Voltage Controlled Crystal Oscillators (VCXO’s)
VC-480
Description:
Precision 14 x 9 mm VCXO with packaged crystal.
Standard footprint.
Features:
•
•
•
•
Small SMD standard VCXO
2.0MHz to 51.84 MHz
-20°C to +70°C /-40°C to +85°C
5V and 3.3V supply
• HCMOS / LVHCMOS output
Performance Characteristics
Parameter
Frequency:
Supply Voltage option
D:
option
C:
Current:
Output:
Rise/Fall Time tr/tf:
Symmetry (Duty/Cycle):
Temperature Range:
Temp. stab.
D - 155
-20 to +70°C:
F - 205
-40 to +85°C:
Accuracy @ +25C after reflow:
Aging first year:
Aging per year thereafter:
Freq. vs. supply for 5% changes.:
Freq. vs. load for 20% change:
Deviation:
Control Voltage opt.
D:
(3.3V sup.)
opt.
C:
(5.0V sup.)
Transfer Function:
Linearity:
Storage Temperature:
Package Size:
Lin
TS
-40
14.0x9.27x4.98 mm
t
R
/ t
F
SYM
T
OP
F
TEMP
F
TEMP
F
CAL
F
FIRST
F
AGING
F
SUP
F
LOAD
F
PULL
V
C
V
C
-15.0
-
20.0
-10.0
-3.0
-1.0
-5.0
-2.0
-100
0.0
0.5
positive
10
+105
%
°C
40
-20/70, -40/85
+15.0
+20.0
+10.0
+3.0
+1.0
+5.0
+2.0
+100
3.0
4.5
Symbol
f
o
V
CC
V
CC
I
CC
Minimum
2.0
3.135
4.75
Typical
3.3
5.0
Maximum
51.84
3.465
5.25
40.0
Units
MHz
V
V
mA
ns
%
°C
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
V
V
HCMOS / LVHCMOS
5.0
60
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
16
Voltage Controlled Crystal Oscillators (VCXO’s)
VC-480
Outline Drawing/Pad Layout
Reflow Profile
VCXO
Dimensions in millimeters
Pin Out Information
Pin
1
2
3
4
Function
Control Voltage
Ground, Case
RF output
Supply voltage
+Ustell
Test Circuit
O
V
1
+U
B
Oscillator
A
975 Ohm
3
O
4
O
15 pF
50 Ohm
Oscilloscop
RE e 50
=
Ohm
O
Counter
2
V
GND
O
Ordering Information
VC
Product Family
VC
= VCXO
Package
480
=14.0x9.27x4.98 mm
480
D
A
D
155
A
32.368
MHz
Output Frequency
2.0 - 52.0 MHz
Supply Voltage
D
= +3.3V +5%
C
= +5.0V +5%
Output Type
A =
HCMOS/LVCMOS
Stability
D-155
= 15 ppm over -20
o
C to +70
o
C)
F-205
= 20 ppm over -40
o
C to +85
o
C)
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
17
微控制器 MCU
