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參數資料
| 型號： | VF946S-J-25-FREQ |
| 廠商： | VALPEY FISHER CORP |
| 元件分類： | XO, clock |
| 英文描述： | VCXO, CLOCK, 1.5 MHz - 52 MHz, HCMOS/TTL OUTPUT |
| 封裝： | CERAMIC, HERMETIC SEAL, J LEADED PACKAGE-6 |
| 文件頁數： | 1/1頁 |
| 文件大?。?/td> | 0K |
| 代理商： | VF946S-J-25-FREQ |
OBSOLETE
VCXO
VF946 J/G Series
75 South Street, Hopkinton, MA 01748
800-982-5737
508-435-6831
Fax: 508-435-5289 www.valpeyfisher.com
1
VF946J/G Series
HCMOS/TTL Compatible Tri–State
Hybrid VCXO 6 Pin Ceramic Package
FEATURES
Tristate Output Standard
Small 6 Pin DIP
Compatible with the popular
S–type VCXO
Industrial Temperature Range Available
Very Low Phase Jitter
High Reliability
Frequencies to 52 MHz
Parameter
Symb
Condition
Min
Typ
Max
Unit
Note
Input Break
Vcc
–0.5
7.0
V
Down Voltage
Storage Temp.
Ts
–55
+125
°C
Control Voltage
Vc
–1
9
V
Frequency
Range
F
1.5
52
MHz
Frequency
F/F
vs. Temp., Vcc
±25
ppm
Stability
Input Voltage
Vcc
4.75
5.00
5.25
V
Std.
3.15
3.30
3.45
LV Opt.
Input Current
Icc
No load
30
mA
1
Load
Duty Cycle
@1.4V
40
50
60
%
2
Rise/Fall Time
Tr/Tf
10% to 90%
6
ns
0.4V to 2.4V
4
Logic “1” Level
Voh
Max. Load
0.9Vcc
V
Logic “0” Level
Vol
Max. Load
0.1Vcc
V
Start–up Time
Ts
15
ms
Phase Jitter
1s
1
ps
fj>1KHz
Modulation BW
@Vc = 2.5V
10
KHz
@–3db
Input Impedance
fm<10KHz
50
KOhm
Control Voltage
Vc
Vcc = 5.0V
0.00
2.50
5.00
V
3
Vcc = 3.3V
0.00
1.65
3.30
Absolute Pull
Overall, includes
±50
ppm
Range
stability
(guaranteed
over temp.
capture range)
Deviation Slope
Monotonic, posit.
50
ppm/V
4
Linearity
±20
%
Setability (Vc
Vc0
@25°C,
2.00
2.50
3.00
V
Std
for center freq)
Fnominal
1.25
1.65
2.05
LV opt.
Tristate Function
Enable/Disable
100
ns
Time
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.
Hermetic Seal
Leak rate less than 5 x 10
–8 atm.cc/s of helium
Pin Out
Pin #1– Voltage Control
Pin #2– Tristate Control
Pin #3– Case, Ground
Pin #4– Output
Pin #5– N/C
Pin #6– Vcc
10 TTL gates or 50pF
Absolute
Max.
Ratings
Electrical
Environmental and
Mechanical
Electrical
Connections
Notes:
1. Frequency dependent.
2. Tighter duty cycle available.
3. 0V to 5V control voltage available for Vcc 3.3V. Nominal control
voltage is 2.5V and setability is ±0.5V in this case.
4. Frequency dependent, 30 ppm at F>40MHz.
5. Surface mount available, see VF946G, VF946L.
VF946J
19.44MHZ
BO1H
0.010R TYP
(0,254)
0.010R TYP
(0,254)
0.010" ± 0.002"
(0,254mm ± 0,05mm)
0.010" ± 0.002"
(0,254mm ± 0,05mm)
0.310" ± 0.010"
(7,87mm ± 0,254mm)
0.310" ± 0.010"
(7,87mm ± 0,254mm)
93
0.053" ± 0.005"
(1,35mm ± 0,254mm)
0.050" ± 0.005"
(1,27mm ± 0,127mm)
VF946J
VF946G
0.295"±0.01"
(7,49±0,254mm)
0.335"±0.008"
(8,51±0,203mm)
0.188" REF
(4,78mm)
0.068"
(1,73mm)
0.128" MAX
(3,25mm)
0.07"±0.010"
(1,78±0,254mm)
0.200"±0.005"
(5,08±0,127mm)
0.100"±0.005"
(2,54±0,127mm)
0.046"±0.005"
(1,17±0,127mm)
0.018"±0.002"
(0,457±0,05mm)
#6
#5
#4
#1
#2
#3
Creating a Part Number
VF946
INPUT VOLTAGE
Code
Specification
L
3.3 Volt ±5%
5.0 Volt ±5% (std.)
OPERATIONAL TEMP. RANGE
Code
Specification
0 C to +70 C (std.)
1
-40 C to +85 C
ABSOLUTE PULL RANGE (ppm)
Code
Specification
±50 ppm (std.)
XXX
up to ±100 ppm
FREQUENCY STABILITY
Code
Specification
S
±20
ppm
±25
ppm (std.)
DUTY CYCLE
Code
Specification
H
±5%
±10% (std.)
(customer to specify)
FREQ.
Example: VF946SHL-1G-75-44.736MHz: Frequency Stability
±20ppm, Duty Cycle ±5%, Input Voltage 3.3 Volt ±5%, Operating
Temperature -40 C to +85 C, APR ±75ppm, Frequency 44.736MHz.
Pin Configuration Gull Wing
PIN CONFIGURATION
Code
Specification
J
"J" Bend
G
Gull Wing
All dimensions are typical unless otherwise specified.
Input HIGH (>2.5V) or floating: ACTIVE
Input LOW (<0.5V): INFINITE IMPEDANCE
*Not recommended for new designs
Rev_B1208
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