75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0511
1
VFOV650
Oven Controlled Crystal Oscillator
Hi
g
h Stabilit
y
- Miniature Packa
g
e
Parameter Symbol Condition Min Typ Max Unit Note
Frequency
Range 10.0 52.0 MHz
See Available
Frequency
List
Frequency
Stability ∆F/F
Initial Calibration
(∆F/Fnom) ±300 ±500 ppb
For fixed
tuning option
only
Vs. Operating Temperature
(Ref to +25C Frequency) ±10 ppb
See “How to
Order” Chart
for Available
Options
Vs. Supply Voltage ±1.0 ppb Vcc ∆±5%
Aging ∆F/F
Per day
First year
10 years
±1.0
±0.2
±1.5
ppb
ppm
ppm
After
30
days
Total Free
Run
Accuracy Over all conditions for 10
year life
±2.5 ppm
For fixed
tuning option
only
Operating
Temperature
Range T -40 +85 C
See “How to
Order” Chart
for Available
Options
SSB Phase
Noise L(f)
10 Hz
100 Hz
10 KHz
100 KHz
1 MHz
-110
-140
-160
-168
-170
dBc/Hz
At 20 MHz -
Performance
is dependent
on frequency
Jitter 12KHz to 20 MHz 0.15 ps RMS
Supply
Current Icc
Steady state, 25°C still air
Steady state, -40°C still air
Start-up Current
160
350
500
180
550
mA Vcc=3.30V
RoHS Status
Features
High stability in small package
Low power consumption - fast warm-up time
Low drift – tight holdover
Very low phase noise (-170dBc/Hz typ)
HCMOS/TTL output
10 MHz to 52 MHz frequencies available
Accurate clock with no tuning required
Voltage control function available
Applications
IEEE 1588 clock
Stratum 3 holdover
Wireless base stations
Timing over packet
Electrical Specifications
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0511
2
VFOV650
Oven Controlled Crystal Oscillator
Hi
g
h Stabilit
y
- Miniature Packa
g
e
Electrical Specifications
Parameter Symbol Condition Min Typ Max Unit Note
Supply Voltage Vcc 3.13 3.3 3.46 V
Output
Waveform/Load HCMOS/TTL Compatible
Square Wave 10KOhm||15pF
Symmetry 45 55 %
Rise/Fall Time Tr, Tf 10KOhm // 15pf load 1.2 ns
Control Voltage
Range Vc 0.0 3.3 V
For voltage control
option only
Deviation Range From Fnominal ±2.0 ppm
For voltage control
option only
Warm-up time To +/-10 ppb of
30 minute frequency 1 min at +25C
Parameter Symbol Condition Min Typ Max Unit Note
Supply
Break Do wn
Voltage Vcc -0.5 4.0 V
Storage
Temperature Ts -50 90 °C
Control
Voltage Vc -1 6 V
Parameter Specification
Mechanical Shock Per Mil-Std-202, 30G, 11ms
Sine Vibration Mil-Std-202, 5Gs Peak to 2000 Hz
Random Vibration Mil-Std-202F Method 214 5 Gs RMS 20 to 500Hz
Soldering/Processing Hand/Wave Solder Compatible - Washable Hermetic Enclosure
Seal Fully Hermetic
Moisture Sensitivity Level MSL Level 1
Marking Permanency Mil-Std-202F, Method 215
RoHS Lead Free RoHS 6/6 compliant
Packaging Antistatic Tubes
Absolute Maximum Ratings
Environmental and Mechanical
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0511
3
VFOV650
Oven Controlled Crystal Oscillator
Hi
g
h Stabilit
y
- Miniature Packa
g
e
Standard Available Fre
q
uencies:
Temperature Stability
Code Specification
R ±1x10-7
T ±5x10-8
U ±2x10-8
V ±1x10-8
10.0 MHz, 10.24 MHz, 12.5 MHz, 12.8 MHz, 13.0 MHz, 20.0 MHz,
20.48 MHz, 25.0 MHz, 25.6 MHz, 26.0 MHz, 40.0 MHz, 40.96 MHz,
50.0 MHz, 51.2 MHz, 52.0 MHz
Consult Factory for Additional Available Frequencies.
Available Stability Combinations
Code Specification 0°C to 50°C 0°C to 70°C -10°C to 60°C -20°C to 70°C -40°C to 85°C
R ±1x10-7 × × × × ×
T ±5x10-8 × × × × ×
U ±2x10-8 × × × × ×
V ±1x10-8 × о о о
X
= Available O = Available de
p
endin
g
on Fre
q
uenc
y
–
Consult Factor
y
Temperature Range
Code Specification
A 0°C to 50°C
B 0°C to 70°C
C -10°C to 60°C
D -20°C to 70°C
G -40°C to 85°C
How to Order
VFOV650 FREQUENCY
,
MHz
Tuning
Code Specification
Fixed
V Voltage Control
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0511
4
VFOV650
Oven Controlled Crystal Oscillator
Hi
g
h Stabilit
y
- Miniature Packa
g
e
Pin # Connection
1 N/C (fixed frequency models)
Vc (voltage control option models)
7 GND & Case
8 Output
14 Vcc
Outline Drawing
0.025
[0.635]
TYP
Bottom View