OCXO-131-45.pdf 데이터시트 (총 4 페이지) - 파일 다운로드 OCXO-131-45 데이타시트 다운로드

No Preview Available !

OCXO 131-45
P.O. BOX 3389
CHARLOTTESVILLE, VIRGINIA 22903
PHONE: (804) 295-3101
FAX: (804) 977-1849
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
REQ. DWN.
BY BY
DATE
TST DWR 12-09-98
ISOTEMP RESEARCH INC. CODE ID. PART NO.
CHARLOTTESVILLE, VA.
USA 31785 OCXO 131-45
PAGE OF TOTAL DWG. NO. REV.
1 3 114-849 -

No Preview Available !

OCXO 131-45
1. 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
19.440 MHz
Rectangular
HCMOS
> +4.6 VDC
< +0.3 VDC
3 HCMOS/TTL loads
40% to 60% @ +2.5 VDC
< 15 ns between 10% and 90%
of "1" level minus "0" level
< -60 dBc
2. FREQUENCY STABILITY
2.1. Ambient
< 2.8x10-7 window from -40°C to +70°C
Goal
< ±1.4x10-7 from -40°C to +70°C
(referenced to +25°C)
2.2. Aging
a. At time of shipment
< ±2x10-8/day
b. After indefinite storage
i. Daily
< ±1x10-8 after 30 days
ii. Yearly
< ±1 PPM
iii. 20 years
< ±4 PPM
2.3. Voltage
< ±3x10-8/±5% change
2.4. Warm-up (Referenced to frequency at 2 hours)
a. At -40°C
< ±5 PPM in 52 seconds
b. At +25°C
< ±5 PPM in 27 seconds
(20 seconds goal)
c. -40°C to +70°C
< ±1x10-7 in 5 minutes
2.5. Phase noise
a. @ 100 Hz
< -115 dBc
b. @ 10 kHz
< -145 dBc
3. ELECTRICAL FREQUENCY ADJUSTMENT
3.1. Range
3.2. Control
3.3. Slope
3.4. Center
3.5. Linearity
3.6. Input impedance
> ±10 PPM
< ±20 PPM (At time of shipment)
(Referenced to nominal frequency)
0 VDC to +5 VDC
Positive
+2.5 VDC ±0.5 VDC
(control voltage at which nominal
frequency occurs at time of shipment)
< ±20%
> 20 k
ISOTEMP RESEARCH INC. CODE ID. PART NO.
CHARLOTTESVILLE, VA.
USA 31785 OCXO 131-45
PAGE OF TOTAL DWG. NO. REV.
2 3 114-849 -

No Preview Available !

OCXO 131-45
4. INPUT POWER
4.1. Voltage
4.2. Current
4.3. Steady state
a. @ +25°C
b. @ -40°C
+5 VDC ±5%
< 1.6 A @ turn on
< 1 Watt
< 2.5 Watts
5. ENVIRONMENTAL
5.1. Storage temperature
5.2. Vibration (non-operating)
5.3. Shock (non-operating)
5.4. Seal
5.5. Temperature cycling
-55°C to +105°C
MIL-STD-202F Method 201A. (0.06"
Total p-p, 10 to 55 Hz)
MIL-STD-202F, Method 213B, Test
Condition J.
(30 g, 11 ms half-sine)
MIL-STD-202F, Method 112C, Test
Condition D.
Unit must be able to withstand 10
cycles over the storage temperature
range with maximum time between
temperature endpoints of 15 minutes,
without any degradation in
performance or device seals.
6. REFERENCE VOLTAGE
6.1. Voltage
+3.7 VDC ±5%
(Not used for this application, should be left unconnected.)
7. MECHANICAL
7.1. Applicable series
7.2. Model number
7.3. Outline drawing
OCXO 131 series
OCXO 131-45
125-549
ISOTEMP RESEARCH INC. CODE ID. PART NO.
CHARLOTTESVILLE, VA.
USA 31785 OCXO 131-45
PAGE OF TOTAL DWG. NO. REV.
3 3 114-849 -

No Preview Available !

P/N:
MOD:
FREQ.:
S/N:
DATE:
FSC: 31785
PIN CONNECTIONS
PIN FUNCTION
1 VCO INPUT
2 REFERENCE VOLTAGE
3 +VDC
4 R. F. OUTPUT
5 0 VOLTS & CASE
.75
MAX.
.020
.030 DIA. PIN
(5 PLACES)
METAL STANDOFF
(4 PLACES)
.130
.100
1.41 MAX.
1.000
CENT.
3
CL 2
4
15
1.01
MAX.
.700
CENT.
NUMBERS FOR REFERENCE ONLY
(NOT STAMPED ON UNIT)
NOTE: USE 125-501 WHENEVER POSSIBLE.
OSCILLATORS
NAME: OUTLINE DRAWING
(TCXO 141 & OCXO 131 SERIES)
B REDRAWN - NEW FORM, REVISED LABEL, ADDED NOTE.
LET REVISION
FORM NO. 120-081D
CHARLOTTESVILLE, VIRGINIA
CODE I.D. NO. SCALE: 1:1
DATE: 08-24-98
31785 DWN. BY: PAD APPR'D. BY: DAG
LRB DAG 04-24-00
BY APP DATE
TOLERANCES
UNLESS OTHERWISE SPECIFIED:
ANGLES: ±1 DEGREE
FRACTIONS: ±1/32 INCH
DECIMALS: .XX ±.015, .XXX ±.010
MAT'L: COLD ROLLED STEEL
FINISH: BRIGHT NICKEL
MARK: LABEL