18
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
Performance Characteristics
Description
precision 14 x 9 mm VCXO with high
frequency crystal, standard footprint.
Features
Small SMD HFF VCXO
50.0MHz to 170MHz
3.3V supply voltage
-20 to +70C / -40 to 85C
LVPECL / HCMOS output
Complementary outputs available
Frequency:
f
o
50.0
170.0
MHz
Supply Voltage:
VCC
3.135
3.3
3.465
V
Output option A LVHCMOS:
I
CC
20.0
40.0
mA
option F compl. LVPECL:
I
CC
50.0
70.0
mA
Output option A
LVHCMOS
option F:
complementary. LVPECL
Output load option A:
1 kOhm // 15pF
option F:
50 Ohm
Rise/Fall Time tr/tf: option A:
t
R
/ t
F
3.0
ns
option F:
t
R
/ t
F
1.0
ns
Symmetry (Duty/Cycle):
SYM
40
60
%
Temp. stab. D - 205 -20 to +70C:
F
TEMP
-20.0
+20.0
ppm
F - 305 -40 to +85C:
F
TEMP
-30.0
+30.0
ppm
Accuracy @ +25C after reflow:
FCAL
-15.0
+15.0
ppm
Aging first year:
F
FIRST
-3.0
+3.0
ppm
Aging per year thereafter:
F
AGING
-2.0
+2.0
ppm
Freq. vs. supply for 5% change:
F
SUP
-3.0
+3.0
ppm
Freq. vs. load for 10% change:
F
LOAD
-1.0
+1.0
ppm
Deviation:
F
PULL
100
ppm
Control voltage:
V
C
0.3
3.0
V
Transfer Function:
positive
Linearity:
Lin
10
%
Storage Temperature:
TS
-45
+95
C
Package Size:
13.8 x 9.1 x 5.5 mm
Parameter
Symbol
Minimum
Typical
Maximum
Units
Voltage Controlled Crystal Oscillators
VC-490/495
8798_AA's Vectron 05/30/02 3:11 PM Page 18
19
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
VC-490/495
Option A outline drawing/pad layout
Ordering Information
Pin
Function
1
Control Voltage
2
GND, Case
3
RF Output
4
Supply voltage
Option F
outline drawing/pad layout
Pin Out Information, VC-490
Pin
Function
1
Control Voltage
2
N.C. (Output Enable/Disable)
3
GND, Case
4
RF Output
5
Complementary RF-output
6
Supply Voltage
Pin Out Information, VC-495
61.44MHz
77.76MHz
125.0MHz
155.52MHz
166.6286MHz
167.331645MHz
Standard Frequencies
VC
Temperature & Stability
D-205 = 20ppm over -20 to +70
o
C
F-305 = 30ppm over 40 to +85
o
C
Output Frequency
50.0... 170.0MHz
490
A
D
D
205
155.52
Product Family
VC = VCXO
Package
490 =13.8x9.1x5.5mm with 6 pads
495 =13.8x9.1x5.5mm with 4 pads
Supply Voltage
D = +3.3V +5%
Output Type
A = LVCMOS
F = complementary. LVPECL
MHz
A
Voltage Controlled Crystal Oscillators
V C X O
8798_AA's Vectron 05/30/02 3:11 PM Page 19
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