ETC PJ-A2960SERIES

CRYSTAL CLOCK OSCILLATORS
Differential Positive ECL (DPECL)
Fast Edge
Data Sheet 0237A
Rev. -
PJ-A2960 Series
PRELIMINARY
Description
The PJ-A2960 Series of quartz crystal oscillators provide DPECL Fast Edge compatible signals. Systems
designers may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing
requirements.
Features
• Wide frequency range–125.0MHz to 312.5MHz
• 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 1000g
• 3.3 volt operation
• Metal lid electrically connected to ground to
reduce EMI
• Fast rise and fall times <600 ps
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Low Jitter - Wavecrest jitter characterization
available
• Overtone technology
• 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 pads
Electrical Connection
Pin
Connection
1
2
3
4
5
6
Enable/Disable
N.C.
VEE /Ground
Output
/Output
VCC
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
Data Sheet 0237A
CRYSTAL CLOCK OSCILLATORS
Rev. -
PJ-A2960 Series Continued
Differential Positive ECL (DPECL) Fast Edge
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)
Enable Voltage(5)
Disable Voltage
Frequency Stability (1)
Symbol
Conditions
Min
--------125.0MHz
45/55%
----@ VCC-1.29V
VOL
----1.35V
VOH
----2.28V
tr,tf 20-80%VO with 50 ohm load to VCC-2V -------------200 psec
----------------with VEE = 0V
0V
3.0V
----with VEE = 0V
dF/F
Overall conditions including:
-100ppm
voltage, calibration, temp.,
10 yr aging, shock, vibration
Typical
-----------------------------------------
Max
312.5MHz
55/45%
1.70V
2.56V
600 psec
+200 psec
3 psec
1.0V
VCC
+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
TS
-----55°C
--------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
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) VOL, VOH, referenced to ground (VEE) with VCC = 3.3V
3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
4) Tpd is phse shift between the falling edge of pin 4 at 2.0V and the rising edge of pin 5 at 2.01V.
5) Open to enable pin also enables the output.
Creating a Part Number
PJ - A296X - FREQ
Package Code
PJ 6 J Lead SMD
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