NELFC HS420, HS421, HS427, HS429, HS42A Datasheet
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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
CMOS
HS-420 Series
Description
The HS-420 Series of quartz crystal oscillators 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–244.0Hz to 625.0kHz
• 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
• Capable of driving 3TTL Loads
• Low Jitter
• High Q Crystal actively tuned oscillator circuit
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• Gold plated leads - Solder dipped leads available
upon request
Electrical Connection
Pin Connection
1 N.C.
7 Grd & Case
8 Output
14 V
DD
CRYSTAL CLOCK OSCILLATORS
Data Sheet 9344A
Rev. J
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
HS-420 Series Continued
CMOS
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter Symbol Conditions Min Typical Max
Frequency ----- ----- 244.0Hz ----- 625kHz
Duty Cycle ----- @ VDD/2 45/55% ----- 55/45%
Logic 0 VOL @ 600µA ----- ----- 0.2V
Logic 1 VOH @ 600µA VDD-0.2V ----- ----Rise & Fall Time tr,tf 10-90%V
O
----- 7 ns 30 ns
Jitter, RMS
(2)
----- ----- ----- ----- 8 psec
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 VDD ----- 4.5V 5.0V 5.5V
Supply Current IDD No Load 0.0 mA ----- 9.5 mA
Output current IO ----- 0.0 mA ----- ±25.0 mA
Operating temperature TA ----- 0°C ----- 70°C
Storage temperature TS ----- -55°C ----- 125°C
Power Dissipation P
D
----- ----- ----- 53 mW
Lead temperature TL Soldering, 10 sec. ----- ----- 300°C
Load ----- ----- ----- ----- 15pf
Start-up Time t
s
----- ----- 1 ms 5 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:
Rev. J
CRYSTAL CLOCK OSCILLATORS
HS - A42X - FREQ
Package Code
Tolerance/Performance
HS Leaded 4 pin (14 pin) 0 ±100ppm 0-70°C
SM Leaded 4 pin (14 pin) SMD 1 ±50ppm 0-70°C
Gull Wing 7 ±25ppm 0-70°C
Input Voltage
9 Customer Specific
Code Specification A ±20ppm 0-70°C
A 3.3V B ±50ppm -40 to +85°C
5V C ±100ppm -40 to +85°C
Creating a Part Number
Data Sheet 9344A
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