CRYSTAL CLOCK OSCILLATORS
LVCMOS
Data Sheet 9940
M
Rev. V
SJ-A1420 Series
Description
The
SJ-A1420 Series
of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible
signals for bus connected systems. Supplying Pin 1 of the SJ-A1420 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 standard wave soldering operations without damage.
Features
• Wide frequency range– 1.0MHz to 80.0MHz
• User specified tolerance available
• Space-saving alternative to discrete component
oscillators
• High shock resistance, to 3000g
• Metal lid electrically connected to ground to reduce
EMI
• 3.3 Volt operation
• COTS/Dual use
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Low Jitter - Wavecrest jitter characterization
available
• High Q Crystal actively tuned oscillator circuit
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• Low power consumption
• Gold plated leads
• RoHS Compliant, Lead Free Construction
Electrical Connection
Pin
1
2
3
4
Connection
Enable/Disable
Input
Ground
Output
V
DD
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-A1420 Series
LVCMOS
Continued
Data Sheet 9940
M
Rev. V
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Frequency
Duty Cycle
Logic 0
Logic 1
Rise & Fall Time
Tpz
Enable/Disable
Logic High Voltage
Enable/Disable
Logic Low Voltage
Jitter, Integrated
Jitter, Wavecrest
Characterized
(2)
Phase Noise
Symbol
-----
-----
V
OL
V
OH
tr,tf
-----
-----
-----
J
-----
Conditions
-----
@ V
DD
/2
@ 600µA
@ 600µA
10-90%
-----
-----
-----
Integrated from phase noise,
12kHz to 20MHz, RMS
Random Period
Accum, pk-to-pk
@ 10Hz
@100Hz
@1kHz
@10kHz
@100kHz
@ >1Mhz
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
Conditions
3.3V ±10%
No Load
-----
-----
-----
-----
-----
-----
Min
1.0MHz
45/55%
-----
V
DD
-0.2V
-----
-----
1.6V
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-100ppm
Typical
-----
-----
-----
-----
-----
-----
-----
-----
0.1 ps
2.3ps
26ps
-70 dBc/Hz
-105 dBc/Hz
-130 dBc/Hz
-145 dBc/Hz
-150 dBc/Hz
-150 dBc/Hz
-----
Max
80.0MHz
55/45%
0.2V
-----
8 ns
25 ns
-----
0.4V
-----
-----
-----
-----
-----
-----
-----
-----
-----
+100ppm
£(Δf)
Frequency Stability
(1)
dF/F
General Characteristics
Parameter
Supply Voltage
(3)
Supply Current
Output current
Operating temperature
Storage temperature
Power Dissipation
Load
Start-up time
Mechanical Shock
Thermal Shock
Vibration
Hermetic Seal
Symbol
V
DD
I
DD
I
O
T
A
T
S
P
D
----
t
S
Min
2.97V
0.0 mA
0.0 mA
0°C
-55°C
-----
-----
-----
Typical
3.3V
25mA
-----
-----
-----
-----
-----
2 ms
Ma3x
3.63V
40mA
±16.0 mA
70°C
125°C
145 mW
15pf
10 ms
Environmental and Mechanical Characteristics
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-883, Method 1011, Condition A
0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55Hz to 2000 Hz
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.
3) Internal high frequency power source decoupling.
Test Load:
Creating a Part Number
SJ - A142X - FREQ
Package Code
SJ 4 J Lead SMD
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
Input Voltage
Code Specification
A
3.3V
5V
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-A1420 Series
Continued
Data Sheet 9940M
Rev. V
Max Reflow Profile
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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