VCXO 1955 Typical Applications Sonet/SDH ATM Equipment Switching Equipment Multiplexing Features Surface Mount Package Low Jitter Complementary ECL or PCL Output Frequency Range 10 MHz - 200 MHz Standard Frequency 155.520000 MHz Frequency Stabilities Aging < 15.0 ppm Frequency tuning Voltage Control: Center Vdc Slope Over 20 years OUTPUT CODE A OUTPUT CODE B OUTPUT CODE C ECL -0.5V to -4.5V -2.5V 0.5V Positive +5V PECL 0.5V to 4.5V -2.5V 0.5V Positive +3.3V PECL 0.5V to 3V 1.75V 0.5V Positive >50 k Input impedance RF output Signal Complementary ECL or PCL Supply Voltage Supply voltage options (Vs) Supply Current Temperature Stability PPM Supply Current -4.5 Vdc, -5.2 Vdc, +5.0 Vdc, +3.3 Vdc 70 mA max STABILITY CODE A STABILITY CODE B 20.0 @ 0C to +70C 40.0 @ -40C to +85C 70 mA max Additional Parameters Phase Noise Jitter Processing Packaging Corning Frequency Control * Worldwide Data Book 2001 < - 55dBc 10Hz Note 1 < - 85dBc 100Hz < -118dBc 1kHz < -142dBc 10kHz < -145dBc 100kHz At 155.52 MHz <1 pS RMS over a bandwidth of 100 Hz to 2 MHz Tech_Note_1 Tech_Note_2 v1.0.2000-11-11 Corning Frequency Control Inc. * 100 Watts Street * Mt. Holly Springs, PA 17065 * Tel 1-717-486-3411 * Fax 1-717-486-5920 * www.corningfrequency.com Tele Quarz GmbH & Co. KG * Landstrasse * D-74924 Neckarbischofsheim, Germany * Tel +49-7268-801-0 * Fax +49-07268-801-281 * www.telequarz.de 1/1 VCXO 1955 Enclosures SMT "S" Package Pin Connections 1 Pin 7 Pin 8 Pin 9 Pin Pin 14 Notes 1 2 Gullwing "G" Package ECL Voltage Control Vee RF Output Complementary RF Output Ground Through-hole "T" Package PECL Voltage Control Ground RF Output Complementary RF Output Vcc Typical values @ 155 MHz Unless otherwise stated all values are valid after warm-up time and refer to typical conditions for supply voltage, frequency control voltage, load, temperature (25C) No frequency multiplier used within this VCXO Corning Frequency Control * Worldwide Data Book 2001 v1.0.2000-11-11 Corning Frequency Control Inc. * 100 Watts Street * Mt. Holly Springs, PA 17065 * Tel 1-717-486-3411 * Fax 1-717-486-5920 * www.corningfrequency.com Tele Quarz GmbH & Co. KG * Landstrasse * D-74924 Neckarbischofsheim, Germany * Tel +49-7268-801-0 * Fax +49-07268-801-281 * www.telequarz.de 2/2