CRYSTAL CLOCK OSCILLATORS
CMOS
Data Sheet 0001B
Rev. J
SJ-A1450 Series
Description
The
SJ-A1450 Series
of quartz crystal oscillators provide enable/disable 3-state CMOS compatible signals
for bus connected systems. Supplying Pin 1 of the SJ-A1450 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. All units are designed to
survive wave soldering operations without damage.
Features
• Wide frequency range– 4.0MHz to 40.0MHz
• User specified tolerance available
• Will withstand vapor phase temperatures of 253°C
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
Electrical Connection
Pin
1
2
3
4
Connection
Enable/Disable
Input
Ground
Output
V
DD
• 3.3 Volt operation
• Low Jitter
• High Q Crystal actively tuned oscillator circuit
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• Low power consumption
• Gold plated leads
• TTL compatible (HCT) at specified supply voltage
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
CRYSTAL CLOCK OSCILLATORS
SJ-A1450 Series
CMOS
Continued
Data Sheet 0001B
Rev. J
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Frequency
Duty Cycle
Logic 0
Logic 1
Rise & Fall Time
Tpz
Jitter, RMS
(2)
Frequency Stability
(1)
Symbol
Conditions
-----
-----
-----
@ V
DD
/2
V
OL
@ 600µA
V
OH
@ 600µA
tr,tf
10-90%
-----
-----
-----
-----
dF/F
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
Min
4.0MHz
45/55%
-----
V
DD
-0.2V
-----
-----
-----
-100ppm
Typical
-----
-----
-----
-----
-----
-----
-----
-----
Max
40.0MHz
55/45%
0.2V
-----
3 ns
25 ns
8 psec
+100ppm
General Characteristics
Parameter
Supply Voltage
Supply Current
Output current
Operating temperature
Storage temperature
Power Dissipation
Lead temperature
Load
Start-up time
Symbol
V
DD
I
DD
I
O
T
A
T
S
P
D
T
L
----
t
S
Conditions
-----
No Load
-----
-----
-----
-----
Soldering, 10 sec.
-----
-----
Min
3.135V
0.0 mA
0.0 mA
0°C
-55°C
-----
-----
-----
-----
Typical
3.3V
-----
-----
-----
-----
-----
-----
-----
2 ms
Max
3.465V
30mA
±16.0 mA
70°C
125°C
104 mW
300°C
15pf
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
300°C 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 characterization.
Test Load:
Creating a Part Number
SJ- A145X - FREQ
Package Code
SJ 4 J Lead SMD
Input Voltage
Code Specification
A
3.3V
5V
Tolerance/Performance
0 ±100ppm 0-70°C
1 ±50ppm 0-70°C
7 ±25ppm 0-70°C
9 Customer Specific
A ±20ppm 0-70°C
B ±50ppm -40 to +85°C
C ±100ppm -40 to +85°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
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