357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
LVCMOS (1.8V)
SJ-C1440 Series
PRELIMINARY
Description
The SJ-C1440 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible
signals for bus connected systems. Supplying Pin 1 of the SJ-C1440 units with a logic "1" or open enables
its pin 3 output. In the disabled mode, pin 3 presents a high impedance to the load.
Features
Wide frequency range 30.0MHz to 100.0MHz
User specified tolerance available
Will withstand vapor phase temperatures of 253C
for 4 minutes maximum
Space-saving alternative to discrete component
oscillators
High shock resistance, to 3000g
Metal lid electrically connected to ground to reduce
EMI
High Q Crystal actively
tuned oscillator circuit
High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
Low Jitter - Wavecrest jitter characterization
available
1.8Volt operation
Power supply decoupling internal
No internal PLL avoids cascading PLL problems
Low power consumption
Gold plated leads
Electrical Connection
Pin Connection
1 Enable Input
2 Grd & Case
3 Output
4 V
DD
CRYSTAL CLOCK OSCILLATORS
Data Sheet 0210A
Rev. C
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
SJ-C1440 Series Continued
LVCMOS
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typical
Max
Frequency
-----
-----
30.0MHz -----
100.0MHz
Duty Cycle -----
@ V
DD
/2
45/55% -----
55/45%
Logic 0
V
OL
@ 600A -----
0.1V
0.2V
Logic 1
V
OH
@ 600A
V
DD
-0.2V
V
DD
-0.1V -----
Rise & Fall Time
tr,tf
10-90%
-----
1 ns
3.5 ns
Tpz
-----
-----
-----
-----
100 ns
Jitter, RMS
(2)
-----
-----
-----
-----
3 psec
Enable Voltage
-----
-----
1.3V
-----
-----
Disable Voltage
-----
-----
-----
-----
0.5V
Frequency Stability
(1)
dF/F
Overall conditions including:
-100ppm
-----
+100ppm
voltage, calibration, temp.,
10 yr aging, shock, vibration
General Characteristics
Parameter
Symbol
Conditions
Min
Typical
Max
Supply Voltage
V
DD
-----
1.71V 1.8V
1.89V
Supply Current
I
DD
No Load
0.0 mA
10mA
20mA
Output current
I
O
-----
0.0 mA -----
25.0 mA
Operating temperature
T
A
-----
0C -----
70C
Storage temperature
T
S
----- -55C -----
125C
Power Dissipation
P
D
-----
-----
-----
38 mW
Lead temperature
T
L
Soldering, 10 sec. ----- -----
300C
Load
----
-----
-----
-----
15pf
Start-up time
t
S
-----
-----
2 ms
10 ms
Environmental and Mechanical Characteristics
Mechanical Shock
Per MIL-STD-202, Method 213, Condition E
Thermal Shock
Per MIL-STD-833, Method 1011, Condition A
Vibration
0.060" double amplitude 10 Hz to 55 Hz, 35g's 55Hz to 2000 Hz
Soldering Condition
300C for 10 seconds
Hermetic Seal
Leak rate less than 1 x 10
-8
atm.cc/sec of helium
Footnotes:
1) Standard frequency stability (20,25,50ppm & others available)
2) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
Test Load:
Rev. C
CRYSTAL CLOCK OSCILLATORS
SJ - C144X - FREQ
Package Code
Tolerance/Performance
SJ 4 J Lead SMD
0 100ppm 0-70C
1 50ppm 0-70C
Input Voltage
7 25ppm 0-70C
Code Specification
9 Customer Specific
A 3.3V
A 20ppm 0-70C
B 2.5V
B 50ppm -40 to +85C
C 1.8 V
C 100ppm -40 to +85C
5.0V
Creating a Part Number
Data Sheet 0210A
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