X O
VF5
VF5
VF5 Series Miniature Ceramic
SMD Tristate Oscillator
HCMOS/TTL Compatible
F E AT U R E S
Absolute
Max. Ratings
Parameter
Input Break
Down Voltage
Storage Temp.
Frequency
Range
Frequency
Stability
Symb
Vcc
Ts
F
∆F/F
Vcc
Icc
Condition
Min
–0.5
–55
1.8
Typ
Max
7.0
+125
170
100
Unit
V
°C
MHz
ppm
V
mA
Note
•
•
•
Miniature Ceramic Package
Wide Frequency Range
Industrial Temperature Available
Overall
–100
4.75
5.00
25
45
65
1
0.295"
(7,49mm)
Input Voltage
Input Current
5.25
15pF load
Electrical
0.197"
(5,00mm)
to 25MHz
to 50MHz
to 80MHz
Load
Duty Cycle
Rise/Fall Time
Logic “1” Level
Tr/Tf
Voh
Vol
10-TTL gates or 15pF typical (50pF max.)
@50%Vcc
10% to 90%
Loaded, overall
Loaded, overall
.9Vcc
.1Vcc
45
50
5
55
10
%
ns
V
V
0.079"
Logic “0” Level
Tristate Function
Input HIGH (>2.5V) or floating: ACTIVE
Input LOW (<0.5V): INFINITE IMPEDANCE
Ts
3
10
100
ms
ns
#1
#2
0.055"
(1,39mm)
Start–up Time
Enable/
Disable Time
0.102"
(2,59mm)
Environmental
and Mechanical
Operating
Temperature Range
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
–10°C to +70°C (–40°C to +85°C available)
Per MIL–STD–202, Method 213, Cond. E
Per MIL–STD–883, Method 1011, Cond. A
Per MIL–STD–883, Method 2007, Cond. A
260°C, for 10s, Max; 230°C, for 90s, Max.
Leak rate less than 5 x 10
–8
atm.cc/s of helium
Pin #1–Tristate Control
Pin #3–Output
Pin #2–Case, GND
Pin #4–Vcc
#4
0.200"
(5,07mm)
#3
All dimensions are typical unless otherwise specified.
Creating a Part Number
VF5
FREQUENCY STABILITY
Code
A
B
C
FREQ.
OPERATIONAL TEMP. RANGE
Electrical
Connections
Pin Out
Specification
±25
±50
±100
±500
ppm
ppm
ppm
ppm
Code
1
Specification
0°C to +70°C
-40°C to +85°C*
Notes:
1. ±50ppm and ±25ppm stability available up to 50MHz for –10°C to 70°C
operating temperature range.
2. For ±50ppm stability option add “B” to the part number, for ±25ppm add “A”.
3. For industrial temperature range option (–40°C to 85°C) add “–1” to the part number.
All specifications are subject to change without notice.
SYMMETRY
Code
H
Specification
±5.0%
±10.0%
Example: VF5SH-1-50.0MHz: Frequency Stability
±20ppm,
Symmetry
±5%,
Operating Temperature -40°C to +85°C,
Frequency 50MHz.
75 South Street, Hopkinton, MA 01748
800-982-5737
508-435-6831
Fax: 508-435-5289 www.valpeyfisher.com
75
ADI参考电路