CRYSTAL CLOCK OSCILLATORS
TTL
Data Sheet 9225A
Rev. U
HS-1520 Series
Description
The
HS-1520 Series
of quartz crystal oscillators provide enable/disable 3-state TTL compatible signals for
bus connected systems. Supplying Pin 1 of the HS-1520 units with a logic “1" enables its output on Pin 8.
In the disabled mode, Pin 8 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 85.0MHz
• 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
Electrical Connection
Pin
1
7
8
14
Connection
Enable Input
Grd & Case
Output
V
CC
• 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
• RoHS Compliant, Lead Free Construction
(unless solder dipped leads are supplied)
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
HS-1520
TTL
Continued
Data Sheet 9225A
Rev. U
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
-----
-----
V
OL
V
OH
tr,tf
-----
-----
dF/F
Conditions
-----
@ V
CC
/2
@ 16mA
@ 0.4mA
@ 0.4 to 2.4V
<40MHz
40MHz or greater
-----
<40MHz OT & >40MHz
<40MHz Fund
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
Min
0.5MHz
40/60%
-----
2.4V
-----
-----
-----
-----
-----
-100ppm
Typical
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
Max
85.0MHz
60/40%
0.4V
-----
8 ns
5 ns
25 ns
5 psec
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
CC
I
CC
I
O
T
A
T
S
P
D
T
L
----
t
S
Conditions
-----
No Load
-----
-----
-----
-----
Soldering, 10 sec.
-----
<20MHz
20MHz or greater
Min
4.75V
0.0 mA
0.0 mA
0°C
-55°C
-----
-----
-----
-----
-----
Typical
5.0V
-----
-----
-----
-----
-----
-----
-----
-----
-----
Max
5.25V
50 mA
±16.0 mA
70°C
125°C
263 mW
300°C
10TTL gate
2 ms
10 ms
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 55Hz to 2000 Hz
300°C for 10 seconds
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.
RMS jitter bandwidth of 12kHz to 20MHz.
Test Load:
Creating a Part Number
HS - X152X - FREQ
Package Code
HS Leaded 4 pin (14 pin)
SM Leaded 4 pin (14 pin) SMD
Gull Wing
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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