VFTCM Series
OCXO
Features
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•
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•
•
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SC-cut crystal
Through Hole (VFTCM) or SMD
(VFTCMS)
-9
High Stability (up to ± 5x10 )
-10
-8
Low Aging (5x10 /day, 5x10 /year)
Low Phase Noise (-160 dBc/Hz, TYP,
floor)
Sine Wave or HCMOS/TTL output
4.8 MHz to 180 MHz Frequencies
Available
Applications
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•
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Telecommunication
Systems
Data Communications
GPS
Instrumentation
SMD Reflow Profile
250
Temperature, °C
200
150
100
50
0
0
50
100
150
200
Time, s
Vcc
16
7
OUTPUT
DUT
1
8,9
10
10K
Rload
GND
1
75 South Street, Hopkinton, MA 01748
•
800-982-5737
•
508-435-6831
•
FAX 508 435-5289
•
www.valpeyfisher.com
VFTCM Series
OCXO
Specifications:
Parameter
Symb
Absolute Maximum Ratings
Input Break
Vcc
Down Voltage
Storage temper.
Ts
Control Voltage
Vc
Electrical
Frequency
F
Frequency stability
?F/F
Aging
Allan Variance
SSB Phase Noise
Condition
Min
-0.5
-40
-1
4.8
vs. Temp.
vs. Supply
per day
per year
.1s to 10s
10 Hz
100 Hz
10 KHz
After 30 minutes
worst direction
10.000
±20
1
5E-10
1E-7
1E-11
-120
-150
-160
Typ
Max
13.0
85
9
180
5
Unit
V
°C
V
All parameters for 10 MHz
MHz
ppb
ppb/V
Note
See chart below
after 30 days
5E-8 available
dBc/Hz
At Higher Freq.
Deteriorates by
20Log N dB
4.75
5.0
3.3V, 12V±5% optional
steady state, 25°C
0.8
steady state, -30°C
1.5
start-up @ -30°C
2.5
Load
10KOhm//15pF (HCMOS/TTL), 50 Ohm (Sinewave)
Warm-up time
?
to 0.1ppm accuracy
2
3
minutes
Output Waveform
3.3V HCMOS/TTL compatible or Sinewave (>+7dBm)
-25dB Harmonics at sine
Control voltage
Vc
0
4.0
V
To 2.8V at Vcc=3.3V
Pull range
from nominal F
±0.5
±1
ppm
At 10 MHz
Deviation slope
Monotonic, posit
0.4
ppm/V
Setability
Vc0
@25°C, Fnom.
1.0
2.0
3.0
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
230°C for 30s Max SMD profile
Electrical Connections
Pin Out
Pin #1- Vc; Pin #7- Vref; Pin #8, Pin #9 –GND ; Pin#10 – Output; Pin #16 -Vcc
Retrace
G-sensitivity
Input Voltage
Power consumption
Vcc
P
±20
±1.0
5.25
1
ppb
ppb/G
V
W
Create a Part Number
VFTCM (S)
FREQUENCY, MHz
Output
Temperature Range
Code
A
B
C
D
E
F
Specification
0°C to 50°C
-10°C to 60°C
0°C to 70°C
-20°C to 70°C
-30°C to 70°C
-40°C to 80°C
Temperature Stability
Aging
Code
17
58
28
18
59
YZ
Specification
1x10
-7
5x10
-8
2x10
-8
1x10
-8
5x10
-9
Yx10
-Z
Code
L
S
P
Specification
1x10
-9
/Day
5x10
-10
/Day
2x10
-10
/Day
Code
T
S
Specification
TTL
Sinewave
Supply Voltage
Code
5
2
3
Specification
5V ± 5%
12V ± 5%
3.3V ± 5%
Rev 1/06
2
75 South Street, Hopkinton, MA 01748
•
800-982-5737
•
508-435-6831
•
FAX 508 435-5289
•
www.valpeyfisher.com
Not all combinations are
available. Consult Factory.
Analog electronics
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