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PHONE: (434) 295-3101
FAX: (434) 977-1849
Charlottesville, VA USA
www.isotemp.com
OCXO 82-1003
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
BY APV
DATE
- BTG TST 03-04-2006
ISOTEMP RESEARCH INC. CODE ID MODEL NO. PAGE OF TOTAL DWG. NO. REV.
CHARLOTTESVILLE, VA.
USA
31785 OCXO 82-1003
1
2 114-1243 -

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Charlottesville, VA USA
www.isotemp.com
OCXO 82-1003
1. OUTPUT (PIN = "R.F. OUTPUT")
1.1. Frequency
1.2. Waveform
1.3. Level
a. "1" level
b. "0" level
1.4. Load
1.5. Duty cycle
1.6. Rise/fall time
1.7. Spurious
2. FREQUENCY STABILITY
2.1. Ambient
2.2. Aging
a. At time of shipment
b. After indefinite storage
i. Daily
ii. Yearly
iii. 10 years
2.3. Voltage
2.4. Short term
2.5. Warm-up/Retrace
2.6. Phase noise
a. @ 10 Hz
b. @ 100 Hz
c. @ 10 kHz
3. MECHANICAL FREQUENCY ADJUSTMENT
3.1. Range
3.2. Resolution
3.3. Control
4. INPUT POWER (PIN = "+VDC")
4.1. Voltage
4.2. Current
4.3. Steady state
5. MECHANICAL
5.1. Applicable series
5.2. Model number
5.3. Outline drawing
8.192 MHz
Rectangular
TTL / HCMOS
> +4.4 V
< +0.4 V
3 TTL
45% to 55% @ +2.5 V
< 6 ns (10% to 90%)
< -60 dBc
< ±1x10-8, 0°C to +60°C
(referenced to +30°C)
< ±1x10-9/day
< ±1x10-9 after 30 days
< ±1x10-7
< ±4x10-7
< ±5x10-9/±10% change
< 5x10-11/second
root Allan variance
< ±2x10-8 after 0.5 hour
(referenced to turn-off frequency
after specified aging is met, and
following 24 hours off power)
(at constant temperature and voltage)
< -120 dBc
< -140 dBc
< -150 dBc
> ±4x10-7
< ±4x10-9
Multi-turn trimmer
+12 V ±10%
< 400 mA @ turn on
< 2 Watts @ +25°C
OCXO 82 series
OCXO 82-1003
125-530
ISOTEMP RESEARCH INC. CODE ID MODEL NO. PAGE OF TOTAL DWG. NO. REV.
CHARLOTTESVILLE, VA.
USA
31785 OCXO 82-1003
2
2 114-1243 -

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2.00
50.8
SQUARE
0.12
3.05
MAX.
(VIEW FROM TOP)
0.41
10.41
0.03
0.76
0.20
5.08
MIN.
CL
1.400
35.56
CENT.
1.400
35.56
CENT.
1
2
TRIM ACCESS
PIN CONNECTIONS
PIN
1
2
3
4
(See Note 1)
FUNCTION
+VDC
R. F. OUTPUT
0 VOLTS & CASE
VCO INPUT
or
NOT CONNECTED
Note 1. If the specification does not specify
parameters for PIN4 then PIN4 is NOT
internally CONNECTED.
0.68
0.33 17.27
8.38
0.030
0.76
DIA. PIN
(4 PLACES)
METAL STANDOFF
(4 PLACES)
1.00
25.4
CENT.
34
1.200
30.48
1.650
41.91
CENT.
(VIEW FROM BOTTOM)
NUMBERS FOR REFERENCE ONLY
(NOT STAMPED ON UNIT)
INCH
mm (REFERENCE ONLY)
Form NO. 120-081E
OSCILLATORS
NAME: OUTLINE DRAWING
(OCXO 82 SERIES)
CODE I.D. NO.
31785
Charlottesville, Virgina USA
SCALE: 1:1
DATE: 11-11-1997
DWN. BY: PAD APPR'D. BY: DAG
A ADDED METRIC DIMENSIONING AND REVISED PINOUTS.
LET REVISION
LRB DAG
BY APP
01-02-02
DATE
TOLERANCES
UNLESS OTHERWISE SPECIFIED:
ANGES: ±1 DEGREE
FRACTIONS: ±1/32 INCH
DECIMALS: .XX ± .015, .XXX ± .010 INCH
MATERIAL: COLD ROLLED STEEL
FINISH: BRIGHT NICKEL
MARK: LABEL