SD2987 NEL Frequency Controls, SD2987 Datasheet
SD2987
Manufacturer Part Number
SD2987
Description
5 V, ±25 ppm, differential positive ECL crystal clock oscillator
Manufacturer
NEL Frequency Controls
Datasheet
1.SD2987.pdf
(2 pages)
Description
The SD-A2980 Series of quartz crystal oscillators provide DPECL compatible signals. Systems designers
may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing requirements.
Features
• Wide frequency range–100.0MHz to 160.0MHz
• User specified tolerance available
• Will withstand vapor phase temperatures of 253°C
• Space-saving alternative to discrete component
• High shock resistance, to 1000g
• 3.3 volt operation
Electrical Connection
Pin
1
2
3
4
5
6
oscillators
for 4 minutes maximum
Enable/Disable
/Output
N.C.
V
Output
V
Connection
EE
CC
/Ground
CRYSTAL CLOCK OSCILLATORS
Differential Positive ECL (DPECL)
SD-A2980 Series
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
PRELIMINARY
• Wavecrest jitter characterization available
• Overtone technology
• High Q Crystal actively tuned oscillator circuit
• No internal PLL avoids cascading PLL problems
• Metal lid electrically connected to ground to
• Gold plated pads
reduce EMI
Email:
Data Sheet 0244A
nelsales@nelfc.com
Rev. B
www.nelfc.com
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SD2987 Summary of contents
Page 1
CRYSTAL CLOCK OSCILLATORS Differential Positive ECL (DPECL) SD-A2980 Series Description The SD-A2980 Series of quartz crystal oscillators provide DPECL compatible signals. Systems designers may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing requirements. Features • Wide frequency ...
Page 2
CRYSTAL CLOCK OSCILLATORS Continued SD-A2980 Series Differential Positive ECL (DPECL) Operating Conditions and Output Characteristics Electrical Characteristics Parameter Symbol Frequency ----- Duty Cycle ----- Logic 0 ( (2) Logic Rise & Fall Time tr,tf (3) ...