EC31
Series
• RoHS Compliant (Pb-free)
• Voltage Controlled Crystal Oscillator (VCXO)
• 5.0V Supply Voltage
• HCMOS/TTL output
• 14 pin DIP package
• Stability to ±20ppm
• Wide frequency and pull range
ELECTRICAL SPECIFICATIONS
Frequency Range (MHz)
Operating Temperature Range
Storage Temperature Range
Supply Voltage (V
DD
)
Aging (at 25°C)
Load Drive Capability
Start Up Time
Frequency Deviation /
Control Voltage
EC31
H 5.08
L 20.8
W 13.2
OSCILLATOR
2.5V
DC
±2.0V
DC
Positive Transfer Characteristic,
2.5V
DC
±2.0V
DC
Positive Transfer Characteristic,
2.5V
DC
±2.0V
DC
Positive Transfer Characteristic,
2.5V
DC
±2.5V
DC
Positive Transfer Characteristic, or
Linearity
Input Current
1.000MHz to 20.000MHz
20.001MHz to 30.000MHz
30.001MHz to 155.520MHz
Inclusive of Operating Temperature
Range, Supply Voltage, and Load
w/TTL Load
w/HCMOS Load
w/TTL Load
w/HCMOS Load
at 1.4V
DC
w/TTL Load; at 50% of Waveform
w/HCMOS Load
at 1.4V
DC
w/TTL Load and w/HCMOS Load
0.4V
DC
to 2.4V
DC
w/TTL Load; 20%
to 80% of Waveform w/HCMOS Load
Freq. Deviation Options Blank, A or B
Freq. Deviation Options C
Freq. Deviation Options Blank, A or B
Freq. Deviation Options Blank, A or B
Freq. Deviation Options C
Freq. Deviation options Blank, A or B
MANUFACTURER
CATEGORY
SERIES
PACKAGE
Frequency Tolerance / Stability
Output Voltage Logic High (V
OH
)
Output Voltage Logic Low (V
OL
)
Duty Cycle
1.000MHz to 155.520MHz
0°C to 70°C or -40°C to 85°C
-55°C to 125°C
5.0V
DC
±5%
±5ppm / year Maximum
10TTL Load or 15pF HCMOS Load Maximum
10 mSeconds Maximum
±50ppm Minimum
±100ppm Minimum
±150ppm Minimum
±200ppm Minimum
±20%, ±15%, ±10% Maximum, or
±5% Maximum (not avail. w/±200ppm Freq. Dev.)
20mA Maximum
40mA Maximum
50mA Maximum
±100ppm, ±50ppm, ±25ppm, or
±20ppm Maximum (0°C to 70°C only)
2.4V
DC
Minimum
V
DD
-0.5V
DC
Minimum
0.4V
DC
Maximum
0.5V
DC
Maximum
50 ±10(%) (Standard)
50 ±5(%) (Optional)
5 nSeconds Maximum
±100pSeconds Max
≤44.736MHz
±100pSeconds Max
≤30.000MHz
±200pSeconds Max >30.000MHz
±200pSeconds Max >44.736MHz
±25pSeconds Max
≤44.736MHz
±25pSeconds Max
≤30.000MHz
±50pSeconds Max >30.000MHz
±50pSeconds Max >44.736MHz
VOLTAGE
CLASS
REV
.
DATE
Rise Time / Fall Time
Period Jitter: Absolute
Period Jitter: One Sigma
ECLIPTEK CORP.
OSCILLATOR
EC31
14 pin DIP
5.0V
OS13
08/06
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
PART NUMBERING GUIDE
EC31 00 T A 15 ET - 24.000M - G
FREQUENCY TOLERANCE / STABILITY
00=±100ppm Maximum (Standard)
45=±50ppm Maximum, 25=±25ppm Maximum
20=±20ppm Maximum
DUTY CYCLE
Blank=50 ±10(%) (Standard), T=50 ±5(%)
FREQUENCY DEVIATION
Blank=±50ppm Minimum (Standard)
A=±100ppm Minimum
B=±150ppm Minimum,
C=±200ppm Minimum (2.5V
DC
±2.5V
DC
)
AVAILABLE OPTIONS
Blank=None (Standard)
CLXXX=Custom Lead Length (See Page 133)
G=Full Size Gull Wing (See Page 132)
FREQUENCY
OPERATING TEMP. RANGE
Blank=0°C to 70°C (Standard)
ET=-40°C to 85°C
LINEARITY
Blank=20% Maximum(Standard)
05=5% Maximum, 10=10% Maximum
15=15% Maximum
NOTES
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MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
MARKING SPECIFICATIONS
Pin 1: Control Voltage (V
C
)
Pin 7: Case Ground
Pin 8: Output
Pin 14: Supply Voltage
Line 1: ECLIPTEK
Line 2: EC31
Series Designator
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
Characteristic
Seal Integrity
Solderability
Marking Permanency
Shock
Vibration
Specification
Bubble test in Perfluorocarbon at +125°C ±5°C for 60 seconds
minimum.
Sn63 Solder dip at +230°C ±5°C for 5 seconds/95% coverage.
10 Strokes with brush after 1 minute soak in solvent, 3 times.
Random drop on hard wooden plate 3 times from a height
of 20cm.
Frequency with an amplitude of 1.5mm sweeping between 10Hz
to 55Hz within 1 minute (approximately) for 2 hours minimum on
each axis (X, Y and Z) for a total of 6 hours.
CATEGORY
SERIES
PACKAGE
VOLTAGE
Line 3: XX.XXX M
Frequency in MHz
(5 Digits Maximum + Decimal)
Line 4: XX Y ZZ
Week of Year
Last Digit of Year
Ecliptek Manufacturing Identifier
Note: Pin 1 shall be designated with a dot
MANUFACTURER
CLASS
REV
.
DATE
ECLIPTEK CORP.
OSCILLATOR
EC31
14 pin DIP
5.0V
OS13
08/06
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
