CRYSTAL
OSCILLATORS
10KH PECL 5V
FULL SIZE D.I.L
M package
HALF SIZE D.I.L
H package
M1700,
M1744,
M1748,
M1936,
M1945,
M2700,
M2744,
M2748
M1736,
M1745,
M1900,
M1944,
M1948,
M2736,
M2745,
H1700,
H1744,
H1748,
H1936,
H1945,
H2700,
H2744,
H2748
H1736,
H1745,
H1900,
H1944,
H1948,
H2736,
H2745,
Thru-Hole / Gull Wing
Commercial: 0º to 70ºC
10 MHZ to 210 MHZ
The MF PECL oscillators are available in a variety of common config-
urations. Models are full size or half size, in 10 KH logic, with and
without complementary outputs. Frequency tolerances from 100 ppm
to 20 ppm include all effects of voltage, load and aging.
FEATURES
•
DIL – full size or half size
•
Single or dual complementary outputs
•
H1900 and M1900 have Enable/Disable, reducing noise of unwanted frequency
•
Start up time less than 5 ms
•
Stability options from .01% (100 ppm) to .002% (20 ppm)
•
Guaranteed start-up with ramping DC Supply
•
Terminating resistor may be internal – consult factory
Description
MF Electronics’ high speed clock
oscillators for digital and communications
applications are based on 5V PECL logic
and are available in full size (M) and half
size (H) thru-hole packages. Designs in
10KH logic develop 10 MHz to 210 MHz
output, and are available with 45/55
symmetry. They can be optionally provid-
ed with dual complementary output.
Frequency stability extends from the
high end at ±20 ppm to ±100 ppm.
For superior performance, see our
model 2900s using ECLPS logic.
PECL OSCILLATORS
Single
Output
1700
1736*
1744
1745
1748
Complementary
Output
2700
2736*
2744
2745
2748
Enable/Disable
Output
1900
1936*
1944
1945
1948
Frequency
Stability
±100 ppm
±100 ppm
±25 ppm
±50 ppm
±20 ppm
* Guaranteed Superior Symmetry 45/55
DOT
DENOTES
PIN 1
DOT
DENOTES
PIN 1
DOT
DENOTES
PIN 1
.800 – .005
.52 MAX
SQUARE
.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
8
5
.008/025 .15 MIN
.018
.300
Pin 1
1
4
.300
Pin 14
.2 MAX
.160
.2
MAX
.018 – .001
.600 – .005
Pin 7
.520 – .005
.300 –. 005
Pin 8
GLASS INSULATORS (4)
on .48 x .18 ctrs.
1
8
DOT
DENOTES
PIN 1
.800 – .005
.52 MAX
SQUARE
.200 MAX
.270 MAX
.018
.300
+.004
4
5
.300
+.004
.200 MAX
.070
GLASS INSULATORS (4)
Glass Insulators (4)
“M” Package
“H” Package
“M” Package
with Gull Wing
“H” 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
1 of 3
CRYSTAL OSCILLATORS
10KH PECL 5V
Thru-Hole /Gull Wing
Commercial: 0º to 70º
10 MHz to 210 MHz
FULL SIZE D.I.L
M package
HALF SIZE D.I.L
H package
M1700,
M1744,
M1748,
M1936,
M1945,
M2700,
M2744,
M2748
M1736,
M1745,
M1900,
M1944,
M1948,
M2736,
M2745,
H1700,
H1744,
H1748,
H1936,
H1945,
H2700,
H2744,
H2748
H1736,
H1745,
H1900,
H1944,
H1948,
H2736,
H2745,
TERMINATIONS
All ECL oscillators must be terminated. If required, internal terminating
resistors of any specified value may be factory-supplied
ENABLE/DISABLE
The M1900 and H1900 have Enable-Disable feature, which allows several
oscillators to be wire-OR'd, so that one frequency of several may be
selected. If Pin1. is “0”, the output is normal, However, when Pin1. is “1”,
the oscillator shuts-down, and the output goes to logic “0”'. The logic “0”
may be wire-OR'd.
AUTOMATED TESTING (ATE)
Automated testing can effectively be performed using the M1900, since
this model may be turned-off and “0”'d, allowing an ECL test frequency
to be inserted on the output node.
+5V
COMPLEMENTARY
OUTPUT
1
ON
(1)
’2700
’1700
&
’2700
14
(8)
7
(4)
8
CASE (5)
OUTPUT
Half size connections shown in ( )
Fig. 1
+5V
ENABLE: FLOAT OR “0”
DISABLE APPLY “1”
1
(1)
M1900
14
(8)
ELECTRICAL SPECIFICATIONS
Frequency Range
10 MHz to 210 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
75°
“1” Level
25°C
75°
Drive Required for 1900
(at ECL levels)
Rise and Fall Times
(20 to 80%)
Symmetry
All units, except ‘36 Models
All ‘36 Models
Aging
First year
After first year
1.0
45/55
48/52
3
1
MIN
4.75
TYP
5.0
45
MAX
5.25
60
UNITS
volts
mA
7
(4)
8
CASE (5)
OUTPUT
(“0”, WHEN
DISABLED)
Half size connections shown in ( )
Fig. 2
Note:
Outputs must be properly terminated
ENVIRONMENTAL SPECIFICATIONS
Temperature
Operating
Storage
0º to 70°C
-55º to +125°C
(V
C
–1.95)
(V
C
–1.95)
(V
C
–0.98)
(V
C
–0.92)
(V
C
–1.63)
(V
C
–1.60)
(V
C
–0.81)
(V
C
–0.735)
0.85
2.0
40/60
45/55
volts
volts
volts
volts
mA
ns
percent
percent
ppm
ppm/yr
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
Pins
– Kovar, 7 microinch gold over nickel
Bend Test
– Will withstand two bends of 90° from reference
Header
– Steel, 7 microinch gold over nickel
Case
– Stainless steel, type 304
Marking
– Epoxy ink or laser engraved
Resistance to Solvents
– MIL STD 202, Method 215
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
2 of 3
CRYSTAL OSCILLATORS
10KH PECL 5V
Thru-Hole /Gull Wing
Commercial: 0º to 70º
10 MHz to 210 MHz
FULL SIZE D.I.L
M package
HALF SIZE D.I.L
H package
M1700,
M1744,
M1748,
M1936,
M1945,
M2700,
M2744,
M2748
M1736,
M1745,
M1900,
M1944,
M1948,
M2736,
M2745,
H1700,
H1744,
H1748,
H1936,
H1945,
H2700,
H2744,
H2748
H1736,
H1745,
H1900,
H1944,
H1948,
H2736,
H2745,
CONNECTIONS
PINS
Full
Half
Size
Size
1.
7.
8.
14.
CASE
“0” FOR NORMAL OPERATION
“1” FOR DISABLE (“0” OUTPUT)
50Ω
+5V
Power
Supply
GND
MA
IMF
+3V
1
(1)
14
(8)
H1700, H2700, H1900
M1700, M2700, M1900
Models
Not used in Single Output or Used for Complementary Output (Same termination as Pin 8.)
Used for H1900 and M1900. Float or “0” for normal operation, “1” for “0” Output
Electrical Ground and Case
Output requires termination of
270 ohms to Pin 7 (4) or 50 ohms to +3V
+5V, V
DD
Tied to Pin 7.
1.
4.
5.
8.
350 MHz
SCOPE
COAX
Y-OUTPUT
1900’s
7
(4)
8
(5)
COUNTER
Half Size connections shown in ( )
To adapt Fet probe to receptacle
use Tektronix Part #103-0164-00
To connect output to scope use
Tektronix Part #131-0258-00
(receptacle)
TEST CIRCUIT FOR 1900’s
COMPLEMENTARY OUTPUT
FOR 2700’s
50Ω
+5V
Power
Supply
GND
MA
IMF
+3V
1
(1)
350 MHz
SCOPE
COAX
Y-OUTPUT
1700’s
&
2700’s
14
(8)
7
(4)
8
(5)
COUNTER
Half Size connections shown in ( )
To adapt Fet probe to receptacle
use Tektronix Part #103-0164-00
To connect output to scope use
Tektronix Part #131-0258-00
(receptacle)
Fig. 3 M1700-80M
TEST CIRCUIT FOR 2700’s HAVE ADDITIONAL OUTPUT ON PIN 1.
HOW TO ORDER
For Part Number, put package type before model number,
and add frequency in MHz, for example:
M 1700 - 77.76M
“M” is full size DIL
“H” is half size DIL
“1700”
is model
type
“77.76 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#
M1700
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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