
CRYSTAL CLOCK OSCILLATORS
Data Sheet 0016J
Rev. E
CMOS Compatible Enable/Disable
HA-A1370/A1380 Series
Description
The HA-A1370 Series of quartz crystal oscillators provide enable/disable 3-state CMOS compatible signals 
for bus connected systems. Supplying Pin 1 of the HA-A1370 units with a logic “0" enables the output on 
Pin 5. Alternately, supplying pin 1 of the HA-A1380 units with a logic “1" enables its Pin 5 output. In the 
disabled mode, Pin 5 presents a high impedance to the load. All units are resistance welded in an all metal 
package, offering RFI shielding, and are designed to survive standard wave soldering operations without 
damage. Insulated standoffs to enhance board cleaning are standard.
Features
• Wide frequency range– 0.5MHz to 20.0MHz
• 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  
• All metal, resistance weld, hermetically sealed     
   package
• 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 - Solder dipped leads available  
  upon request
Electrical Connection
Pin    Connection
 1   Enable Input 
 4   Grd & Case 
 5   Output 
 8   V
DD 
Dimensions are in inches and (MM)
 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
Data Sheet 0016J
HA-A1370/A1380 Series   Continued
Rev. E
CMOS Compatible - Enable/Disable  
Operating Conditions and Output Characteristics 
Electrical Characteristics
Parameter Symbol Conditions Min Typical Max
Frequency  ----- ----- 0.5MHz       ----- 20.0MHz 
Duty Cycle             -----      @ V 
Logic 0  VOL          @ 600µA             -----      ----- 0.2V  
Logic 1 
Rise & Fall Time  tr,tf    10-90%  -----           ----- 5 ns 
Tpz ----- ----- ----- ----- 25 ns 
Enable/Disable 
  Logic High Voltage ----- ----- 3.0V 2.5V ----Enable/Disable 
  Logic Low Voltage ----- ----- ----- ----- 0.4V 
Jitter, RMS 
Frequency Stability 
(2)
VOH           @ 600µA VDD-0.2V      -----  -----
----- ----- ----- ----- 8 psec
(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  VDD         -----               2.97V         3.3V 3.63V 
Supply Current  IDD          No Load     0.0 mA        ----- 40 mA 
Output current  IO          -----   0.0 mA        ----- ±16.0 mA 
Operating temperature  TA    -----                 0°C           ----- 70°C 
Storage temperature  TS      -----                 -55°C         ----- 125°C 
Power Dissipation P 
Lead temperature  TL        Soldering, 10 sec.      -----          ----- 300°C 
Load ---- ----- ----- ----- 15pf 
Start-up time t
D
S
/2        40/60%        ----- 60/40%
DD 
----- ----- ----- 145 mW
----- ----- 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 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
HA - A137X - FREQ
Package Code
HA  Leaded 4 pin (8 pin) 0  ±100ppm 0-70°C 
SA  Leaded 4 pin (8 pin) SMD 1  ±50ppm 0-70°C
Gull Wing 7  ±25ppm 0-70°C
Input Voltage
Code  Specification A  ±20ppm 0-70°C 
A     3.3V B  ±50ppm -40 to +85°C 
       5V C  ±100ppm -40 to +85°C
Tolerance/Performance
9  Customer Specific
 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