75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF0709
1
VFTX301
TCXO with Voltage Control Option
5x3.2mm Surface Mount
,
Cli
pp
ed Sine Wave
Features
Frequency range of 10MHz to 40MHz
Excellent Frequency Stability
Low Phase noise
Wide range of pullability options
Low power consumption
Parameter Symbol Condition Min Typ Max Unit Note
Frequency
Range F
10
10 26
40 MHz 5V Vcc
3V Vcc
Frequency
Stability ∆F/F
Vs. Operating Temperature
ref to +25°C
A: 0C to +50C
G: -40C to +85C
±0.5
±2.5
ppm
Select max.
stability. See “How
to Order”
Vs. Supply Voltage (+/-10%)
Vs. Aging / Year
0.2
1 ppm
ppm
Operating
Temperature
Range T
0
-40
+50
+85
C
Order Code A
Order Code G
See “How to
Order”
Output 0.8 Vp-p
External 150 pF
DC blocking
capacitor required
Load 10KΩ//10pF
Supply
Voltage Vcc
4.75
2.8
5.00
3.0
5.25
3.3 V Order Code D
Order Code F
Voltage
Control Vc 0.5
0.5 2.5
2.5 V 5.0V Vcc
3.0V Vcc
Input
Impedance 500K Ω
Pullability VCTCXO Version ±5 ±12 ppm
See “How to
Order”
Deviation
slope Monotonic positive
Initial
Tolerance TCXO Version ±2.0 ppm
@ +25°C,1hour
after reflow
Applications
Portable equipment
Telecommunications
Data acquisition
RoHS Status
Electrical Specifications
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF0709
2
VFTX301
TCXO with Voltage Control Option
5x3.2mm Surface Mount
,
Cli
pp
ed Sine Wave
Parameter Symbol Condition Min Typ Max Unit Note
Supply Break
Down Voltage Vcc -0.5 6.0 V
Storage
Temperature Ts -55 +125 C
Parameter Symbol Condition Min Typ Max Unit Note
Linearity -10 +10 %
Modulation
BW 3 KHz 3dB BW
SSB Phase
Noise @100 Hz
@ 1 KHz
@10 KHz
-115
-135
-148
dBc/Hz Fo=13MHz
Start up 2 ms
Parameter Specification
Mechanical Shock Per MIL-STD-202, Method 213, Condition E
Thermal Shock Per MIL-STD-883, Method 1011, Condition A
Vibration Per MIL-STD-883, Method 2007, Condition A
Soldering Conditions 230C for 60s max
Hermetic Seal Leak rate less than 5x10-
8
atm.cc/s of helium
Absolute Maximum Ratings
Environmental and Mechanical
Electrical Specifications
OIO1234
YWWM
Part I.D. PAD Function
1 Vc (VCTCXO) or
N/C (TCXO)
2 GND
3 Output
4 Vcc
NOTE: External 150 pF series dc
blocking capacitor is required at
output (pad 3)
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF0709
3
VFTX301
TCXO with Voltage Control Option
5x3.2mm Surface Mount
,
Cli
pp
ed Sine Wave
*Freq. Stability Vs Temp Availability (for 10MHz – 26MHz frequency models)
Temp (°C) L: 0.5ppm K: 1.0ppm J: 1.5ppm H: 2.0ppm G: 2.5ppm
0°C to +50°C ♦ ♦ ♦ ♦ ♦
-10°C to +60°C ♦ ♦ ♦ ♦ ♦
-20°C to +70°C o ♦ ♦ ♦ ♦
-30°C to +85°C x o ♦ ♦ ♦
-40°C to +85°C x o ♦ ♦ ♦
♦: Available
o: Availability dependent on frequency - contact factory
x: Not available
*Note: For 26.000MHz to 40.000MHz frequencies consult factory for availability
How to Order
Vcc
Code Specification
F 3.0V
D 5.0V
V
FTX301 FRE
Q
UENCY
,
MHz
Stability vs. Temp
Code Specification
L ±0.5ppm
K ±1.0ppm
J ±1.5ppm
H ±2.0ppm
G ±2.5ppm
Temperature Range
Code Specification
A 0°C to 50°C
C -10°C to +60°C
D -20°C to 70°C
F -30°C to +85°C
G -40°C to 85°C
Pullability
Code Specification Type
T N/A TCXO
A ±5ppm VCTCXO
B ±8ppm VCTCXO
C ±10ppm VCTCXO
D ±12ppm VCTCXO
