12 Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Voltage Controlled Crystal Oscillators (VCXO’s)
J-Type CMOS Output Option
Description:
The J-Type CMOS output option
is a high reliability CMOS VCXO, ASIC based and
available in a 6 or 4 pin J-Lead ceramic package.
Features:
• Output Frequencies from 1.024 MHz to 77.76 MHz
• 3.3 or 5.0 volt options
• Small 14mm x 9mm J-Lead Package
• Low phase noise and custom options
• 0/70°C or –40/85°C operating temperature
• Tri-state output (CMOS)
Center Frequency, see ordering information fo1.024 77.760 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 (frequency dependent) 10 mA +0.25 mA per MHz, typical
Output Level High VOH 0.8*Vcc - V
Output Level Low VOL - 0.1*Vcc V
Output Rise and Fall Time tR/tF 5ns
Symmetry (Duty Cycle2) SYM 45/55 or 40/60 %
Operating Temperature, see ordering info TOP 0/70, -40/85 °C
RMS Jitter, Output = 12.0-77.760 MHz 3ps
RMS Jitter, Output = 12.0 -77.760 MHz,
Band = 12.0 kHz to 20 MHz <0.5 ps
Absolute Pull Range over the operating APR ±50, ±100 ppm
temperature range, aging and power supply.
Vc= 0.5 to 4.5 supply or 0.3 to 3.0V at 3.3V
supply. See ordering information for options
Control Range 0 VDD
Gain Transfer: KVPositive
(Frequency vs. Control Voltage)
Control Input Leakage IL1uA
Control Voltage Modulation Bandwidth BW 10 kHz
Storage Temperature TS-55 - 125 °C
Soldering Temp./Time TLS - - 220/10 °C/s
Package Size 14 x 9 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. Duty cycle is defined as on-time versus period at 1.4V for TTL and 2.5V for CMOS (5 volt supply) and at 1.65 V for CMOS
(3.3 volt operation)
Performance Characteristics
8798_AA's Vectron 05/30/02 3:11 PM Page 12
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com 13
Voltage Controlled Crystal Oscillators (VCXO’s)
1.024 1.544 2.000 2.048 3.088 3.580
3.686 4.000 4.032 4.096 4.434 5.000
6.144 6.176 6.312 6.400 8.000 8.192
8.448 10.000 12.000 12.288 12.352 13.000
14.318 15.360 15.440 16.000 16.384 18.432
19.44 20.000 20.480 24.000 24.576 24.704
27.000 30.000 32.000 32.768 34.368 35.328
38.880 40.000 40.960 44.736 50.000 51.840
52.000 65.536 77.760
Outline Drawing Pad Layout
mm
in
Pin Out Information
1 Vc VCXO Control V oltage.
2 T ri-state TTL logic low disables output
TTL logic high, or no connect, enables output
3 GND Case and electrical ground.
4 Output VCXO Output
5 CMOS/TTL TTL logic low optimizes symmetry for CMOS
select TTL logic high, or NC, optimizes symmetry for TTL.
6V
CC Power Supply V oltage (5.0 V or 3.3V ±10%)
Ordering Information
Temperature Range
C = 0 to 70°C
L= -40 to 85°C
Frequency
GU C J T 44.736
Package:
6-Pin Ceramic SOJ
Supply Voltage
D= 3.3 Vdc ±10%
C= 5.0 Vdc ±10%
Output
U = VCXO
L= ±10% Linear VCXO
APR
G = ±50 ppm
N = ±80 ppm
H = ±100 ppm
MHz
Specials
N= Standard
Duty Cycle
A= TTL/CMOS 45/55%
J= CMOS 45/55%
K= CMOS 40/60%
N
1.024 - 77.760 MHz
Tri-state
T =Pin 2
1 2 3
6 5 4
Pin Symbol Function
Standard Frequencies (MHz)
DJ
CMOS Output Option
VCXO
8798_AA's Vectron 05/30/02 3:11 PM Page 13
