75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevE0511
1
VFTX300
TCXO with Voltage Control Option
3.2x2.5mm Surface Mount
,
Cli
pp
ed Sine
Features
Frequency range of 10MHz to 40MHz
Very Low Phase Noise
Excellent Frequency Stability
Clipped Sine Wave Output
Low Aging, Vacuum sealed Crystal
Available as a VCXO
Electrical S
p
ecifications
Parameter Symbol Condition Min Typ Max Unit Note
Frequency
Range F 10 40 MHz
Frequency
Stability ∆F/F
Vs. Operating
Temperature
ppm
See “How to
Order”
Vs. Supply Voltage
Vs. Aging / Year
0.2
1
ppm/V
ppm
Operating
Temperature
Range T -40 +85 C Order Code G
See “How to
Order”
Output Clipped Sine 0.8Vp-p minimum
Load 10KΩ//10pF
Supply
Voltage Vcc
2.85
2.35
3.0
2.5
3.15
2.625 V Order Code F
Order Code G
Supply
Current Icc 2.0 mA
Voltage
Control Vc 0.5 1.5 2.5 V
Input
Impedance 500 KΩ
Pullability ppm
See “How to
Order”
SSB Phase
Noise @100 Hz
@ 1 KHz
@10 KHz
-115
-135
-148
dBc/Hz Fo=13MHz
Start up 2 10 ms
Applications
Optical Networking,
SONET/SDH
10 Gbit Ethernet
Frequency Translation
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevE0511
2
VFTX300
TCXO with Voltage Control Option
3.2x2.5mm Surface Mount
,
Cli
pp
ed Sine
Parameter Symbol Condition Min Typ Max Unit Note
Supply Break
Down Voltage Vcc -0.6 6.0 V
Storage
Temperature Ts -55 +125 C
Control
Voltage Vc -0.6 Vcc +0.6 V
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 90s max
Hermetic Seal Leak rate less than 5x10-
8
atm.cc/s of helium (crystal only)
PIN
#1 Vc or GND
#2 GND
#3 Output
#4 Vcc
Absolute Maximum Ratings
Environmental and Mechanical
SMD Reflow Profile
0
50
100
150
200
250
0 20 40 60 80 100 120 140 160
Time, s
Temperature, °C
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevE0511
3
VFTX300
TCXO with Voltage Control Option
3.2x2.5mm Surface Mount
,
Cli
pp
ed Sine
Vcc
Code Specification
F 3.0V
G 2.5V
How to Order
V
FTX300
Stability
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
T TCXO
A ±5ppm
B ±8ppm
C ±10ppm
D ±12ppm
FREQUENCY
,
MHz
Freq. Vs Temp Availability
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 ♦ ♦ ♦ ♦ ♦
-30°C to +85°C o ♦ ♦ ♦ ♦
-40°C to +85°C o ♦ ♦ ♦
o case by case
♦ available
