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SR-A29B0

Part Number	SR-A29B0
Manufacturer	NEL
Description	DPECL
Published	Nov 17, 2006
Detailed Description	www.DataSheet4U.com SR-A29B0 Series Differential Positive ECL (DPECL) SR-A29B0 Series Rev G Frequency Range: 250.0 MHz...
Datasheet	SR-A29B0 PDF File

Overview

www.
DataSheet4U.
com SR-A29B0 Series Differential Positive ECL (DPECL) SR-A29B0 Series Rev G Frequency Range: 250.
0 MHz-1.
7 GHz Description The SR-A29B0 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.
Size, mm 9 x 14 Features • Wide frequency range – 250.
0MHz to 1.
7GHz • User specified tolerance available • Will withstand SMD reflow temperatures of 183°C for 4 minutes maximum • High shock resistance, to 1000g I/O 8 pad Supply Voltage 3.
3V / 2.
5V • Patent Pending, harmonic multiplication for extremely low jitter • High frequency output eliminates the need for PLL multiplication • Stabilities over temperatures as low as ±20ppm eliminates SAW oscillator temperature problems • High Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions • Cover connected to ground • 3.
3V and 2.
5V versions available Creating a Part Number SR - A29BX - FREQ Package Code SR 8 pad 9x14 mm SMD Input Voltage Code Specification A 3.
3 V B 2.
5 V Tolerance/Performance 0 ±100 ppm 0-70°C 1 ±50 ppm 0-70°C 7 ±25 ppm 0-70°C 9 Customer Specific A ±20 ppm 0-70°C B ±50 ppm -40 to +85°C C ±100 ppm -40 to +85°C Drawing Specifications For the most up to date specifications on each NEL product, log on to our website—www.
nelfc.
com Electrical Connections Pin Connection 1 VCC 2 Ground 3 NC or Ground 4 Q Output 5 /Q Output 6 Ground 7 Ground 8 Enable Recommended Board Layout Dimensions shown in inches (mm).
The metallic center pad was designed for mechanical support.
Grounding of this pad is optional.
It measures 0.
088 x 0.
190 NOM (2.
24 x 4.
83 NOM).
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 Differential Positive ECL (DPECL) SR-A29B0 Seri...

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