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參數(shù)資料
| 型號： | VFT8SD27S5FREQ |
| 廠商： | VALPEY FISHER CORP |
| 元件分類： | OCXO, clock |
| 英文描述： | OCXO, CLOCK, 4.8 MHz - 50 MHz, HCMOS/TTL OUTPUT |
| 封裝： | DIL-8 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 75K |
| 代理商： | VFT8SD27S5FREQ |
Specifications:
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Absolute Maximum Ratings
Input Break
Down Voltage
Vcc
-0.5
13.0
V
Storage temper.
Ts
-40
85
°C
Control Voltage
Vc
-1
9
V
Electrical
Frequency
F
4.8
10.000
50
MHz
vs. Temp.
±100
ppb
See chart below
vs. Supply
1
5
ppb/V
Frequency stability
F/F
Calibration
±0.5
ppm
No VCXO
Aging
per day
per year
1E-9
1E-7
after 30 days
Allan Variance
.1s to 10s
1E-11
SSB Phase Noise
10 Hz
100 Hz
10 KHz
-120
-145
-160
dBc/Hz
Deteriorates by
20LogN at higher
Frequencies
Retrace
After 30 minutes
±20
ppb
G-sensitivity
worst direction
±1.0
ppb/G
All
parameters
for
10
MHz
Input Voltage
Vcc
4.75
5.0
5.25
V
3.3V±5% optional
Input Current
Icc
steady state, 25°C
steady state, -30°C
start-up current
25/35
70/120
130/150
35/40
mA
5V/3.3V supply
Load
10KOhm//15pF
Warm-up time
τ
to 0.1ppm accuracy
35
s
Output Waveform
HCMOS/TTL compatible
* Control voltage
Vc
0
4.0
2.8
V
For 3.3V supply
* Pull range
from nominal F
±0.3
±0.5
ppm
* Deviation slope
Monotonic, posit
0.15
ppm/V
* Setability
Vc0
@25°C, Fnom.
1.0
.8
2.0
1.4
3.0
2.0
V
Environmental and Mechanical
Operating temp. range
-30°C to 70°C Standard, Other options – see chart below
Mechanical Shock
Per MIL-STD-202, 30G, 11ms
Vibration
Per MIL-STD-202, 5G to 2000 Hz
Soldering Conditions
Leads Temperature 260°C, for 10s, Max, 230°C for 30s Max SMD profile
Hermetic Seal
Leak rate less than 1x10-8 atm.ccm/s of helium
Electrical Connections
Pin Out
Pin 1- Vc ; Pin 2-Vref; Pin 3- N/C; Pin 4- Case, GND; Pin5 – Output; Pin 8- Vcc
Creating a Part Number
VFT8S
FREQUENCY, MHz
Temperature Range
Code
Specification
A
0°C to 50°C
B
-10°C to 60°C
C
0°C to 70°C
D
-20°C to 70°C
E
-30°C to 70°C
F
-40°C to 85°C
Temperature Stability
Code
Specification
57
5x10
-7
27
2.8x10
-7
17
1x10
-7
58
5x10
-8
28
2x10
-8
YZ
Yx10
-Z
Aging
Code
Specification
L
1x10
-9/Day
S
5x10
-10/Day
Supply Voltage
Code
Specification
5
5V ± 5%
3
3.3V ± 5%
Not all combinations are available.
Consult Factory.
* - optional
“V” for
VCXO
S for SMD
Rev 11/05
VFT8S Series
Micro-miniature, Evacuated
75 South Street, Hopkinton, MA 01748
800-982-5737 508-435-6831 FAX 508 435-5289 www.valpeyfisher.com
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