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OCXO 147-1008 ~ 147-1010
www.isotemp.com www.taitien.com
CRYSTAL OSCILLATOR SPECIFICATION
This specification defines the operating characteristics of an ovenized crystal
oscillator. Long term stability is assured through use of premium components.
REV.
-
DESCRIPTION OF REVISION
DWN. BY APV. BY
DATE
JTL TST 08-16-2011
1. OUTPUT(PIN = "R.F. OUTPUT")
1.1. Frequency
1.2. Initial Accuracy
a. @ Temperature
b. After time on power
c. Within time period
following date code
d. @ VCO Input voltage
1.3. Waveform
1.4. Level
a. "1" level
b. "0" level
1.5. Load
1.6. Duty cycle
1.7. Spurious
26.000000 MHz
< ±1x10-6
+25 ±1C
30 ±5 minutes
90 days
+2.5 ±0.001 V
Rectangular
HCMOS
> +3.5 V
< +0.5 V
15 pF
45% to 55%@ +2.0 V
< -60 dBc
2. FREQUENCY STABILITY
2.1. Ambient
Temperature
Stability
< ±5x10-8
< ±1x10-7
0C ~ +70C
OCXO147-1008
OCXO147-1009
-30C ~ +70C
OCXO147-1010
Model Number
2.2. Aging
a. At time of shipment
< ±5x10-9/day
b. After indefinite storage
i. Daily
ii. Yearly
iii.10 years
2.3. Voltage
2.4. Short term
< ±5x10-9 after 30 days
< ±5x10-7
< ±3x10-6
< ±5x10-8/±5% change
< 2x10-10/1 second
root Allan variance
2.5. Warm-up
< ±1x10-7 in 2 minutes @ +25 ±1C
(referenced to 1 hour)
2.6. Phase Noise
a. @ 10 Hz
< -90 dBc
b. @ 100 Hz
< -125 dBc
c. @ 1 kHz
< -135 dBc
d. @ 10 kHz
< -145 dBc
OUR PERFORMANCE
MODEL NO.
PAGE OF TOTAL DWG. NO. REV.
YOUR REPUTATION OCXO 147-1008 ~ 147-1010 1
2 114-1476
-

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OCXO 147-1008 ~ 147-1010
www.isotemp.com www.taitien.com
3. ELECTRICAL FREQUENCY ADJUSTMENT (PIN = "VCO INPUT")
3.1. Range
> ±5x10-6
Referenced to frequency at nominal Center Voltage
3.2. Control
0 to +5 V
3.3. Slope
Positive
3.4. Center Voltage
+2.5 V
3.5. Linearity
3.6. Input impedance
< ±10%
> 50 kΩ
4. INPUT POWER (PIN = "+VDC")
4.1. Voltage
4.2. Current
4.3. Steady state
+5.0 V ±5%
< 500 mA @ turn on
< 0.8 Watts @ +25C
5. ENVIRONMENTAL
5.1. Storage temperature
5.2. Vibration (non-operating)
5.3. Shock (non-operating)
-40C to +85C
MIL-STD-202, Method 201 (0.06"
Total p-p, 10 to 55 Hz)
MIL-STD-202, Method 213, Test
Condition J (30 g, 11 ms half-sine)
6. RoHS
All units supplied under this MODEL NUMBER are RoHS compliant.
7. MECHANICAL(Outline drawing)
7.1. Applicable series
7.2. Model number
7.3. Outline drawing
OCXO 147 series
See Paragraph 2.1.
125-630
OUR PERFORMANCE
MODEL NO.
PAGE OF TOTAL DWG. NO. REV.
YOUR REPUTATION OCXO 147-1008 ~ 147-1010 2
2 114-1476
-

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TRIM ACCES
TOP SURFACE
(SEE NOTE 2)
MARKING THIS
SURFACE
Square corner designates PIN 1.
(VIEW FROM TOP)
PIN CONNECTIONS
PIN FUNCTION
1
VCO INPUT
or
(See Note 1) NOT CONNECTED
7 0 VOLTS & CASE
8 R.F. OUTPUT
14 +VDC
0.433
11.00
MAX.
Notes:
1.If the specification does not specify parameters for
PIN 1 then PIN 1 is not internally CONNECTED.
0.03
0.20
5.08
MIN.
0.76
0.018
0.45
DIA.
PIN
(4
PLACES)
GLASS STANDOFF
(4 PLACES)
2.If the specification does not specify parameters for
"MECHANICAL FREQUENCY ADJUSTMENT"
then there is no Trim Access.
MARKING
0.80
20.3
0.600
15.24
CENT.
17
14 8
0.300
7.62
CENT.
0.50
12.7
Number for reference only. (Not stamped on unit)
(VIEW FROM BOTTOM)
OSCILLATORS
NAME: OUTLINE DRAWING
(TCXO 128 SERIES/OCXO 147 SERIES)
A UPDATED MARKING.
B UPDATED MARKING.
LET REVISION
INCH
mm (REFERENCE ONLY)
Form NO. 120-081E
CODE I.D. NO.
31785
Charlottesville, Virgina USA
SCALE: 2:1
DATE: 10-19-2006
DWN. BY: BTG
APPR'D. BY: BTG
BTG
BTG
BY
JRD
TST
APP
03-05-2008
03-09-2010
DATE
TOLERANCES
UNLESS OTHERWISE SPECIFIED:
ANGES: ±1 DEGREE
FRACTIONS: ±1/32 INCH
DECIMALS: .XX ± .015, .XXX ± .010 INCH
MATERIAL: STEEL
FINISH: NICKEL
MARK: LABEL