FULL SIZE D.I.L. M package CRYSTAL OSCILLATORS ECLPS PECL 5V M2910, M2954, M2955, M2958 Thru-Hole / Gull Wing Description Commercial: 0º to 70ºC 10 MHz to 410 MHz Generates complementary 5V ECLPS PECL output waveform optimized for low jitter for telecom applications. FEATURES • Super low jitter output – 2 ps RMS typical • Frequency range is 10-410 MHz • Four stability choices to 20 ppm • Start up time less than 5 ms • Guaranteed start-up with ramping DC Supply TYPICAL APPLICATIONS • High-speed data communications These 5 volt thru hole ECLPS PECL models feature jitter of 20 ps, peak-topeak from positive edge to positive edge. This is accomplished by using AT-cut crystals operating in their fundamental or overtone modes. No frequency doubling, tripling or phase-lock-loop multipliers are used, ensuring the very lowest jitter supported by the ECLPS PECL logic. Two outputs support differential drive at 50 ohms each, assuring signal integrity even when transmitted over long paths. They are compatible, and produce the same waveshapes as our M2911 VCXOs. They are available in the full size (M) package with or without gull wing. Four stability options are available from ±100 ppm thru ±20 ppm. ECLPS PECL 5V DOT DENOTES PIN 1 DOT DENOTES PIN 1 .800 – .005 .800 – .005 .200 MAX .215 MAX .018 – .001 .060 TYP .300 – .005 .008/025 .15 MIN .200 MAX .270 MAX Model Frequency Stability M2910 ±100 ppm M2954 ±25 ppm M2955 ±50 ppm M2958 ±20 ppm .018 – .001 .400 .600 – .005 Pin 1 .600 – .005 .100 – .005 Pin 7 Pin 1 Pin 7 .300 –. 005 .520 – .005 .500 – .005 .300 –. 005 .150 Pin 14 Pin 8 .250 MAX GLASS INSULATORS (4) Fig. 1 “M-1” Package Pin 14 Pin 8 GLASS INSULATORS (4) on .48 x .18 ctrs. Fig. 2 “M-1” Package with Gull Wing CONNECTIONS Pin 1. ECLPS PECL Output Pin 7. Ground, Case Pin 8. ECLPS PECL Output Complement Pin 14. VDD, 5 V 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 2 CRYSTAL OSCILLATORS ECLPS PECL 5V Thru-Hole /Gull Wing FULL SIZE D.I.L. M package M2910, M2954, M2955, M2958 Commercial: 0º TO 70ºC 10 MHz to 410 MHz ELECTRICAL SPECIFICATIONS Frequency Range 10 MHz to 410 MHz Frequency Stability Includes calibration at 25°C, operating temperature, change of input voltage, change of load, shock and vibration. MIN 4.75 Input Voltage, VDD TYP 5.0 Input Current, Maximum MAX 5.25 UNITS volts 70 ma “0” Level (VDD-1.63) volts (VDD-0.98) Rise and Fall Times, with Output returned to (VDD-2)V thru 50 Ω Pins – Kovar, nickel plated with 60/40 solder coat Bend Test – Will withstand two bends of 90° from reference Header – Steel, with nickel plate Case – Stainless steel, type 304 Marking – Epoxy ink or laser engraved Resistance to Solvents – MIL STD 202, Method 215 volts 225 350 ps 2 14 3.5 20 ps ps 45/55 percent (from 20 to 80%) Jitter, Positive Edge to Pos Edge, RMS Peak to peak Symmetry at (VDD-1.3)V Aging First year After first year 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 MECHANICAL SPECIFICATIONS Leak – MIL STD 883, Method 1014, condition A1 Output Levels, with Output returned to (VDD-2)V thru 50 Ω “1” Level ENVIRONMENTAL SPECIFICATIONS Temperature Operating 0° to 70°C Storage -55° to +125°C 3 1 Termination, Load Both outputs should be terminated with 50 ohms to (VDD-2) volts ppm ppm/yr 50 ohm load +5V MA Power Supply 1 IMF 7 GND M2910 M2954 M2955 M2958 14 COAX or PCB with 50 ohm Characteristic Impedance DIFFERENTIAL OUTPUT (Vdd-2)V 50 ohm load 8 CASE IS ON GROUND TEST CIRCUIT FOR M2910, M2954, M2955, M2958 Fig. 4 Test Circuit HOW TO ORDER For Part Number, put package type before model number, and add frequency in MHz, for example: M 2958 - 250M Fig. 3 Jitter for M2954-155.52 M Oscillogram showing jitter from leading edge taken with Tek 11801B with SD22 Sampling Head. Peak-to-peak jitter is 16 ps; RMS jitter is 2.551 ps. SS# Rev. M2910 A “M” is full size DIL ELECTRONICS “2958” is model type “250 M” frequency in MHz Leave blank for straight leads Add “G” for gullwing 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] 2 of 2