14 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Voltage Controlled Crystal Oscillators (VCXO’s)
Performance Characteristics
J-Type PECL Output Option
Description:
Low jitter capable, PECL output VCXO in a 14mm x
9mm SMD package.
Features:
• Output Frequencies from 15 MHz to 180 MHz
• 3.3 or 5 volt options
• Small 14mm x 9mm J-Lead Package
• Complementary PECL Output
• Low phase noise and custom options
• 0/70°C or –40/85°C operating temperature
• Enable/Disable (PECL)
Center Frequency, see ordering information fo15 180 MHz
Supply Voltage1, 5.0 volt option 4.5 5.0 5.5 Vdc
3.3 volt option 3.0 3.3 3.6 Vdc
Maximum Supply Voltage 7 V
Supply Current 65 mA
Output Level High (0/70°C) VOH Vcc-1.025 - Vcc-0.880 V
Output Level Low (0/70°C) VOL Vcc-1.810 - Vcc-1.620 V
Output Level High (-40/+85°C) VOH Vcc-1.085 - Vcc-0.880 V
Output Level Low (-40/+85°C) VOL Vcc-1.830 - Vcc-1.555 V
Output Rise and Fall Time tR/tF1ns
Symmetry (Duty Cycle) SYM 45 55 %
Operating Temperature, see ordering info TOP 0/70, -40/85 °C
RMS Jitter, 155.52 MHz, 12 kHz to 20 MHz
offset 0.5 1.0 ps
Absolute Pull Range over the operating APR ±32, ±50 ppm
temperature range, aging and power supply.
Vc= 0.5 to 4.5 supply or 0.3 to 3.0V at 3.3
supply. See ordering information for options
Maximum Control Voltage 0 Vcc
Transfer Function: KVPositive
(Frequency vs. Control Voltage)
Control Input Leakage IL0.1 mA
Control Voltage Modulation Bandwidth BW 10 kHz
Storage Temperature TS-55 - 125 °C
Soldering Temp./Time TLS - - 220/10 °C/s
Package Size: 14mm x 9 mm x 4.5 mm
Parameter Symbol Minimum Typical Maximum Unit
1. Power supply bypass is required and a 0.1uF in parallel with a 0.01uF high frequency capacitor is recommended.
2. Transition times are measured from 20% to 80% of a full 10K ECL level swing.
8798_AA's Vectron 05/30/02 3:11 PM Page 14
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com 15
Voltage Controlled Crystal Oscillators (VCXO’s)
Outline Drawing
Dimensions are in
inches and (millimeters) 0.118
(3.00)
0.200
(5.08) 0.100
(2.54)
0.346
(8.80)
0.050
(1.27)
Recommended Solder Pad Layout
1 Vc VCXO Control V oltage.
2 N/C or E/D1No Connect or Output Disable option
3 GND Case and electrical ground.
4 Output VCXO Output
5C
Output VCXO Complementary Output
6V
CC Power Supply V oltage (5 V or 3.3V ±10%)
Pin Out Information for the PECL output option
1. By setting pin 2 high, the outputs are disabled and output on pin
4 is held low while Complementary output on pin 5 is held high.
Output is enabled by setting pin 2 at < Vcc-1.6V, See ordering
information for enable/disable option.
Pin Symbol Function
J-Type
Ordering Information
77.76 MHz 82.944 MHz 139.264 MHz
155.52 MHz 161.1328 MHz 166.6286 MHz
Standard Frequencies
mm
in
Temperature Range
C = 0 to 70°C
L= -40 to 85°C
Frequency
15 MHz to 180 MHz
GU L M E 77.760
Package:
6-Pin Ceramic SOJ
Supply Voltage
C= 5.0 Vdc ±10%
D= 3.3 Vdc ±10%
Output
U = VCXO
L= ±10% Linear VCXO
M = ±20 ppm stability VCXO
APR
F = ±32 ppm
G = ±50 ppm
MHz
Specials
N= Standard
P= 6 ps rms (<1ps rms
12 kHz - 20 MHz offset) jitter
Duty Cycle
M= PECL 45/55%
P
Tri-state
U = None
E= Enable/Disable on pin 2
DJ
VCXO
8798_AA's Vectron 05/30/02 3:11 PM Page 15
