CRYSTAL
OSCILLATORS
10K PECL 5V
FULL SIZE D.I.L
M package
M1500,
M1544,
M2500,
M2544,
M1536,
M1545,
M2536,
M2545
Thru-Hole / Gull Wing
Commercial: 0º to 85ºC
10 MHz to 125 MHz
These models which use 10K PECL logic
are not recommended for new designs.
Suggested models are M1700 series that use
10KH PECL logic, or low jitter models shown
on M2910 data sheet that are available thru
410 MHz.
FEATURES
•
Single or dual complementary outputs
•
Start up time less than 5 ms
•
Stability options from ±100 ppm to ±25 ppm
•
Guaranteed start-up with ramping DC Supply
•
Specified for extended temperature to 85°C, to allow for additional heat rise in confined space
•
Terminating resistor may be internal – consult factory
Description
MF Electronics’ high speed clock oscillators
for digital and communications applica-
tions are based on 5V PECL logic and
are available in full size (M) and half size
(H) thru-hole packages. Designed in 10K
PECL logic, the oscillators are available
from 10 MHz to 125 MHz output.
PECL OSCILLATORS
10K Logic
10 MHz thru 125 MHz
+5 Volt Power on Pin 14
Single
Output
M1500
M1536*
M1544
M1545
Complementary
Output
M2500
M2536*
M2544
M2545
Frequency
Stability
±100 ppm
±100 ppm
±25 ppm
±50 ppm
*Guaranteed Superior Symmetry 45/55
DOT
DENOTES
PIN 1
.800 – .005
DOT
DENOTES
PIN 1
.800 – .005
.200 MAX
.215 MAX
.018 – .001
.060 TYP
.300 – .005
.400
.600 – .005
Pin 1
.100 – .005
Pin 7
.300 –. 005
.500 – .005
.150
Pin 14
Pin 8
.250 MAX
Pin 14
.600 – .005
Pin 1
.008/025 .15 MIN
.018 – .001
.200 MAX
.270 MAX
Pin 7
.520 – .005
.300 –. 005
Pin 8
GLASS INSULATORS (4)
on .48 x .18 ctrs.
GLASS INSULATORS (4)
“M” Package
“M” Package
with Gull Wing
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:sales@mfelectronics.com
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CRYSTAL OSCILLATORS
10K PECL 5V
Thru-Hole /Gull Wing
Commercial: 0º to 85ºC
10 MHz to 125 MHz
FULL SIZE D.I.L
M package
M1500,
M1544,
M2500,
M2544,
M1536,
M1545,
M2536,
M2545
ELECTRICAL SPECIFICATIONS
Frequency Range
10 MHz to 125 MHz
Frequency Stability
Includes calibration at 25°C, operating temperature,
change of input voltage, change of load, shock and
vibration.
Input Voltage
Input Current
Output Levels
“0” Level
25°C
70°C
“1” Level
25°C
70°C
Rise and Fall Times
(20 to 80%)
Symmetry
All units, except ’36 Models
M1536, M2536
Aging
First year
After first year
MIN
4.75
TYP
5.0
45
MAX
5.25
60
UNITS
volts
mA
ENVIRONMENTAL SPECIFICATIONS
Temperature
Operating
Storage
0º to 85°C, case temperature
-55º to +125°C
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
(Vc–1.85)
(Vc–1.825)
(Vc–0.96)
(Vc–0.89)
2.0
45/55
48/52
3-5
1
(Vc–1.65)
(Vc–1.65)
(Vc–0.81
(Vc–0.7)
3.0
40/60
45/55
volts
volts
volts
volts
ns
percent
percent
ppm
ppm/yr
Leak
– MIL STD 883, Method 1014, condition A1
Pins
– Kovar, nickel plated with gold flash
Bend Test
– Will withstand two bends of 90° from reference
Header
– Steel, nickel plated with gold flash
Case
– Stainless steel, type 304
Marking
– Epoxy ink or laser engraved
Resistance to Solvents
– MIL STD 202, Method 215
COMPLEMENTARY OUTPUT
FOR M2500
+5V
Power
Supply
GND
MA
IMF
CONNECTIONS
50Ω
+3V
350 MHz
SCOPE
COAX
Y-OUTPUT
COUNTER
PINS
1.
7.
8.
14.
CASE
Single Output: M1500 Models
Not used
1
14
M1500’s
M2500’s
7
8
Dual Output: M2500 Models
Output requires termination of 270
ohms to Pin 7 or 50 ohms to +3V
Electrical Ground
Output requires termination of 270 ohms to Pin 7 or 50 ohms to +3V
+5 volts
Floating
CASE FLOATS
TEST CIRCUIT FOR M1500 s
M2500 s HAVE ADDITIONAL OUTPUT ON PIN 1.
+5V
COMPLEMENTARY
OUTPUT
1
ON M2500
14
M1500
&
M2500
8
CASE
FLOATS
OUTPUT
HOW TO ORDER
For Part Number, put package type before model number,
and add frequency in MHz, for example:
7
M 1 5 0 0-6 6 . 6 6 6 M
Note:
Output requires termination of 270
ohms to Pin 7 or 50 ohms to +3 volts
M is
full size DIL
1500
is model
type
66.666 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
SS#
M1500
Rev.
A
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:sales@mfelectronics.com
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