75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevJ0511
1
VFTX302
TCXO with Voltage Control Option
5x7mm Surface Mount, Clipped Sine Wave/CMOS
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
26 40
40 MHz 5V
3V
Frequency
Stability ∆F/F
Vs. Operating Temperature
ppm
See “How to
Order”
Vs. Supply Voltage
Vs. Supply Voltage
Vs. Aging / Year
0.2
0.3
1
ppm/V
ppm/V
ppm
Clipped Sine
HCMOS
Operating
Temperature
Range T 0
-40 +70
+85 C Order Code B
Order Code G
Output Clipped Sine 0.8Vp-p minimum
Load 10KΩ//10pF
Supply
Voltage Vcc External 150pF decoupling
capacitor recommended
4.75
3.15
5.00
3.30
5.25
3.45 V Order Code D
Order Code E
Voltage
Control Vc 0.5
0.5 4.5
2.5 V
Input
Impedance 500K Ω
Pullability ppm
See Ordering
Information
Deviation
slope Monotonic positive
Linearity -10 +10 %
Modulation
BW 3 KHz 3dB BW
SSB Phase
Noise @100 Hz
@ 1 KHz
@10 KHz
-115
-135
-150
dBc/Hz Fo=13MHz
Start up 2 ms
Applications
Portable equipment
Telecommunications
Data acquisition
RoHS Status
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevJ0511
2
VFTX302
TCXO with Voltage Control Option
5x7mm Surface Mount, Clipped Sine Wave/CMOS
Parameter Symbol Condition Min Typ Max Unit Note
Supply Break
Down Voltage Vcc -0.5 6.0 V
Storage
Temperature Ts -55 +125 C
Control
Voltage Vc -1 9 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 Specification
1 Vc or GND
2 GND
3 Output
4 Vcc
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 • RevJ0511
3
VFTX302
TCXO with Voltage Control Option
5x7mm Surface Mount, Clipped Sine Wave/CMOS
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
Freq. Vs Temp Availability
Temp (°C) L: ±0.5ppm K: ±1.0ppm J: ±1.5ppm H: ±2.0ppm G: ±2.5ppm
A: 0°C to +50°C ♦ ♦ ♦ ♦ ♦
C: -10°C to +60°C ♦ ♦ ♦ ♦ ♦
D: -20°C to +70°C ♦ ♦ ♦ ♦ ♦
F: -30°C to +85°C o ♦ ♦ ♦ ♦
G: -40°C to +85°C o o ♦ ♦ ♦
o case by case
♦ available
Vcc
Code Specification
E 3.3V
D 5.0V
Output
Code Specification
C CMOS
N Clipped Sine
How to Order
V
FTX302 FREQUENCY
,
MHz
