ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 • 914-576-6570 • Fax: 914-576-6204 • http://www.mfelectronics.com • email:mfsales@mfelec.com
VOLTAGE
CONTROLLED
OSCILLATORS
10KH PECL Logic, 0° to 70°C
102
These thru-hole PECL VCXOs generate a PECL
frequency output which is controlled by an input
voltage. The end-point frequency/voltage parameters
are defined, as is the center frequency.
CAPTURE RANGE
The Frequency-Capture range is equal to the (Center-Frequency ± the
Frequency Deviation), because every MF VCXO is ATE-tested to meet the
Frequency-Deviation over the temperature range. Frequency Capture
specification includes all effects of temperature and supply voltage.
It is not necessary to make additional capture allowances.
FEATURES
•Frequency from 1 MHz to 175 MHz
•Capture-range is fully defined, under all conditions
•Start-up time less than 5 ms.
•10 KH Logic
FULL SIZE D.I.L.
M2051 thru M2057
L2051 thru L2057
M2061 thru M2063
L2061 thru L2063
M2071 thru M2073
L2071 thru L2073
Thru-Hole, 5V
1 MHz to 175 MHz
PECL 10KH –
Thru-Hole VCXOs, 5V
These thru-hole VCXOs are designed for
compatibility with digital and communications
systems based on the PECL 10KH logic family.
They provide fast rise times, wide frequency
range, and good waveform symmetry at
economical cost.
Users have a choice of a dozen off-the-shelf
models. Diverse combinations of pull, control
voltage and center frequency deviation are
available, accommodating a wide variety of
filtering and driving circuitry. These VCXOs are
hermetically sealed in full size (M) DIL packages
with four pins. MF Electronics’ PECL VCXOs
and are available at frequencies from 12.5 to
175 MHz. Frequency stability choices extend
from ±25 ppm, to 50 ppm.
All VCXOs are single-ended and tested and
guaranteed over the full operating temperature.
For superior performance, including comple-
mentary outputs, see our series 2900s VCXOs
based on ECLPS logic.
“M” Package – “L” Package
is same as “M”
but seated height is 0.190
.600 ± .005
.800 ± .005
.018 ± .001
DOT
DENOTES
PIN 1
Pin 7
Pin 8
Pin 1
Pin 14
GLASS INSULATORS (4)
on .48 x .18 ctrs.
.400
.300 ± .005
.060 TYP
.215 MAX
.200 MAX
.15 MIN
.300 ±. 005
.250 MAX
.150
.008/025
.500 ± .005
.100 ± .005
CONNECTIONS
Full
Size
Pin 1. Control Voltage, VC
Pin 7. Ground & Case
Pin 8. Output
Pin 14. +5 Volts, VDD
ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 • 914-576-6570 • Fax: 914-576-6204 • http://www.mfelectronics.com • email:mfsales@mfelec.com
VOLTAGE CONTROLLED OSCILLATORS
10KH PECL Logic, 0° to 70°C
Thru-Hole, 5V
1 MHz to 175 MHz
103
Center Frequency is Between Two Voltages
with ±50 ppm stability
Center Frequency is at 2.5V with ±50 ppm stability
Center Frequency is at 2.5V with ±25 ppm stability
FULL SIZE D.I.L.
M2051 thru M2057
L2051 thru L2057
M2061 thru M2063
L2061 thru L2063
M2071 thru M2073
L2071 thru L2073
Guaranteed Control Center
Control Frequency Capture Voltage Frequency
MODEL Voltage Deviation Range at Center Stability
(Volts) (ppm) (ppm) Frequency (ppm)
2051 0.3 to 10.0 ± 175 min ± 175 2.5 to 5.0
2052 0.3 to 4.0 ± 75 min ± 75 1.3 to 2.3
2053 0.3 to 10.0 ± 175 to 300 ± 175 2.5 to 5.0 ± 30, typ
2054 0.3 to 4.0 ± 125 min ± 125 1.3 to 2.3 ± 50, max
2055 1.0 to 4.0 ± 75 to 300 ± 75 1.8 to 3.0
2056 0 to 5.0 ± 150 min ± 150 —
2057 0.5 to 4.5 ± 125 to 250 ± 125 1.8 to 3.0
Guaranteed Control Center
Control Frequency Capture Voltage Frequency
MODEL Voltage Deviation Range at Center Stability
(Volts) (ppm) (ppm) Frequency (ppm)
2061 0.5 to 4.5 ± 75 to 150 ± 75 2.5 ± 30, typ
2062 0.5 to 4.5 ± 100 to 200 ± 100 2.5 ± 50, max
2063 0.5 to 4.5 ± 150 to 300 ± 150 2.5
Guaranteed Control Center
Control Frequency Capture Voltage Frequency
MODEL Voltage Deviation Range at Center Stability
(Volts) (ppm) (ppm) Frequency (ppm)
2071 0.5 to 4.5 ± 75 to 150 ± 75 2.5 ± 20, typ
2072 0.5 to 4.5 ± 100 to 200 ± 100 2.5 ± 25, max
2073 0.5 to 4.5 ± 150 to 300 ± 150 2.5
DESCRIPTIONS
M2051, L2051 ±175 ppm, min. deviation when using
0.3 to 10V control-voltage
M2052, L2052 ±75 ppm, min. deviation when using
0 to 4.0V control-voltage
M2053, L2053 ±175 ppm to ±300 ppm deviation when using
0.3 to 10V control-voltage
M2054, L2054 ±125 ppm min. deviation when using
0.3 to 4.0V control-voltage
M2055, L2055 ±75 ppm to ±300 ppm deviation when using
1.0 to 4.0V control-voltage, for use where the
control voltage is 1 volt off both rails
M2056, L2056 ±150 ppm, min. deviation when using
0 to 5.0V rail-to-rail control-voltage
M2057, L2057 ±125 ppm to ±250 ppm deviation when using
0.5 to 4.5V control-voltage
M2061, L2061 ±75 ppm capture when using using 0.5 to 4.5V
control-voltage and 2.5V center with ±50 ppm stability
M2062, L2062 ±100 ppm capture when using using 0.5 to 4.5V
control-voltage and 2.5V center with ±50 ppm stability
M2063, L2063 ±150 ppm capture when using using 0.5 to 4.5V
control-voltage and 2.5V center with ±50 ppm stability
M2071, L2071 ±75 ppm capture when using using 0.5 to 4.5V
control-voltage and 2.5V center with ±25 ppm stability
M2072, L2072 ±100 ppm capture when using using 0.5 to 4.5V
control-voltage and 2.5V center with ±25 ppm stability
M2073, L2073 ±150 ppm capture when using using 0.5 to 4.5V
control-voltage and 2.5V center with ±25 ppm stability
FREQUENCY STABILITY
Frequency stability vs. Temperature (0 to 70°C) is typically better than
±20 ppm. Since the deviation of each oscillator is tested and guaranteed
over the whole operating temperature range, it is not necessary to make
additional capture allowance. All oscillators will capture frequencies with the
full minimum values of the deviation under all conditions.
QUALITY
Each VCXO is computer-tested at three temperatures to guarantee
full compliance to the specification.
114
7 8
LOAD
MA
GND
+5V
Power
Supply
FET PROBE
350 MHz
SCOPE
Y-OUTPUT
COUNTER
VDD
PIN 1.
CONTROL VOLTAGE
To adapt Fet probe to receptacle
use Tektronix Part #103-0164-00
To connect output to scope use
use Tektronix Part #131-0258-00 (receptacle)
ALL OSCILLATORS HAVE INTERNAL BYPASS CAPACITORS
TEST CIRCUIT
ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 • 914-576-6570 • Fax: 914-576-6204 • http://www.mfelectronics.com • email:mfsales@mfelec.com
VOLTAGE CONTROLLED OSCILLATORS
10KH PECL Logic, 0° to 70°C
Thru-Hole, 5V
1 MHz to 175 MHz
104
FULL SIZE D.I.L.
M2051 thru M2057
L2051 thru L2057
M2061 thru M2063
L2061 thru L2063
M2071 thru M2073
L2071 thru L2073
SPECIFICATIONS
Temperature
Operating 0 to 70°C
Storage –55 to +125°C
Frequency Stability
VC= 2.5V ±20, ±25 or ±50 ppm, max.
as shown in model specification
MIN. TYP MAX UNITS
Input Voltage 4.5 5.0 5.5 volts
Input Current 30 45 ma
Output Levels
“0” Level
25°C
(VDD -1.95) (VDD -1.63)
volts
70°C
(VDD -1.95) (VDD -1.60)
volts
“1” Level
25°C
(VDD -0.98) (VDD -0.81)
volts
70°C
(VDD -0.92) (VDD -.735) v
olts
Rise and Fall Times
(20 to 80%) 1.0 2.0 ns
Symmetry 48/52 45/55 percent
Input Impedance,
Pin 5., Control Voltage 15 1000 Kohms
Control Voltage Bandwidth 15 150 KHz
ENVIRONMENTAL SPECIFICATIONS
Temperature Cycle – Not to exceed ±5 ppm change when exposed to 2
hours maximum at each temperature from 0 to 120°C, with 25°C reference
Shock – 1000 G's, 0.35 ms, 1/2 sine wave, 3 shocks in each plane
Vibration – 10-2000 Hz of .06" d.a. or 20 G's, whichever is less
Humidity – Resistant to 85° R.H. at 85°C
MECHANICAL SPECIFICATIONS
Gross Leak – Each unit checked in 125°C flurocarbon
Fine Leak – Mass spectrometer leak rate less than 2 X 10-8 atmos,
cc/sec of helium
Pins – Kovar, with 7 microinch gold over nickel
Bend Test – Will withstand two bends of 90° from reference
Header – Steel, with gold over nickel
Case – Stainless steel, type 304
Marking – Printing is black epoxy ink
Resistance to Solvents – MIL STD 202, Method 215
AGING
3 to 5 ppm, first year, typ.
1 ppm per year thereafter, typ.
Fig. 1 M2072-80M
ELECTRONICS
10 Commerce Drive, New Rochelle, NY10801 • 914-576-6570 • Fax: 914-576-6204 • http://www.mfelectronics.com • email:mfsales@mfelec.com
VOLTAGE CONTROLLED OSCILLATORS
10KH PECL Logic, 0° to 70°C
Thru-Hole, 5V
1 MHz to 175 MHz
105
0.0 1.0 2.0 3.0 4.0 5.0
Control Voltage, Vc
Deviation from Nominal Frequency, ppm
VDD = 5.5V
VDD = 5.0V
VDD = 4.5V
-250
-200
-150
-100
-50
0
50
100
150
200
250
0.0 1.0 2.0 3.0 4.0 5.0
Control Voltage, Vc
Deviation from Nominal Frequency, ppm
VDD = 5.5V
VDD = 5.0V
VDD = 4.5V
-250
-200
-150
-100
-50
0
50
100
150
200
250
0.0 1.0 2.0 3.0 4.0 5.0
Control Voltage, Vc
Deviation from Nominal Frequency, ppm
VDD = 5.5V
VDD = 5.0V
VDD = 4.5V
-250
-200
-150
-100
-50
0
50
100
150
200
250
Fig. 2 Deviation vs. Control Voltage
at 0°C
Fig. 3 Deviation vs. Control Voltage
at 25°C
Fig. 4 Deviation vs. Control Voltage
at 70°C
HOW TO ORDER
For Part Number, put package type before model number,
and add frequency in MHz, for example:
“M” is full size DIL
“H” is half size DIL
“L” is low height,
full size DIL
“2056”
is model
type
M 2056 - 126M G
“126 M”
frequency in MHz
Add
“G”
for
gullwing
FULL SIZE D.I.L.
M2051 thru M2057
L2051 thru L2057
M2061 thru M2063
L2061 thru L2063
M2071 thru M2073
L2071 thru L2073
DEVIATION vs CONTROL VOLTAGE
FOR M2073-80M, TYPICAL
