EB72F81
Series
• Oven Controlled Crystal Oscillator (OCXO)
• AT-Cut Crystal
• HCMOS output
• 3.3V supply voltage
• 5 pin DIP package
• External control voltage option available
• Stability to 80ppb
ELECTRICAL SPECIFICATIONS
Frequency Range
Operating Temperature Range (OTR)
Storage Temperature Range
Supply Voltage (V
DD
)
Frequency Tolerance / Stability
at Nominal V
DD
and V
C
, at 25°C
vs. Initial Tolerance
vs. Temperature Stability
vs. Vdd
vs. Load
vs. Aging (1 Day)
vs. Aging (1 Year)
vs. Aging (10 Years)
Crystal Cut
Warm Up Time
Power Consumption
Output Voltage Logic High (V
OH
)
Output Voltage Logic Low (V
OL
)
Rise Time / Fall Time
at Nominal V
DD
and V
C
V
DD
±5%
Vload ±5%
after 72 Hours of Operation
after 72 Hours of Operation
after 72 Hours of Operation
to ±500ppb of Final Frequency at 1 Hour at 25°C
at Steady State, at 25°C
During Warm Up, at 25°C
I
OH
= -4mA
I
OL
= +4mA
< 10.000MHz Measured at 20% to 80% of Waveform
> 10.000MHz Measured at 20% to 80% of Waveform
Measured at 50% of Waveform
EB72F81
H 16.0
L 36.1
W 27.2
OSCILLATOR
1.544MHz to 44.736MHz
0°C to 50°C, 0°C to 70°C, or -20°C to 70°C
-55°C to 125°C
3.3V
DC
±5%
±2.0ppm, ±1.5ppm, ±1.0ppm , ±500ppb, or
±300ppb Maximum
±80ppb, ±100ppb, ±200ppb, ±280ppb, or
±500ppb Maximum
±20ppb Maximum
±20ppb Maximum
±3.0ppb Maximum
±500ppb Maximum
±3.0ppm Maximum
AT-Cut
3 Minutes Maximum
2.2 Watts Maximum
3.0 Watts Maximum
2.6V
DC
Minimum
0.4V
DC
Maximum
10 nSec Maximum
6 nSec Maximum
50 ±5(%)
15pF HCMOS Load Maximum
±7ppm Minimum, ±20ppm Maximum
0.0V
DC
to V
DD
1.65V
DC
±1.35V
DC
Positive Transfer Characteristic
2.8V
DC
±0.2V
DC
±10% Maximum
10kOhms Typical
-75dBc/Hz
-100dBc/Hz
-130dBc/Hz
-140dBc/Hz
-150dBc/Hz
VOLTAGE
CLASS
REV
.
DATE
Duty Cycle
Load Drive Capability
Referenced to F
O
at V
C
= 1.65V
DC
; V
DD
=5.0V
DC
over OTR
Frequency Deviation
Control Voltage Range
Control Voltage (V
C
)
Transfer Function
Reference Voltage Output
Linearity
Input Impedance
Typical Phase Noise (at 12.800MHz)
1Hz Offset
10Hz Offset
100Hz Offset
1kHz Offset
10kHz Offset
MANUFACTURER
CATEGORY
SERIES
PACKAGE
ECLIPTEK CORP.
OSCILLATOR
EB72F81
5 pin DIP
3.3V
OS2G
01/04
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
PART NUMBERING GUIDE
EB72F81 A 10 B V 2 - 20.000M
INITIAL TOLERANCE
A=±2.0ppm, B=±1.5ppm, C=±1.0ppm, D=±500ppb,
E=±300ppb
FREQUENCY STABILITY
2 Digit Code Per Table 1
OPERATING TEMPERATURE RANGE
1 Letter Code Per Table 1
FREQUENCY
DUTY CYCLE
2=50% ±5%
VOLTAGE CONTROL OPTION
N=None (No Connect on Pin 1 and Pin 2)
V=Voltage Control on Pin 1 and Reference
Voltage Output on Pin 2
MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
Pin 1: No Connect or Voltage Control
Pin 2: No Connect or Reference Voltage Output
Pin 3: Supply Voltage
Pin 4: Output
Pin 5: Case/Ground
MARKING SPECIFICATIONS
Line 1: ECLIPTEK
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
Characteristic
Gross Leak Test
Mechanical Shock
Vibration
Lead Integrity
Solderability
Temperature Cycling
Resistance to Soldering Heat
Resistance to Solvents
Specification
MIL-STD-883, Method 1014, Condition C
MIL-STD-202, Method 213, Condition C
MIL-STD-883, Method 2007, Condition A
MIL-STD-883, Method 2004
MIL-STD-883, Method 2002
MIL-STD-883, Method 1010
MIL-STD-883, Method 210
MIL-STD-883, Method 215
Line 2: XX.XXX M
Frequency in MHz
(5 Digits Maximum + Decimal)
Line 3: XX Y ZZ
Week of Year
Last Digit of Year
Ecliptek Manufacturing Identifier
Note: Pin 1 shall be designated with a dot
MANUFACTURER
CATEGORY
SERIES
PACKAGE
VOLTAGE
CLASS
REV
.
DATE
ECLIPTEK CORP.
OSCILLATOR
EB72F81
5 pin DIP
3.3V
OS2G
01/04
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
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