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OD-08JS28CL Datasheet(PDF) 2 Page - Nel Frequency Controls,inc

Part # OD-08JS28CL
Description  Precision, Low Power Consumption, Fast Warm-up SC-cut OCXO in 20x20 mm Through Hole Package
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Manufacturer  NEL [Nel Frequency Controls,inc]
Direct Link  http://www.nelfc.com
Logo NEL - Nel Frequency Controls,inc

OD-08JS28CL Datasheet(HTML) 2 Page - Nel Frequency Controls,inc

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CRYSTAL OSCILLATORS
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email: nelsales@nelfc.com
www.nelfc.com
Data Sheet 0635H
OD-X8JXXXXX Series
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Absolute Maximum Ratings
Input Break
Down Voltage
Vcc
-0.5
5.5
V
Storage temper.
Ts
-40
85
°C
Control Voltage
Vc
-1
7
V
Electrical
Frequency
F
8
10.000
160
MHz
1*
vs. Temp.
±50
ppb
See chart below
Frequency stability
∆F/F
vs. Supply
1
2
ppb/V
Aging
per day
per year
5E-10
1E-7
after 30 days
5E-8 available2*
Allan Variance
.1s to 10s
1E-11
SSB Phase Noise
1Hz
10 Hz
100 Hz
1 KHz
10 KHz
-90
-120
-150
-153
-160
dBc/Hz
3*
Retrace
After 30 minutes
±10
ppb
G-sensitivity
worst direction
±1.0
ppb/G
Input Voltage
Vcc
4.75
3.15
5.0
3.3
5.25
3.45
V
See chart below to specify
Power consumption
P
steady state, 25°C
steady state, -30°C
start-up @ -30°C
0.125
0.35
0.5
0.15
0.7
W
Standard Operating
Temperature, for Op
Temp. 85 °C ad 20%
Spectral Purity
Subharmonics
Spurious
Harmonics/Sine
-50
-35
-45
-80
-30
dBc
At Higher Frequencies
Load
10KOhm//15pF (HCMOS/TTL), 50 Ohm (Sinewave)
Warm-up time
τ
to 0.1ppm accuracy
30
45
s
Output Waveform
3.3V HCMOS/TTL compatible or Sinewave (+7± 3) dBm
Control voltage
Vc
0
Vref
V
Pull range
from nominal F
±0.5
±1
ppm
Deviation slope
Monotonic, posit
0.4
ppm/V
Setability
Vc0
@25°C, Fnom.
Vref/2-1 Vref/2 Vref/2+1
V
Environmental and Mechanical
Operating temp. range
-30°C to 70°C Standard, Other options – see chart below
Mechanical Shock
Per MIL-STD-202, 30G, 11ms
Vibration
Per MIL-STD-202, 5G to 2000 Hz
Soldering Conditions
260°C for 10s Max leads only
Electrical Connections
Pin Out
Pin #1-Vc ; Pin#2 – Vref; Pin #3 – Vcc; Pin #4- Output ; Pin #5- GND;
Notes:
1* Higher frequencies can be achieved either by using higher frequency crystals or by low noise analog harmonic
multiplication. Both methods have advantages and drawbacks. If lowest possible phase noise on the noise floor is most important
– high frequency crystal will be used. If phase noise close to the carrier and aging are more important – multiplication will be
used. Please consult factory for your specific requirement.
2* Aging rate is usually proportional to the operating frequency, unless higher frequency is achieved by multiplication.
Keep it in mind while specifying aging.
3* Phase noise deteriorates with frequencies going higher. If analog multiplication is used to achieve higher frequency
the phase noise roughly follows the formula of additional 20LogN, where N is a multiplication factor across entire frequency
offset range. If higher frequency is achieved by using higher frequency crystal phase noise close to the carrier deteriorates due to
the lower Q of the crystal and is usually worse, compared to multiplied solution. On the noise floor, however it remains more or
less the same. This design usually starts utilizing multiplication techniques in the range of 25 MHz to 35 MHz.


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