FULL SIZE D.I.L package HALF SIZE D.I.L package M2900, M2936
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CRYSTAL OSCILLATORS PECL
FULL SIZE D.I.L package
HALF SIZE D.I.L package
M2900, M2936 M2944, M2945 M2948
H2900, H2936 H2944, H2945 H2948
Thru-Hole Gull Wing
ECLPS, HIGH SPEED, JITTER Commercial:
Models 2900 fastest PECL oscillators available. fastest ECLPS logic ensures jitter fast transition match VCXO Models M2901, M2902 M2903 speed waveform. 2900 models provide positive (PECL) have complementary outputs. Frequency tolerances from ±100 include effects voltage, load aging.
FEATURES full size half size Complementary outputs Typical jitter Start time less than Stability options from .01% (100 ppm) .002% ppm) Guaranteed start-up with ramping Supply Specified extended temperature 85°C, allow additional heat rise confined space Terminating resistor internal consult factory
Description
These fixed frequency oscillators same output logic ECLPS VCXO models 2901 thru 2903, exhibit identical waveform characteristics. high speed ECLPS clock oscillators available full size half size thru-hole packages. models have dual complementary outputs available frequencies through MHz. Frequency stability extends from ±100 ppm. feature typical rise/ fall times provide superior jitter transition speeds. Their output impedance dual complementary outputs preserve waveform symmetry when sending timing waveforms over appreciable distance. Output symmetry 45/55 available. Super jitter characteristics extended frequencies available models shown M2910 volts) M2980 (3.3 volts) specification sheets.
PECL OSCILLATORS
Volt Power (PECL) Complementary Output M2900 M2936*, M2944, M2945, M2948, H2900 H2936 H2944 H2945 H2948 Frequency Stability ±100 ±100
*Guaranteed Superior Symmetry 45/55
DENOTES DENOTES DENOTES
.800 .005 SQUARE .200 .215 .018 .001 .060 .300 .005 .400 .600 .005 .100 .005 .300 .500 .005 .150 .250 .008/025 .018 .300 .300 .160 .018 .001 .600 .005 .520 .005 .300 GLASS INSULATORS ctrs.
DENOTES
.800 .005
SQUARE .200 .270 .018 .300 +.004 .300 +.004 .200 .070
GLASS INSULATORS
Glass Insulators
Package
Package
Package with Gull Wing
Package with Gull Wing
ELECTRONICS
Commerce Rochelle 10801
International Sales: +1.914-712-2200 Sales: +1.800.331.1236 Fax: 914.712.2290 www.mfelectronics.com email:sales@mfelectronics.com
CRYSTAL OSCILLATORS PECL Thru-Hole /Gull Wing
Commercial: ECLPS, HIGH SPEED, JITTER
FULL SIZE D.I.L package
HALF SIZE D.I.L package
M2900, M2936 M2944, M2945 M2948
H2900, H2936 H2944, H2945 H2948
ELECTRICAL SPECIFICATIONS Frequency Range Frequency Stability Includes calibration 25°C, operating temperature, change input voltage, change load, shock vibration. Input Voltage, Input Current Output Levels, Level 25°C 70°C Level 25°C 70°C Jitter 4.75 5.25 UNITS volts
ENVIRONMENTAL SPECIFICATIONS Temperature Operating Storage 70°C, case temperature +125°C
Temperature Cycle exceed change when exposed hours maximum each temperature from 120°C, with 25°C reference Shock 1000 0.35 sine wave, shocks each plane Vibration 10-2000 .06" d.a. whichever less Humidity Resistant R.H. 85°C
(VDD-1.85) (VDD-1.825) (VDD-0.96) (VDD-0.89)
(VDD-1.65) (VDD-1.65) (VDD-0.81) (VDD-0.7)
(VDD-1.95) (VDD-1.95) (VDD-0.98) (VDD-0.92)
(VDD-1.63) volts (VDD-1.60) volts (VDD-0.81) volts (VDD-0.735) volts picosec, peak-to-peak percent percent ppm/yr
MECHANICAL SPECIFICATIONS Gross Leak Each unit checked 125°C fluorocarbon Fine Leak Mass spectrometer leak rate less than 10-8 atmos, cc/sec helium Pins Kovar, nickel plated with 60/40 solder coat, microinch gold over nickel Bend Test Will withstand bends from reference Header Steel, with nickel plate, microinch gold over nickel Case Stainless steel, type Marking Permanent black epoxy laser marked Resistance Solvents 202, Method
+5V, COMPLEMENTARY OUTPUT 2900 MODELS CASE OUTPUT
Rise Fall Times 80%) Symmetry units, except 2936 Models M2936, H2936 Aging First year After first year
45/55 48/52
40/60 45/55
TERMINATIONS oscillators must terminated. required, internal terminating resistors specified value factory-supplied.
Half size connections shown
Fig. CONNECTIONS
PINS Full Half Size Size 2900 Models COMPLEMENTARY OUTPUT Output requires termination ohms ohms (VDD-2)V Electrical Ground Case Output requires termination ohms ohms (VDD-2)V +5V, Tied
+5V, Power Supply
Note: Outputs must properly terminated
2900 MODELS
SCOPE COAX
Y-OUTPUT
COUNTER
Half Size connections shown adapt probe receptacle Tektronix Part #103-0164-00
CASE
connect output scope Tektronix Part #131-0258-00 (receptacle)
TEST CIRCUIT 2900's
ELECTRONICS
Commerce Rochelle 10801
International Sales: +1.914-712-2200 Sales: +1.800.331.1236 Fax: 914.712.2290 www.mfelectronics.com email:sales@mfelectronics.com
CRYSTAL OSCILLATORS PECL Thru-Hole /Gull Wing
Commercial: ECLPS, HIGH SPEED, JITTER
FULL SIZE D.I.L package
HALF SIZE D.I.L package
M2900, M2936 M2944, M2945 M2948
H2900, H2936 H2944, H2945 H2948
Figure 155.52 PECL oscillator, showing steep rise fall times excellent duty cycle. Levels have difference between "0". Overshoots caused inductance socket.
Figure 155.52 oscillator with expansion transition volts. Jitter shown histogram, slicing waveform volts. Distribution unimodal, with peak-peak jitter
ORDER
Part Number, package type before model number, frequency MHz, example:
full size half size
"2948" model type
"155.52 frequency
Leave blank straight leads gullwing
M2900
Rev.
ELECTRONICS
Commerce Rochelle 10801
Unless customer-specific terms conditions signed officer Electronics, sale this Electronics products subject terms conditions forth www.mfelectronics.com/terms
International Sales: +1.914-712-2200 Sales: +1.800.331.1236 Fax: 914.712.2290 www.mfelectronics.com email:sales@mfelectronics.com
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