VFT8HA17S5-50.0MHZ [CTS]
Oscillator,;
| 型号： | VFT8HA17S5-50.0MHZ |
| 厂家： | 
CTS |
| 描述： | Oscillator, |
| 文件： | 总2页 (文件大小：169K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VFT8H Series Micro-miniature, Evacuated OCXO
Product Data Sheet
COOL…TO THE TOUCH
Features
• Smallest OCXO available (< 1 cm3 , 2g weight)
• SC-cut crystal
• High Vacuum Sealed Enclosure
• Extremely Low Power Consumption (<100 mW)
• Very Fast Warm-up Time (30s)
-9
• High Stability (up to ± 5x10 over 0°C to 50°C)
-10
-8
• Low Aging (5x10 /day, 5x10 /year)
• Very Low Phase Noise (-160dBc/Hz TYP)
• HCMOS/TTL output
Ø0.500(12,7mm)
• “Gull-Wing” SMD Version Available
• 4.8 MHz to 50 MHz Frequencies Available
• “Half-size”, DIL-8 compatible pinout
0.395 (10,0mm)
0.48 (12,2mm)
0.25 (6,35mm) MIN
Ø0.018 (0,45mm)
0.300 (7,62mm)
0.600 (15,2mm)
Applications
0.100 (2,54mm)
0.300 (7,62mm)
8
1
2
8
1
2
• Telecommunications
• Data Communications
• Battery Powered Systems and Equipment
• GPS
5
4
5
4
0.670 (17,0mm)
SMD Version
Ø0.580(14,3mm)
• Instrumentation
• SARSAT Beacons
Vcc
SMD Reflow Profile
250
200
150
100
50
Vc
8
1
0.1K
OUTPUT
Vref
2
DUT
4
5
0
0
50
100
150
200
10K
Time, s
VF Technologies • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
1
VFT8H Series Micro-miniature, Evacuated OCXO
Specifications:
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Absolute Maximum Ratings
Vcc
-0.5
13.0
V
Input Break
Down Voltage
Storage temper.
Ts
Vc
-40
-1
85
9
°C
V
Control Voltage
Electrical
F
∆F/F
4.8
10.000
±20
50
5
MHz
ppb
ppb/V
Frequency
vs. Temp.
vs. Supply
per day
See chart below
after 30 days
Frequency stability
1
5E-10
1E-7
1E-11
Aging
per year
.1s to 10s
Allan Variance
SSB Phase Noise
10 Hz
-120
-145
-160
dBc/Hz
Deteriorates by
20LogN at higher
Frequencies
100 Hz
10 KHz
After 30 minutes
±20
±1.0
5.25
ppb
ppb/G
V
Retrace
worst direction
G-sensitivity
Input Voltage
Input Current
Vcc
Icc
4.75
5.0
3.3V
5V/3.3V supply
steady state, 25°C
steady state, -30°C
start-up current
25/35
35/50
mA
70/85
150/150
10KOhm//15pF
Load
to 0.1ppm accuracy
35
s
45s at 3.3V supply
2.8 V with 3.3V supply
(1.4 ±.8)V with 3.3V
Warm-up time
Output Waveform
Tristate Control
Control voltage
Pull range
τ
3.3V HCMOS/TTL compatible
Logic “high” or floating – active; logic “low” – infinite impedance
Vc
0
±0.5
4.0
V
ppm
ppm/V
V
from nominal F
Monotonic, posit
@25°C, Fnom.
±1
0.4
2.0
Deviation slope
Setability
Vc0
1.0
3.0
Environmental and Mechanical
Operating temp. range
Mechanical Shock
Vibration
-30°C to 70°C Standard, Other options – see chart below
Per MIL-STD-202, 30G, 11ms
Per MIL-STD-202, 5G to 2000 Hz
Leads Temperature 260°C, for 10s, Max, 230°C for 30s Max SMD profile
Soldering Conditions
Hermetic Seal
-8
Leak rate less than 1x10 atm.ccm/s of helium
Electrical Connections
Pin Out
Pin 1- Vc ; Pin 2-Vref; Pin 4- Case, GND; Pin5 – Output; Pin 8- Vcc
Creating a Part Number
“V” for
FREQUENCY, MHz
VFT8H
VCXO
S for SMD
Temperature Range
Temperature Stability
Aging
Supply Voltage
Code
A
Specification
0°C to 50°C
Code
17
Specification
1x10-7
Code
Specification
1x10-9/Day
5x10-10/Day
2x10-10/Day
Code
Specification
L
S
P
5
3
5V ± 5%
B
-10°C to 60°C
0°C to 70°C
58
5x10-8
3.3V ± 5%
C
28
2x10-8
1x10-8
Rev 04172003
D
-20°C to 70°C
-30°C to 70°C
-40°C to 85°C
18
E
59
5x10-9
Yx10-Z
Not all combinations are available. Consult Factory.
F
YZ
VF Technologies • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
2
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