FIXED OSCILLATORS PECL 70°C M2900, M2936 M2944, M2945 M2948
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FULL SIZE D.I.L
FIXED OSCILLATORS PECL 70°C
M2900, M2936 M2944, M2945 M2948
HALF SIZE D.I.L
H2900, H2936 H2944, H2945 H2948
Thru-Hole Gull Wing
ECLPS Logic
These ECLPS logic oscillators most advanced fixed frequency types. These fixed frequency devices 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.
ECLPS, HIGH SPEED, JITTER
Models 2900 fastest PECL oscillators available. fastest ECLPS logic ensures jitter fast transistion 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.
PECL OSCILLATORS
ECLPS Lite Logic thru
Volt Power (PECL) Complementary Output M2900 M2936*, M2944, M2945, M2948, H2900 H2936 H2944 H2945 H2948 Frequency Stability ±100 ±100
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
*Guaranteed Superior Symmetry 45/55
DENOTES DENOTES DENOTES
SQUARE .200 .215 .018 .001 .060 .300 .005 .400 .600 .005 .100 .005 .300 .150 .250 .500 .005 .008/025 .018 .300 .300 .160 .018 .001 .600 .005 .520 .005 .300 GLASS INSULATORS ctrs.
.800 .005
DENOTES
.800 .005
SQUARE .200 .270 .018 .300 +.004 .300 +.004 .200 .070
GLASS INSULATORS ctrs.
Glass Insulators
Package Package same seated height 0.190
Package
Package with Gull Wing
Package with Gull Wing
ELECTRONICS
Commerce Drive, Rochelle, NY10801 914-576-6570 Fax: 914-576-6204 http://www.mfelectronics.com email:mfsales@mfelec.com
FULL SIZE D.I.L
M2900, M2936 M2944, M2945 M2948
FIXED OSCILLATORS PECL, Thru-Hole /Gull Wing
ECLPS, HIGH SPEED, JITTER
HALF SIZE D.I.L
H2900, H2936 H2944, H2945 H2948
SPECIFICATIONS Temperature Operating Storage
70°C, case temperature +125°C
ENVIRONMENTAL SPECIFICATIONS Temperature Cycle exceed change when exposed hours maximum each temperature from 120°C, with 25°C reference Shock 1000 G's, 0.35 sine wave, shocks each plane Vibration 10-2000 .06" d.a. G's, whichever less Humidity Resistant R.H. 85°C 5.25 UNITS volts MECHANICAL SPECIFICATIONS Gross Leak Each unit checked 125°C flurocarbon 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 Printing black epoxy Resistance Solvents 202, Method
Frequency Range MIN. 4.75
Input Voltage, Input Current Output Levels, Level 25°C 70°C Level 25°C 70°C Jitter,
(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
Rise Fall Times 80%) Symmetry units, except 2936 Models M2936, H2936
AGING ppm, first year, typ. year thereafter, typ. CONNECTIONS
45/55
40/60
percent
PINS Full Half Size Size
2900 Models Output requires termination ohms ohms Electrical Ground Case Output requires termination ohms ohms +5V, Tied
48/52
45/55
percent
TERMINATIONS oscillators must terminated. required, internal terminating resistors specified value factory-supplied.
+5V,
COMPLEMENTARY OUTPUT 2900 MODELS CASE OUTPUT
CASE
COMPLEMENTARY OUTPUT
+5V, Power Supply
2900 MODELS
SCOPE COAX
Y-OUTPUT
Half size connections shown
Fig.
Note: Outputs must properly terminated
COUNTER
Half Size connections shown adapt probe receptacle Tektronix Part #103-0164-00
connect output scope Tektronix Part #131-0258-00 (receptacle)
TEST CIRCUIT 2900's
ELECTRONICS
Commerce Drive, Rochelle, NY10801 914-576-6570 Fax: 914-576-6204 http://www.mfelectronics.com email:mfsales@mfelec.com
FULL SIZE D.I.L
M2900, M2936 M2944, M2945 M2948
FIXED OSCILLATORS PECL, Thru-Hole /Gull Wing
ECLPS, HIGH SPEED, JITTER
HALF SIZE D.I.L
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 height, full size
"2948" model type
"155.52 frequency
gullwing
ELECTRONICS
Commerce Drive, Rochelle, NY10801 914-576-6570 Fax: 914-576-6204 http://www.mfelectronics.com email:mfsales@mfelec.com
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