EC31
Series
• RoHS Compliant (Pb-free)
• Voltage Controlled Crystal Oscillator (VCXO)
• 5.0V Supply Voltage
• CMOS/TTL output
• 8 pin DIP package
• Stability to ±20ppm
• Wide frequency and pull range
NOTES
EC31
H 5.6
L 13.2
W 13.2
OSCILLATOR
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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
Linearity
Input Current
1.000MHz to 20.000MHz
20.0001MHz to 30.000MHz
30.001MHz to 44.736MHz
Frequency Tolerance / Stability
Inclusive of Operating Temperature
Range, Supply Voltage, and Load
Output Voltage Logic High (V
OH
)
w/TTL Load
w/CMOS Load
Output Voltage Logic Low (V
OL
)
w/TTL Load
w/CMOS Load
Duty Cycle
at 1.4V
DC
w/TTL Load; at 50% of Waveform
w/CMOS Load
at 1.4V
DC
w/TTL Load and CMOS Load
Rise Time / Fall Time
0.4V
DC
to 2.4V
DC
w/TTL Load; 20%
to 80% of Waveform w/CMOS Load
Period Jitter: Absolute
Period Jitter: One Sigma
1.000MHz to 44.736MHz
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 CMOS Load Maximum
10 mSeconds Maximum
±50ppm Minimum
±100ppm Minimum
±150ppm Minimum
±20%, ±15%, ±10% Maximum, or
±5% Maximum
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 Maximum
±25pSeconds Maximum
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,
MANUFACTURER
CATEGORY
SERIES
PACKAGE
VOLTAGE
CLASS
REV
.
DATE
ECLIPTEK CORP.
OSCILLATOR
EC31
8 pin DIP
5.0V
OS18
08/06
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
PART NUMBERING GUIDE
EC31 00 HS T A 15 ET - 24.000M - G TR
FREQUENCY TOLERANCE / STABILITY
00=±100ppm Maximum (Standard)
45=±50ppm Maximum, 25=±25ppm Maximum
20=±20ppm Maximum
PACKAGE
HS=Half Size 8 Pin DIP
DUTY CYCLE
Blank=50 ±10(%) (Standard), T=50 ±5(%)
FREQUENCY DEVIATION
Blank=±50ppm Minimum (Standard)
A=±100ppm Minimum
B=±150ppm Minimum
PACKAGING OPTIONS
Blank=Bulk (Standard)
TR=Tape & Reel (only offered with
Half Size G and Half Size G2 Options)
AVAILABLE OPTIONS
Blank=None (Standard)
CLXXX=Custom Lead Length (See Page 133)
G=Half Size Gull Wing (See Page 132)
G2=Alternate Half 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
MECHANICAL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
TAPE AND REEL DIMENSIONS
ALL DIMENSIONS IN MILLIMETERS
Pin 1 Locator for Gull Wing
(1) For “G” Option (2) For “G2” Option
Pin 1: Control Voltage (V
c
)
Pin 4: Case Ground
Pin 5: Output
Pin 8: Supply Voltage
MARKING SPECIFICATIONS
Line 1: ECLIPTEK
Line 2: EC31
Series Designator
250 Pieces Per Reel
Compliant to EIA-481A
ENVIRONMENTAL/MECHANICAL SPECIFICATIONS
Line 3: XX.XXX M
Frequency in MHz
(5 Digits Maximum + Decimal)
Characteristic
Seal Integrity
Week of Year
Last Digit of Year
Ecliptek Manufacturing Identifier
Note: Pin 1 shall be designated with a dot
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.
Line 4: XX Y ZZ
Solderability
Marking Permanency
Shock
Vibration
MANUFACTURER
CATEGORY
SERIES
PACKAGE
VOLTAGE
CLASS
REV
.
DATE
ECLIPTEK CORP.
OSCILLATOR
EC31
8 pin DIP
5.0V
OS18
08/06
800-ECLIPTEK www.ecliptek.com for latest revision
Specifications subject to change without notice.
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