SJ-A1420
Series
LVCMOS
SJ-A1420 Series
Rev S
Frequency Range: 1.0 MHz to 80.0 MHz
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 disable mode, Pin 3 presents a high impedance to the load. All units are designed to survive
standard wave soldering operations without damage.
Features
Size, mm
9 x 14
I/O
4 J Lead
Supply Voltage
3.3V / 5V
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Low jitter - Wavecrest jitter characterization avail-
able
• Wide frequency range—1.0 MHz to 80.0 MHz
• 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
• 3.3 Volt operation
• 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
Creating a Part Number
SJ - A142X - FREQ
Package Code
SJ
4 J Lead 9x14 mm SMD
Input Voltage
Code Specification
A
3.3 V
5V
Tolerance/Performance
0 ±100 ppm 0-70°C
1 ±50 ppm 0-70°C
7 ±25 ppm 0-70°C
9 Customer Specific
A ±20 ppm 0-70°C
B ±50 ppm -40 to +85°C
C ±100 ppm -40 to +85°C
Drawing Specifications
Electrical Connection
Pin
1
For the most up to date speci-
fications on each NEL prod-
uct, log on to our website—
www.nelfc.com
Dimensions shown in inches and millimeters.
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
LVCMOS
SJ-A1420 Series
Rev S
Frequency Range: 1.0 MHz to 80.0 MHz
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
—
—
V
OL
V
OH
tr, tf
—
—
—
—
dF/F
Frequency
Duty Cycle
Logic 0
Logic 1
Rise & Fall Time
T
pz
Enable/Disable
Logic High Voltage
Enable/Disable
Logic Low Voltage
Jitter, RMS
(2)
Frequency Stability
(1)
Conditions
—
@V
DD
/2
@600 µA
@600 µA
10-90%
—
—
—
—
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
1.0 MHz
45/55%
—
V
DD
-0.2V
—
—
1.6 V
—
—
-100 ppm
Min
Typical
—
—
—
—
—
—
80.0 MHz
55/45%
0.2 V
—
8 ns
25 ns
—
0.4 V
—
+100 ppm
Max
—
—
3 psec
—
Supply Voltage
Supply Current
Output Current
Operating Temperature
Storage Temperature
Power Dissipation
Lead Temperature
Load
Start-up Time
General Characteristics
Parameter
(3)
Symbol
V
DD
I
DD
I
O
T
A
T
S
P
D
T
L
—
t
S
3.3V±10%
No Load
—
—
—
—
Soldering, 10 sec.
—
—
Conditions
2.97 V
0.0 mA
0.0 mA
0ºC
-55ºC
—
—
—
—
Min
Typical
3.3 V
25 mA
—
—
—
—
—
—
2 ms
3.63 V
40 mA
±16.0 mA
70ºC
125ºC
145 mW
300ºC
15 pf
10 ms
Max
Environmental and Mechanical Characteristics
Mechanical Shock
Thermal Shock
Vibration
Soldering Condition
Hermetic Seal
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-833, Method 1011, Condition A
0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55 Hz to 2000 Hz
300ºC for 10 seconds
Leak rate less than 1 x 10
-8
atm.cc/sec of helium
Footnotes:
1) Standard frequency stability (±20, ±25, ±50 ppm & others available).
2) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
3) Internal high frequency power source decoupling.
Test Load
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