75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevB0613
Specifications are subject to change without notice
1
VFOV650
Oven Controlled Crystal Oscillator
High Stability, DIL-14 package
Parameter Symbol Condition Min Typ Max Unit Note
Frequency
Range 10.0 52.0 MHz
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 ±2.0 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
-135
-160
-163
-163
dBc/Hz
At 20 MHz -
Performance is
dependent on
frequency
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
Features
High stability in small package
Low power consumption - fast warm-up time
Low drift – tight holdover
Very low phase noise
HCMOS/TTL output
10 MHz to 52 MHz frequencies available
Accurate clock with no tuning required
Voltage control function available
RoHS Status
Electrical Specifications
Applications
IEEE 1588 clock
Stratum 3 holdover
Wireless base stations
Timing over packet
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevB0613
Specifications are subject to change without notice
2
VFOV650
Oven Controlled Crystal Oscillator
High Stability, DIL-14 package
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 10kOhms || 15pF
Symmetry 45 55 %
Rise/Fall Time TR/TF 10kOhms || 15pf load 1.2 ns
Control Voltage
Range VC 0.0 3.3 V
For voltage control
option only
Deviation Range From FNOM ±2.0 ppm
For voltage control
option only. Actual value
supplied is dependent
on frequency
Warm-up time To +/-10 ppb of
30 minute frequency 1 min at +25C
Parameter Symbol Condition Min Typ Max Unit Note
Supply
Break Down
Voltage
VCC -0.5 4.0 V
Storage
Temperature TS -50 90 °C
Control
Voltage VC -1 6 V
Parameter Condition
Mechanical Shock Per MIL-STD-202, 30G, 11ms
Sine Vibration MIL-STD-202, 5Gs Peak to 500 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 Conditions
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevB0613
Specifications are subject to change without notice
3
VFOV650
Oven Controlled Crystal Oscillator
High Stability, DIL-14 package
0.025
[0.635]
TYP
Bottom View
0.085 [2.16] DIA.
STANDOFFS (4)
NON-CONDUCTIVE
Pin # Connection
1 N/C (fixed frequency models)
VC (voltage control option
models)
7 GND & Case
8 Output
14 VCC
Outline Drawing
Temperature Stability
Code Specification
R ±1x10-7
T ±5x10-8
U ±2x10-8
V ±1x10-8
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