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| 型號： | VF640CL-G-2.0MHZ |
| 英文描述： | Crystal Oscillator |
| 中文描述： | 晶體振蕩器 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大小： | 25K |
| 代理商： | VF640CL-G-2.0MHZ |
X O
VF640J / 640G
75 South Street, Hopkinton, MA 01748 800-982-5737 508-435-6831 Fax: 508-435-5289 www.valpeyfisher.com
66
Creating a Part Number
VF640
FREQUENCY STABILITY
Code
S
A
B
Specification
±
20
ppm
±
25
ppm
±
50
ppm
±
100
ppm (std.)
±
500
ppm
C
DUTY CYCLE
Code
HH
H
Specification
±
2.5%
±
5%
±
10%
INPUT VOLTAGE
Code
L
Specification
3.3 Volt
5.0 Volt (std.)
(std.)
OPERATIONAL TEMP. RANGE
Code
1
Specification
0
°
C to +70
°
C (std.)
-40
°
C to +85
°
C
PIN CONFIGURATION
Code
J
G
Specification
"J" Bend
Gull Wing
FREQ.
Example: VF640BHH-1J-19.44MHz: Frequency Stability
±
25ppm,
Duty Cycle
±
2.5%, Input Voltage 3.3 Volt
±
5%, Operating
Temperature -40
°
C to +85
°
C, Frequency 19.44MHz.
VF640J
19.44MHZ
BO1H
0.(0,254)
0.(0,254)
±
0,05mm)
(0,0.010"
±
±
0,05mm)
(0,0.010"
±
±
(7,0.310"
±
0.010"
±
(7,0.310"
±
0.010"
93
°
±
(1,0.053"
±
0.005"
±
(1,0.050"
±
0.005"
VF640J
VF640G
0.295"
(7,49
±
0,20.01"
(0.335"
±
0,0.008"
#6
#5
(4,78mm)
(0.068"
(3,25mm)
0.07"
(1,78
±
0,0.010"
(0.200"
±
0,0.005"
(0.100"
±
0,0.005"
(0.046"
±
0,0.005"
(0.018"
±
00.002"
#4
#1
#2
#3
V F640J, V F640G Series
HCMOS/TTL Compatible Clock Oscillator
Miniature 6 Pin Ceramic Package
F E A T U R E S
Very Low Phase Jitter
Tristate Control Standard
Tight Duty Cycle Available
Parameter
Symb
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
2.0
130
MHz
Frequency
Stability
F/F
Overall conditions
including:
calibration, temp.,
aging 10 yrs,
shock, vibration
±100
ppm
1
Input Voltage
Vcc
4.75
3.15
5.00
3.30
5.25
3.45
V
Std.
LV Opt.
Input Current
Icc
15pF load
25
mA
2
Load
Duty Cycle
@1.4V
40
50
60
%
3
Rise/Fall Time
Tr/Tf
10% to 90%
0.4V to 2.4V
4.0
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
2
10
ms
Phase Jitter
1
σ
1
ps
fj>1KHz
Tristate
Function
Enable/
Disable Time
Te/Td
100
ns
Operating
Temperature Range
0°C to +70°C (–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, Max
Hermetic Seal
Leak rate less than 5 x 10
-8
atm.cc/s of helium
Pin Out
Pin #1-N/C
Pin #3-Ground, Case
Pin #5-N/C
Pin #2-Tristate Control
Pin #4-Output
Pin #6-Vcc
10 TTL gates or 50pF Max
A
M
E
E
a
E
C
Notes:
1. Standard frequency stability, others available.
2. Current is load and frequency dependent.
3. Standard symmetry, tighter available.
All specifications are subject to change without notice.
Input HIGH (>2.5V) or floating:
Input LOW (<0.5V):
ACTIVE
INFINITE IMPEDANCE
All dimensions are typical unless otherwise specified.
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