16
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
Voltage Controlled Crystal Oscillators (VCXO's)
VC-480
Performance Characteristics
Description:
Precision 14 x 9 mm VCXO with packaged crystal.
Standard footprint.
Features:
Small SMD standard VCXO
2.0MHz to 51.84 MHz
-20C to +70C /-40C to +85C
5V and 3.3V supply
HCMOS / LVHCMOS output
Frequency:
f
o
2.0
51.84
MHz
Supply Voltage option D:
V
CC
3.135
3.3
3.465
V
option C:
V
CC
4.75
5.0
5.25
V
Current:
I
CC
40.0
mA
Output:
HCMOS / LVHCMOS
Rise/Fall Time tr/tf:
t
R
/ t
F
5.0
ns
Symmetry (Duty/Cycle):
SYM
40
60
%
Temperature Range:
T
OP
-20/70, -40/85
C
Temp. stab. D - 155 -20 to +70C:
F
TEMP
-15.0
+15.0
ppm
F - 205 -40 to +85C:
F
TEMP
-
20.0
+20.0
ppm
Accuracy @ +25C after reflow:
F
CAL
-10.0
+10.0
ppm
Aging first year:
F
FIRST
-3.0
+3.0
ppm
Aging per year thereafter:
F
AGING
-1.0
+1.0
ppm
Freq. vs. supply for 5% changes.:
F
SUP
-5.0
+5.0
ppm
Freq. vs. load for 20% change:
F
LOAD
-2.0
+2.0
ppm
Deviation:
F
PULL
-100
+100
ppm
Control Voltage opt. D: (3.3V sup.)
V
C
0.0
3.0
V
opt. C: (5.0V sup.)
V
C
0.5
4.5
V
Transfer Function:
positive
Linearity:
Lin
10
%
Storage Temperature:
TS
-40
+105
C
Package Size:
14.0x9.27x4.98 mm
Parameter
Symbol
Minimum
Typical
Maximum
Units
8798_AA's Vectron 05/30/02 3:11 PM Page 16
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
17
Voltage Controlled Crystal Oscillators (VCXO's)
Ordering Information
Pin
Function
1
Control Voltage
2
Ground, Case
3
RF output
4
Supply voltage
Dimensions in millimeters
Test Circuit
VC
Output Frequency
2.0 - 52.0 MHz
480
A
D
D
155
32.368
Product Family
VC = VCXO
Package
480 =14.0x9.27x4.98 mm
Supply Voltage
D = +3.3V +5%
C = +5.0V +5%
Output Type
A = HCMOS/LVCMOS
MHz
A
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)
Oscillator
Counter
V
V
A
15 pF
Oscilloscop
e
RE = 50
Ohm
975 Ohm
50 Ohm
O
O
1
4
3
2
O
O
O
+Ustell
+U
B
GND
Pin Out Information
VC-480
Reflow Profile
Outline Drawing/Pad Layout
V C X O
8798_AA's Vectron 05/30/02 3:11 PM Page 17
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