Crystal Oscillators (XO's)
XO-400
Performance Characteristics
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
Description:
Vectron International has introduced a series of low
cost complementary PECL Crystal Oscillators (XO's)
available in frequencies from 15 MHz to 250 MHz in a
standard 4 pin DIP package. This series offers ultra low
jitter of <0.5 ps rms from 12 kHz to 20 MHz bandwidth.
Features:
Ultra low jitter
3.3 Vdc or 5 Vdc operation
Complementary PECL output
Standard 4 pin DIP package
Frequencies:
15 MHz to 250 MHz
Package Size:
20.32 x 12.70 x 10.29 mm (0.8" x 0.5" x 0.405")
Supply Voltage:
C = 5 Vdc 5%
D = 3.3 Vdc 5%
Supply Current:
<80 mA
Output Type:
Complementary PECL
Output Level:
V
OH
("1") = Vcc - 1.02V min.
@ +25C
V
OL
("0") = Vcc - 1.63V max
Rise/Fall Time tr/tf:
<1.5 ns (20% to 80%)
Symmetry (Duty Cycle):
50/50 5% @ Vcc - 1.3V for "D"; Vcc - 3V for "C"
Internal Load:
274 ohm internal load for each output for 3.3 Vdc, 510 ohms for 5Vdc
Temperature Stability:
C-C = 20 ppm All Causes over 0C to +70C
C-F = 32 ppm All Causes over 0C to +70C
C-G = 50 ppm All Causes over 0C to +70C
F-G = 50 ppm All Causes over -40C to +85C
All Causes = Entire Temperature Range, Aging for 10 years
Initial Accuracy and Supply variation.
Jitter:
<0.5 ps rms from 12 kHz to 20 MHz BW @ 155.52 MHz
Parameter
Characteristics
68
8798_AA's Vectron 05/30/02 3:11 PM Page 68
Crystal Oscillators (XO's)
XO-400
Outline Drawing
Ordering Information
1
Complementary output
7
Case, Ground
8
Output
14
Supply Voltage (Vcc)
Frequency
Application
19.4400 MHz
SONET
38.8800 MHz
SONET
51.8400 MHz
OC-1
77.7600 MHz
SONET
78.1250 MHz
10G / 128
125.0000 MHz
FDDI
139.2640 MHz
155.5200 MHz
OC-3, SDH, STM1
156.2500 MHz
10G/64
161.1328 MHz
10.3125 G/64
166.6286 MHz
OC-3 FEC 15/14
167.3316 MHz
OC-3 FEC 255/237
175.0000 MHz
177.7371 MHz
OC-3 FEC 8/7
XO
Output Frequency
See Standard
Frequencies Chart above.
400
F
D
C
C
155.52
Product Family
XO = Clock Oscillator
Package
400 = 4 pin DIP
Supply Voltage
C = 5.0 Vdc 5%
D = 3.3 Vdc 5%
Output
F = Complementary PECL
MHz
Temperature Stability
C-C = 20 ppm All causes 0C to +70C
C-F = 32 ppm All causes 0C to +70C
C-G = 50 ppm All causes 0C to +70C
F-G = 50 ppm All causes -40C to +85C
Note: Other stabilities are available upon request
Pin Out Information
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
Standard Frequencies
(in.)
1
7
8
14
.002)
.051
Dia
(.200)
5.08
69
X O
8798_AA's Vectron 05/30/02 3:11 PM Page 69
PDF 
ZIP