Noise (dBc/Hz) (1 Hz Bandwidth) Frequency vs Power Supply (5%) Offset 1 Hz 10 Hz 100 Hz 1 kHz 10 kHz Standard -90 -120 -140 -155 -155 Low Noise -100 -130 -150 -163 -165 <2 x 10-10/percent OCXOs Frequency Adjustment: Mechanical Electrical (EFC) Sufficient for 10 years >1 x 10-7 for -5 Vdc to +5 Vdc <4 x 10-9 Tip Over (2G) Oven Monitor TCXOs Output Normal Operating Warm-up or Fault CRYSTALS Model 1811 High Stability OCXO CTS Reeves = approx. 1 Vdc = Oven Voltage 400 REIMANN AVE. * SANDWICH, IL 60548 Phone: 815-786-8411 * Fax: 815-786-3600 * E-Mail: www.ctsreeves.com 113 Model 1811 High Stability OCXO FREQUENCY PRODUCTS CLOCKS CRYSTALS CTS Reeves Mechanical Specifications: Solderability: 95% solder coverage, using RMA flux 63 SN/37 Pb at +245C 5C VCXOs Case: Metal, CRS Nickel Plated Leads: Kovar, solder coated Temperature: Operating: See chart Storage: -55 to +85C Seal: Non-hermetic Vibration: 0.4 inches peak to peak, 5 to 55 Hz TCXOs Connectors: SMB for output and EFC Mechanical Shock: 30 G's 11ms Ordering Information: Model Type 1811___ ___ ___ ___ ___ ___ ___ ___ Temp. Range OCXOs Temp Stability (see note) Temp Range Code 0 to +50C A 0 to +71C B -30 to +71C C Stability 4.5 x 10-9 A X X 1 x 10-8 B X X X Aging Phase Noise 1st Year Aging Per Day Aging Code 1 x 10-7 5 x 10-10 A -7 2 x 10 1 x 10-9 B Freq. in MHz Phase Noise Code Standard A Low Noise B Note: Not all Options are Available at all Frequencies. Consult Factory for Details. 114 400 REIMANN AVE. * SANDWICH, IL 60548 Phone: 815-786-8411 * Fax: 815-786-3600 * E-Mail: www.ctsreeves.com