357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881

www.nelfc.com

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

• Will withstand vapor phase temperatures of 253°C

for 4 minutes maximum

• All metal, resistance weld, hermetically sealed

package

• High shock resistance, to 1500g

• Low Jitter

• Overtone technology

• High Q Crystal actively tuned oscillator circuit

• Power supply decoupling internal

• Dual ground plane for added stability

• No internal PLL avoids cascading PLL problems

• High frequencies due to proprietary design

• RoHS Compliant, Lead Free Construction

Electrical Connection

Pin

Connection

1

V

CC

2

V

6

V

7

Output

8

/Output

9

V

13

V

14

Enable/Disable

All dimensions expressed in Inches/MM

CRYSTAL CLOCK OSCILLATORS

Data Sheet 9235A

Rev. N