NEL SM-A2879-FREQ

CRYSTAL CLOCK OSCILLATORS
Differential Positive ECL (DPECL)
Data Sheet 9544B
Rev. T
HS-A2870 Series
Description
The HS-A2870 Series of quartz crystal oscillators provide MECL 10K and 10KH series compatible signals
in industry standard four-pin DIP hermetic package. Systems designers may now specify space-saving,
cost-effective packaged PECL oscillators to meet their timing requirements. This device is intended to
operate on positive voltage for PECL applications.
Features
• Wide frequency range–15.0MHz to 250.0MHz
• 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
• 3.3 Volt operation
• Metal lid electrically connected to ground to
reduce EMI
• Low Jitter
• MECL 10K and 10KH series compatible output on
Pin 8, complement on Pin 1
• High Q Crystal actively tuned oscillator circuit
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• High frequencies due to proprietary design
• Gold plated leads - Solder dipped leads available
upon request
• RoHS Compliant, Lead Free Construction
(unless solder dipped leads are supplied)
Electrical Connection
Pin
1
7
8
14
Connection
Output Complement
VEE /Ground
Output
VCC
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: [email protected] www.nelfc.com
CRYSTAL CLOCK OSCILLATORS
Data Sheet 9544B
Rev. T
HS-A2870 Series Continued
Differential Positive ECL (DPECL)
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Frequency
Duty Cycle
Logic 0 (2)
Logic 1(2)
Rise & Fall Time
Tpd (4)
Jitter, RMS(3)
Frequency Stability (1)
Symbol
Conditions
Min
--------15.0MHz
45/55%
[email protected]
VOL
----VCC-1.95V
VOH
----VCC-1.02V
tr,tf 20-80%VO with 50 ohm load to VCC-2V -------------0.5 ns
------------dF/F
Overall conditions including:
-100ppm
voltage, calibration, temp.,
10 yr aging, shock, vibration
Typical
----------------1.0 ns
-------------
Max
250.0MHz
55/45%
VCC-1.60V
VCC-0.74V
1.5 ns
+0.5 ns
5 psec
+100ppm
Typical
3.3V
-----
Max
3.45V
80 mA
---------------------
±50.0 mA
70°C
125°C
276 mW
300°C
2 ms
10 ms
General Characteristics
Parameter
Supply Voltage
Supply Current
Symbol
VCC
ICC
Output current
Operating temperature
Storage temperature
Power Dissipation
Lead temperature
Load
Start-up time
Conditions
Min
----3.15V
50 ohm termination
0.0 mA
To 2.00V below VCC
IO
Low level Output Current 0.0 mA
TA
-----0°C
-----55°C
TS
--------PD
TL
Soldering, 10 sec.
----50 Ohm to VCC-2V or Thevenin Equivalent, Bias Required
--------tS
Environmental and Mechanical Characteristics
Mechanical Shock
Thermal Shock
Vibration
Soldering Condition
Hermetic Seal
ESD Sensitivity
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
Human Body Model per ON Semiconductor 10kH series ECL: 500V min.
Footnotes:
1) Standard frequency stability (±20,±25,±50ppm & others available)
2) VOL, VOH, referenced to ground (VEE) with VCC = 3.3V
3) Jitter performance is frequency dependent. Please contact factory for full characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
4) Tpd is phase shift between the falling edge of pin 8 at VCC-1.29V and rising edge of pin 1 at VCC-1.29V.
Creating a Part Number
HS - A287X - 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: [email protected] www.nelfc.com