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OCXO 131-1001
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
-
A Put on new form.
DWN. BY APV. BY
DATE
BTG TST 03-04-2006
JTL TST 08-15-2011
1. OUTPUT(PIN = "R.F. OUTPUT")
1.1. Frequency
1.2. Waveform
1.3. Level
1.4. Load
1.5. Harmonics
1.6. 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. Load
2.5. Warm-up
2.6. Phase Noise
a. @ 1 Hz
b. @ 10 Hz
c. @ 100 Hz
d. @ 1 kHz
e. @ 10 kHz
10.000000 MHz
Sine wave
+8 ±2 dBm
50 Ω ±5%
< -30 dBc
< -60 dBc
< ±2x10-8, 0C to +70C
(referenced to +25C)
< ±1x10-9/day
< ±1x10-9 after 30 days
< ±1x10-7
< ±3x10-7
< ±1x10-8/±5% change
< ±5x10-9/±5% change
< ±2x10-8 in 5 minutes @ +25 ±1C
(referenced to 4 hours)
< -90 dBc
< -120 dBc
< -140 dBc
< -148 dBc
< -150 dBc
OUR PERFORMANCE
YOUR REPUTATION
MODEL NO.
OCXO 131-1001
PAGE OF TOTAL
12
DWG. NO. REV.
114-1245
A

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OCXO 131-1001
www.isotemp.com www.taitien.com
3. ELECTRICAL FREQUENCY ADJUSTMENT (PIN = "VCO INPUT")
3.1. Range
> ±4x10-7
< ±9x10-7 (At time of shipment)
(Referenced to nominal frequency)
3.2. Control
0 to +5 V
3.3. Slope
Positive
3.4. Center Voltage
+2.5 ±0.5 V
(Control voltage at which nominal
frequency occurs at time of shipment)
NOTE: When not connected, VCO INPUT is internally held at this voltage.
3.5. Input impedance
> 100 kΩ
4. INPUT POWER (PIN = "+VDC")
4.1. Voltage
4.2. Current
4.3. Steady state
+12 V ±5%
< 350 mA @ turn on
< 1.5 Watts @ +25C
5. REFERENCE VOLTAGE (PIN = "REFERENCE VOLTAGE"), an output
5.1. Voltage
+8 V ±5%
5.2. Load
> 9 kΩ
5.3. Temperature stability
< ±0.0015 V
(Over temperature range in 2.1)
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 131 series
OCXO 131-1001
125-587
OUR PERFORMANCE
YOUR REPUTATION
MODEL NO.
OCXO 131-1001
PAGE OF TOTAL
22
DWG. NO. REV.
114-1245
A

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MOD:
FREQ.:
S/N:
DATE:
(VIEW FROM TOP)
MARKING THIS
SURFACE
0.737 MAX.
18.72
PIN CONNECTIONS
PIN FUNCTION
1
VCO INPUT
or
(See Note 1) NOT CONNECTED
2
REFERENCE VOLTAGE
or
(See Note 1) OVEN MONITOR
or
NOT CONNECTED
3 +VDC
4 R. F. OUTPUT
5 0 VOLTS & CASE
0.026
0.66
0.20
5.08
MIN.
0.031
DIA. PIN (5 PLACES)
0.79
GLASS STANDOFF
(4 PLACES)
Note 1. If the specification does not specify
parameters for either PIN1 or PIN2 then that
respective PIN is NOT internally CONNECTED.
MARKING
1.43 MAX.
36.32
1.000
25.40
CENT.
3
CL 2
1
4
5
0.700 CENT.
17.78
1.07
27.18
(VIEW FROM BOTTOM)
NUMBERS FOR REFERENCE ONLY
(NOT STAMPED ON UNIT)
MOD:
FREQ.:
S/N:
DATE:
MOD:
FREQ.:
S/N:
DATE:
OSCILLATORS
NAME: OUTLINE DRAWING
(TCXO 141 & OCXO 131 SERIES)
A 1.07 WAS 1.07 MAX
B NEW FORM AND UPDATED MARKING.
C HEIGHT WAS .750 AND UPDATED MARKING.
LET REVISION
INCH
mm (REFERENCE ONLY)
Form NO. 120-081E
CODE I.D. NO.
31785
Charlottesville, Virgina USA
SCALE: 1:1
DATE: 12-04-2000
DWN. BY: LRB
APPR'D. BY: DAG
DAG
BTG
BTG
BY
TST
JRD
TST
APP
12-06-2001
02-01-2008
04-16-2010
DATE
TOLERANCES
UNLESS OTHERWISE SPECIFIED:
ANGES: ±1 DEGREE
FRACTIONS: ±1/32 INCH
DECIMALS: .XX ± .015, .XXX ± .010 INCH
MATERIAL: STEEL
FINISH: NICKEL
MARK: LABEL