Voltage Controlled Crystal Oscillators (VCXO’s)
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)
Performance Characteristics
Parameter
Center Frequency,
see ordering information
Supply Voltage
1
, 5.0 volt option
3.3 volt option
Maximum Supply Voltage
Supply Current
Output Level High (0/70°C)
Output Level Low (0/70°C)
Output Level High (-40/+85°C)
Output Level Low (-40/+85°C)
Output Rise and Fall Time
Symmetry (Duty Cycle)
Operating Temperature, see ordering info
RMS Jitter, 155.52 MHz, 12 kHz to 20 MHz
offset
Absolute Pull Range over the operating
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
Transfer Function:
(Frequency vs. Control Voltage)
Control Input Leakage
Control Voltage Modulation Bandwidth
Storage Temperature
Soldering Temp./Time
Package Size:
K
V
IL
BW
T
S
T
LS
APR
V
OH
V
OL
V
OH
V
OL
tR/tF
SYM
T
OP
Vcc-1.025
Vcc-1.810
Vcc-1.085
Vcc-1.830
45
0/70, -40/85
0.5
±32, ±50
1.0
-
-
-
-
Symbol
f
o
Minimum
15
4.5
3.0
Typical
5.0
3.3
Maximum
180
5.5
3.6
7
65
Vcc-0.880
Vcc-1.620
Vcc-0.880
Vcc-1.555
1
55
Unit
MHz
Vdc
Vdc
V
mA
V
V
V
V
ns
%
°C
ps
ppm
0
Positive
Vcc
0.1
10
-55
-
-
-
14mm x 9 mm x 4.5 mm
125
220/10
mA
kHz
°C
°C/s
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.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
14
Voltage Controlled Crystal Oscillators (VCXO’s)
J-Type
Outline Drawing
Recommended Solder Pad Layout
Dimensions are in
inches and (millimeters)
0.118
(3.00)
VCXO
0.200
(5.08)
0.050
(1.27)
0.100
(2.54)
0.346
(8.80)
mm
in
Pin Out Information for the PECL output option
Pin Symbol Function
1
2
3
4
5
6
Vc
N/C or E/D
GND
Output
C
Output
V
CC
1
Standard Frequencies
77.76 MHz
155.52 MHz
82.944 MHz
161.1328 MHz
139.264 MHz
166.6286 MHz
VCXO Control Voltage.
No Connect or Output Disable option
Case and electrical ground.
VCXO Output
VCXO Complementary Output
Power Supply Voltage (5 V or 3.3V ±10%)
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.
Ordering Information
J
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
D
U
G
L
M
E
P
77.760
MHz
Frequency
15 MHz to 180 MHz
Specials
N
= Standard
P
= 6 ps rms (<1ps rms
12 kHz - 20 MHz offset) jitter
Tri-state
U
= None
E
= Enable/Disable on pin 2
Temperature Range
C
= 0 to 70°C
L
= -40 to 85°C
Duty Cycle
M
= PECL 45/55%
APR
F
= ±32 ppm
G
= ±50 ppm
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
15
Microchip MCU
京公网安备 11010802033920号
EEWORLD
