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參數(shù)資料
| 型號： | VFT540SCSTFREQ |
| 廠商： | VALPEY FISHER CORP |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 8 MHz - 250 MHz, CMOS OUTPUT |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 274K |
| 代理商： | VFT540SCSTFREQ |
VFT540 Series SMD CLOCK
VF Technologies
75 South Street, Hopkinton, MA 01748
Tel. 1-800-XTALREP, 508-435-6831
FAX 508 4355289
Specifications
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Absolute Maximum Ratings
Input Break
Down Voltage
Storage temp.
Contr. Voltage
Electrical
Frequency
Range
Input Voltage
Vcc
-0.5
7.0
V
Ts
Vc
-40
-1
125
9
° C
V
F
8
250
MHz
Vcc
3.135
4.75
3.30
5.0
±10
±1
±1
3.465
5.25
50
±20
V
L
S
Input Current
Frequency Stab.
F/F
Frequency
Stability for
SONET
Icc
No Load
Overall
vs. Temperature
vs. Vcc
aging
Overall
mA
ppm
ppm/V
ppm/year
ppm
%
ns
V
V
ms
ps
dBc/Hz
@ 155 MHz
See chart
First Year
@Vc = 1.65 V
fj>100 Hz
@155 MHz
F/F
Load
Duty cycle
Rise/Fall time
Logic "1" level
Logic "0" level
Start up time
Phase jitter
SSB Phase Noise
15 pF max
@50%
20 to 80 %
1
σ
@10 Hz
@100 Hz
@1 KHz
@10 KHz
@100 KHz
45
50
2
2
0.4
-70
-100
-130
-150
-160
55
Tr/Tf
Voh
Vol
Ts
0.9Vcc
0.1Vcc
10
1
Tristate
Function
Enable/disable
Time
Environmental and Mechanical
Operating temp.
range
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
Input HIGH (>2.5V),or floating: ACTIVE
Input LOW (<0.5V) : INFINITE IMPEDANCE
Te/Td
100
ns
0°C to 70°C , -40°C to 85°C
Per MIL-STD-202, Method 213, Cond. E
Per MIL-STD-883, Method 1011, Cond. A
Per MIL-STD-883, Method 2007, Cond. A
230°C for 90s Max
Leak rate less than 5x10-8 atm.cc/s of helium (crystal only)
Electrical Connections
Pin Out
Pin #1- N/C
Pin #2 – Tristate control (code “T”), or N/C, (code “N”)
Pin #3 - Case, Gnd
Pin #4 - Output
Pin #5 – N/C
Pin #6 - Vcc
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