75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF0209
1
VFAC3
Surface Mount Clock Oscillator
ACMOS / LSTTL Compatible
Parameter Symbol Condition Min Typ Max Unit Note
Input Break
Down Voltage Vcc -0.5 7.0 V
Storage Temp. Ts -55 +125 °C
Frequency
Range F
25
25
25
165
200
125
MHz
5V
3.3V, 2.5V,
1.8V
Frequency
Stability ∆F/F
Overall conditions including:
calibration, temp., aging 10
yrs, shock, vibration
±20 ±100 ppm
See “How to
Order” table
Input Voltage Vcc
4.75
3.15
2.38
1.71
5.00
3.30
2.50
1.80
5.25
3.45
2.63
1.89
V See “How to
Order” table
Input Current Icc F= 100MHz 15pF load 70 mA
Load 10 LSTTL gates or 30pF Typ, 50pF Max.
Duty Cycle @1.4V
@50% Vcc
40
40
50
50
60
60 % 5% and 2.5%
options available
Rise / Fall Time Tr/Tf 0.4V to 2.4V 20% to 80% 1.5 ns
Logic “1” Level Voh Max Load 0.9Vcc V
Logic “0” Level Vol Max Load 0.1Vcc V
Start-up Time Ts 15 ms
Phase Jitter 1σ 1 ps fj>1KHz
Tristate
Function Input HIGH (>0.8Vcc) or floating: Active; Input LOW (0.5V): Infinite Impedance
Enable/ Disable
Time 100 ns
Features
• ACMOS – TTL Compatible
• Very Low Phase Jitter
• Wide Frequency Range
• Miniature Ceramic Package
• EMI Shielded
• Tight Duty Cycle Available
• Wide Temperature Range Available
• 5.0V, 3.3V, 2.5V, and 1.8V Available
• Tristate control standard
RoHS Status
Electrical Specifications
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevF0209
2
VFAC3
Surface Mount Clock Oscillator
ACMOS / LSTTL Compatible
.
VFAC3 FREQ.
Parameter Condition
Operating Temperature Range 0°C to +70°C or -40°C to +85°C available
Mechanical Shock Per MIL-STD-202, Method 213, Cond. E
Thermal Shock Per MIL-STD-883, Method 1011, Cond. A
Vibration Per MIL-STD-883, Method 2007, Cond. A
Soldering Conditions 260°C for 10s Max., or 230°C for 90s
Hermetic Seal Leak rate less than 5 x 10-8 atm.cc/s of helium
Pin # Connection
Pin 1 Tristate Control
Pin 2 Ground
Pin 3 Output
Pin 4 Vcc
Environmental and Mechanical Conditions
How to Order
Frequency Stability
Code Specification
S ±20 ppm
A ±25 ppm
B ±50 ppm
±100 ppm
Duty Cycle
Code Specification
HH ±2.5%
H ±5%
±10%
Operating Temp. Range
Code Specification
0°C to 70°C
1 -40°C to +85°C
Input Voltage
Code Specification
J1.8V
C2.5V
L3.3V
5.0V
