Data Sheet 9235A
CRYSTAL CLOCK OSCILLATORS
Rev. N
Differential Positive ECL (DPECL)
HK-2900 Series
Description
The HK-2900 Series of quartz crystal oscillators provide DPECL Fast Edge compatible signals. This
device is to operate using positive voltage and uses multiple ground pins for improved signal integrity. This
device is intended to operate on positive voltage for PECL applications.
Features
• Wide frequency range–250.0MHz to 500.0MHz
• User specified tolerance available
• Case at electrical ground
• Overtone technology
• High Q Crystal actively tuned oscillator circuit
• Power supply decoupling internal
• Will withstand vapor phase temperatures of 253°C • Dual ground plane for added stability
for 4 minutes maximum
• All metal, resistance weld, hermetically sealed
package
• No internal PLL avoids cascading PLL problems
• High frequencies due to proprietary design
• RoHS Compliant, Lead Free Construction
• High shock resistance, to 1500g
• Low Jitter
Electrical Connection
Pin
Connection
1
2
6
VCC
VEE Case
VEE Case
Output
7
8
/Output
9
13
14
VEE Case
VEE Case
Enable/Disable
All dimensions expressed in Inches/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