Data Sheet 0635H
CRYSTAL OSCILLATORS
OD-X8JXXXXX Series
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Absolute Maximum Ratings
Vcc
-0.5
5.5
V
Input Break
Down Voltage
Ts
-40
-1
85
7
Storage temper.
°C
V
Vc
Control Voltage
Electrical
F
∆F/F
8
10.000
±50
160
2
MHz
ppb
ppb/V
1*
Frequency
Frequency stability
vs. Temp.
vs. Supply
per day
per year
.1s to 10s
1Hz
10 Hz
100 Hz
1 KHz
10 KHz
See chart below
1
5E-10
1E-7
1E-11
after 30 days
5E-8 available2*
Aging
Allan Variance
SSB Phase Noise
-90
dBc/Hz
3*
-120
-150
-153
-160
After 30 minutes
worst direction
±10
±1.0
5.25
3.45
0.15
ppb
ppb/G
V
Retrace
G-sensitivity
Input Voltage
Vcc
P
4.75
3.15
5.0
3.3
0.125
0.35
0.5
See chart below to specify
steady state, 25°C
steady state, -30°C
start-up @ -30°C
Subharmonics
Spurious
W
Standard Operating
Temperature, for Op
Temp. 85 °C ad 20%
At Higher Frequencies
Power consumption
Spectral Purity
0.7
-45
-80
-30
-50
dBc
Harmonics/Sine
-35
10KOhm//15pF (HCMOS/TTL), 50 Ohm (Sinewave)
Load
to 0.1ppm accuracy
30
45
s
Warm-up time
Output Waveform
Control voltage
Pull range
Deviation slope
Setability
τ
3.3V HCMOS/TTL compatible or Sinewave (+7± 3) dBm
Vc
0
±0.5
Vref
V
ppm
ppm/V
V
from nominal F
Monotonic, posit
@25°C, Fnom.
±1
0.4
Vc0
Vref/2-1 Vref/2 Vref/2+1
Environmental and Mechanical
Operating temp. range
Mechanical Shock
Vibration
-30°C to 70°C Standard, Other options – see chart below
Per MIL-STD-202, 30G, 11ms
Per MIL-STD-202, 5G to 2000 Hz
260°C for 10s Max leads only
Soldering Conditions
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.
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
NEL [ NEL FREQUENCY CONTROLS,INC ]
