VOLTAGE CONTROLLED CRYSTAL OSCILLATORS ECLPS 5V PECL with Extremely Low Jitter Complementary Output Thru-Hole These VCXOs provide complementary PECL outputs thru 175 MHz with extremely fast rise and fall times. Each oscillator is computer tuned and computer tested to guarantee stability and frequency pull at 0º, 25º and 70ºC. All oscillators will capture the rated pull at all operating temperatures. FEATURES • Jitter less than 1 ps RMS from 12 KHz to 20 MHz • Super low jitter of 20 ps peak to peak maximum limits loss of data packets in digital data recovery • Will drive standard interface chips in complementary PECL. • Duty Cycle is typically 48/52 • Three frequency deviation choices • Output is PECL with typical rise and fall times of 225 ps • Exceptional linearity with Deviation Sensitivity Ratio not exceeding 2.0 • Package is choice of double DIL, standard DIL with 7 pins (M1) TYPICAL APPLICATIONS • Used in Sonet ST33 interface for generation of the transmitter data clock SPECIAL APPLICATION NOTES • All outputs must be loaded with 270 ohms to ground, or 50 ohms to +3V • Outputs will drive all PECL families when they are operated in PECL configurations 0.98 max (24.89) 0.80 max (20.32) DOT DENOTES PIN 1 Square corner indicates Pin 1 0.275 max (6.99) .20 MAX .20 MIN. .100 typ 0.20/0.30 (.025) (.50/.76) 0.700 ±.005 0.20.24 (17.78 ±.13) (0.51/.61 Centrally Located Pin 1 .016/.019 Dia (.41/.48), 16 pins .018 – .001 100 TYP (NON ACCUMULATIVE) Pin 1 2 M2911 thru M2913 DOUBLE WIDE D.I.L. W package W2911 thru W2913 W2971 thru W2973 Description Commercial: 0º to 70ºC 15 MHz to 175 MHz 5 14 FULL SIZE D.I.L. M package 7 9 8 .300 – .005 44 MAX .300 – .005 .500 – .005 8 0.600 ±.005 Centrally Located 150 16 9 Glass Insulators (3) .800 – .005 “M-1” Package “W1” Package These ECLPS VCXOs feature super-low jitter of 20 ps peak-to-peak — within the bandwidth of 12 KHz to 20 MHz the jitter will not exceed 1 ps RMS. They are based on the same logic as our M2910s fixed frequency oscillators, and therefore exhibit identical waveform characteristics. These thru-hole VCXOs are designed for compatibility with digital and communications systems based on the ECLPS family of high speed PECL logic. Users have a choice of the three most widely used combinations of pull, control voltage and center frequency deviation. The oscillators are available at frequencies from 15 to 175 MHz. Standard frequency stability is ±20 ppm. All models have dual complementary outputs. All feature 250 ps typical rise/fall times and provide superior jitter. Their low output impedance and dual complementary outputs preserve waveform symmetry when sending the timing waveforms over appreciable distance. Output symmetry of 45/55 is standard. Designed originally for advanced SONET applications, their combination of advanced characteristics provides special appeal to designers of highly evolved phase-lockedloop circuits. They provide tight control of the voltage-to-frequency (∆F/∆V) transfer function and feature jitter specifications of less than 20 pico-seconds peak-to-peak. Typical RMS jitter is 2.048 ps RMS. These VCXOs are hermetically sealed in full size (H) or wide (W) DIL packages. Models W2911 through W2913 accept control voltage input on pin 1, while Models W2971 through W2973 accept control voltage on pin 6. All models are tested and guaranteed over full 0°C to 70°C temperature. ELECTRONICS 10 Commerce Dr • New Rochelle NY 10801 International Sales: +1.914-712-2200 • USA Sales: +1.800.331.1236 • Fax: 914.712.2290 • www.mfelectronics.com • email:[email protected] 1 of 3 VOLTAGE CONTROLLED CRYSTAL OSCILLATORS ECLPS 5V PECL with Extremely Low Jitter Complementary Output Thru-Hole FULL SIZE D.I.L. M package M2911 thru M2913 DOUBLE WIDE D.I.L. W package W2911 thru W2913 W2971 thru W2973 Commercial: 0º TO 70ºC 15 MHz to 175 MHz ENVIRONMENTAL SPECIFICATIONS Temperature Operating 0º to 70°C Storage -55º to +125°C ONE DIL WIDE, M1 Package Model Control Voltage for Nominal (Center) Freq. Frequency Stability @ Center M2911 M2912 2.5 volts ±20 ppm M2913 Frequency Deviation 0.5 volts 4.5 volts -50 to -100 ppm 50 to 100 ppm -75 to -150 ppm 75 to 150 ppm -100 to -200 ppm 100 to 200 ppm Temperature Cycle – Not to exceed ±5 ppm change when exposed to 2 hours maximum at each temperature from 0 to 120°C, with 25°C reference Shock – 1000 Gs, 0.35 ms, 1/2 sine wave, 3 shocks in each plane Vibration – 10-2000 Hz of .06" d.a. or 20 Gs, whichever is less Humidity – Resistant to 85° R.H. at 85°C DOUBLE DIL WIDE, W1 Package Voltage Control on Pin 1 Voltage Control Control Voltage on for Nominal Pin 6 (Center) Freq. W2911 W2971 W2912 W2972 W2913 W2973 2.5 volts Frequency Stability @ Center MECHANICAL SPECIFICATIONS Shock – 1000 Gs, 0.35 ms. 1/2 sine wave, 3 shocks in each plane Vibration – 10-2000 Hz of .06” d.a. or 20 Gs, whichever is less Humidity – Resistant to 85% RH at 85°C Frequency Deviation ±20 ppm 0.5 volts 4.5 volts -50 to -100 ppm 50 to 100 ppm -75 to -150 ppm 75 to 150 ppm -100 to -200 ppm 100 to 200 ppm Leak – MIL STD 883, Method 1014, condition A1 ELECTRICAL SPECIFICATIONS Frequency Range 15 MHz to 175 MHz Frequency Stability Includes calibration at 25°C, operating temperature, change of input voltage, change of load, shock and vibration. MIN TYP MAX UNITS 4.5 5.0 5.5 volts Input Voltage, VDD Input Current, including load current of both ouputs at 4.5V 60 ma at 5.0V 68 ma at 5.5V 76 ma Output Levels (PECL), at 5.0 VDD “0” Level, 3.2 3.37 volts “1” Level, 4.02 4.1 volts Symmetry differential 48/52 45/55 Input Impedance 50 1000 Kohms Control Voltage Bandwidth 10 20 KHz Control Voltage, Vc 0 0.5 to 4.5 15 Volts, DC Jitter, with Tektronix 11801B & SD22 Head in jitter color mode 15 20 ps, Pk-Pk with Agilent Phase Noise System E5500, from 12 KHz to 20 MHz 1 ps RMS Linearity best straight line, percent of total 5 10 % deviation sensitivity ratio 2 Rise Time (20 to 80%) 100 225 350 ps Fall Time (20 to 80%) 100 225 350 ps Pins – Kovar, with 7 microinch gold over nickel Bend Test – Will withstand two bends of 90° from reference Header – Steel with gold over nickel Case – Stainless steel, type 304 Marking – Resistant to 85% RH at 85°C Resistance to Solvents – MIL STD 202, Method 215 CONNECTIONS All single DIL models W2911W2913 W2971W2973 Pin 1 2 5 7 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Used For Control Voltage Input, Vc Not Used Not Used Ground, VSS Control Voltage Input Not Used Not Used Not Used Not Used Not Used Not Used Ground, VSS Not Used Not Used Not Used Not Used Not Used Control Voltage Input, Vc Not Used Ground, VSS Pin 8 9 14 Used For Output 1 Output 2 (Complement) +5V, VDD 9 10 11 12 13 14 15 16 9 10 11 12 13 14 15 16 Output 1 Output 2 Not used Not used Not used Not used Not used +5V, VDD Output 1 Output 2 Not used Not used Not used Not used Not used +5V, VDD ELECTRONICS 10 Commerce Dr • New Rochelle NY 10801 International Sales: +1.914-712-2200 • USA Sales: +1.800.331.1236 • Fax: 914.712.2290 • www.mfelectronics.com • email:[email protected] 2 of 3 VOLTAGE CONTROLLED CRYSTAL OSCILLATORS ECLPS 5V PECL with Extremely Low Jitter Complementary Output Thru-Hole FULL SIZE D.I.L. M package M2911 thru M2913 DOUBLE WIDE D.I.L. W package W2911 thru W2913 W2971 thru W2973 Commercial: 0º TO 70ºC 15 MHz to 175 MHz Waveforms taken on TEK 11801B with SD-22 Head Fig. 1: 155.52 MHz PECL oscillator, showing steep rise and fall times and excellent duty cycle. Levels have 900 mv difference between “1” and “0”. Fig. 2: M2912-77.76 MHz oscillator with expansion of transition at 3.7 volts. Jitter is shown by the histogram of the distribution of the waveform at 3.7 volts. The distribution is unimodal, with peak-to-peak jitter of 16 ps peak-to-peak, and 2.27 ps RMS. HOW TO ORDER For Part Number, put package type before model number, and add frequency in MHz, for example: M 2 9 1 2- 7 7 . 7 6 M “M” is full size DIL “W” is double wide DIL SS# Rev. M2911 A “2912” is model type “77.76 M” frequency in MHz ELECTRONICS Unless customer-specific terms and conditions are signed by an officer of MF Electronics, the sale of this and all MF Electronics products are subject to terms and conditions set forth at www.mfelectronics.com/terms 10 Commerce Dr • New Rochelle NY 10801 International Sales: +1.914-712-2200 • USA Sales: +1.800.331.1236 • Fax: 914.712.2290 • www.mfelectronics.com • email:[email protected] 3 of 3