OCXO-127-19.pdf 데이터시트 (총 4 페이지) - 파일 다운로드 OCXO-127-19 데이타시트 다운로드

No Preview Available !

OCXO 127-19
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
-
A Removed the > sign on 1.3. Removed note on
2.3.b. and reversed order of 2.3.b. and 2.3.a
B 6.6.3. Outline drawing 125-489 was 125-353
REQ.
BY
TST
TST
TST
DWN.
BY
TST
JAC
DAG
DATE
07-19-95
12-28-95
08-12-99
ISOTEMP RESEARCH INC. CODE ID. PART NO.
CHARLOTTESVILLE, VA.
USA 31785 OCXO 127-19
PAGE OF TOTAL DWG. NO. REV.
1 3 114-660 B

No Preview Available !

OCXO 127-19
1. OUTPUT
1.1. Frequency
1.2. Waveform
1.3. Level
1.4. Load
1.5. Harmonics
1.6. Spurious
3.000 MHz
(At time of shipment set to ±1X10-8
@ +25°C) (Cpk > 1.5)
( <±3.3x10-8 when tested by the
customer, within 30 days of the
date code, after on power for 30
minutes.)
Sine wave
+15.5 dBm ±2.5 dB (Cpk > 1.5)
50 ±5%
< -20 dBc
< -80 dBc
2. FREQUENCY STABILITY
2.1. Total
< ±2x10-7/year for Ambient, Aging,
Voltage, and Load.
2.2. Ambient
< ±2.5x10-8 from -30°C to +70°C
(referenced to +25°C)
2.3. Aging
a. At time of shipment
< ±6.5x10-10/day
b. After storage of up to 6 months
i. Daily
< ±7.5x10-10 after 120 hours
ii. Yearly
< ±5x10-8
iii. 10 years
< ±3x10-7
2.4. Voltage
a. Oscillator
< ±1x10-9/±4% change
b. Oven
< ±3x10-9/voltage range
2.5. Load
< ±1x10-9/±5% change
2.6. Phase noise
< -140 dBc @ 60 kHz
2.7. Retrace
< ±1x10-7 after 5 minutes
< ±3.3x10-8 after 30 minutes
(at +25°C, referenced to turn-off
frequency after specified aging is
met, and following a maximum off
time of 30 days.)
ISOTEMP RESEARCH INC. CODE ID. PART NO.
CHARLOTTESVILLE, VA.
USA 31785 OCXO 127-19
PAGE OF TOTAL DWG. NO. REV.
2 3 114-660 B

No Preview Available !

OCXO 127-19
2.8. Shock, Vibration, & Retrace < ±3.3x10-8 from 3 MHz
The retrace is included in the SHOCK and VIBRATION. Procedure
steps: Set units to frequency as they would be done in production
enviroment, Remove units from power for a minimum of 6 hours,
Warm-up units for 30 minutes record frequency, shock (off power),
warm-up units for 30 minutes and record frequency, perform
vibration (off power), warm-up units for 30 minutes and record
frequency. The recorded frequencies must be within the specified
value from 3 MHz. The shock and vibration levels are:
SHOCK:
1/2 SINE pulse 50 g’s for 6 ms three directions: ±X, ±Y, ±Z
six times (18 times total)
VIBRATION:
10 - 60 Hz 0.06" double amplitude sine or 15 g’s whichever
is less. 1/2 hour per plane ±X, ±Y, ±Z.
3. MECHANICAL FREQUENCY ADJUSTMENT
3.1. Range
3.2. Resolution
3.3. Control
> ±1 PPM
< ±1x10-8
Multi-turn trimmer
4. INPUT POWER
4.1. Oscillator
a. Voltage
b. Current
4.2. Oven
a. Voltage
b. Current
+15 VDC ±4%
< 50 mA
+27 VDC +3 VDC, -6 VDC
< 400 mA
5. ENVIRONMENTAL
5.1. Humidity
5.2. Storage temperature
5.3. Vibration (non-operating)
5.4. Shock (non-operating)
MIL-STD-202F, Method 103B, Test
Condition A, except at +50°C
(95% R.H. @ +50°C,
non-condensing, 240 hours)
-40°C to +85°C
See section 2.
See section 2.
6. MECHANICAL
6.1. Applicable series
6.2. Model number
6.3. Outline drawing
OCXO 127 series
OCXO 127-19
125-489
ISOTEMP RESEARCH INC. CODE ID. PART NO.
CHARLOTTESVILLE, VA.
USA 31785 OCXO 127-19
PAGE OF TOTAL DWG. NO. REV.
3 3 114-660 B

No Preview Available !

P/N:
MODEL:
FREQ.:
S/N:
DATE:
CRYSTAL OSCILLATOR
FSC:031785
PIN CONNECTIONS
PIN
FUNCTION
1 R. F. OUTPUT
2 0 VOLTS & CASE
3 +VDC OSCILLATOR
4 0 VOLTS & CASE
5 +VDC OVEN
TRIMMER
ACCESS
1.75
MAX.
1.12
.065 ñ.005
.250
1
2
2.300 CENT.
1.80 CENT.
.25
.20
.040 DIA. PINS
(5 PLACES)
CL
5
2.40
MAX.
3
1.800
CENT.
4
2.80 MAX.
OSCILLATORS
NAME: OUTLINE DRAWING
(OCXO 127 SERIES)
LET REVISION
NUMBERS FOR REFERENCE ONLY
(NOT STAMPED ON UNIT)
FORM NO. 120-081C
CHARLOTTESVILLE, VIRGINIA
CODE I.D. NO. SCALE:.75:1 DATE: 06-03-96
31785 DWN. BY: TAD APPR'D. BY: DAG
BY APP DATE
TOLERANCES
UNLESS OTHERWISE SPECIFIED:
ANGLES: ñ1 DEGREE
FRACTIONS: ñ1/32 INCH
DECIMALS: .XX ñ.015, .XXX ñ.010
MAT'L: COLD ROLLED STEEL
FINISH: BRIGHT NICKEL
MARK: LABEL