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ADCLK946

Analog Devices
Part Number ADCLK946
Manufacturer Analog Devices
Description SiGe Clock Fanout Buffer
Published Jul 1, 2009
Detailed Description www.DataSheet4U.com Six LVPECL Outputs, SiGe Clock Fanout Buffer ADCLK946 FUNCTIONAL BLOCK DIAGRAM ADCLK946 VREF VT CLK...
Datasheet PDF File ADCLK946 PDF File

ADCLK946
ADCLK946


Overview
www.
DataSheet4U.
com Six LVPECL Outputs, SiGe Clock Fanout Buffer ADCLK946 FUNCTIONAL BLOCK DIAGRAM ADCLK946 VREF VT CLK CLK REFERENCE LVPECL Q0 Q0 Q1 Q1 Q2 Q2 Q3 Q3 Q4 Q4 Q5 Q5 08053-001 FEATURES 4.
8 GHz operating frequency 75 fs rms broadband random jitter On-chip input terminations 3.
3 V power supply APPLICATIONS Low jitter clock distribution Clock and data signal restoration Level translation Wireless communications Wired communications Medical and industrial imaging ATE and high performance instrumentation GENERAL DESCRIPTION The ADCLK946 is an ultrafast clock fanout buffer fabricated on the Analog Devices, Inc.
, proprietary XFCB3 silicon germanium (SiGe) bipolar process.
This device is designed for high speed applications requiring low jitter.
The device has a differential input equipped with center-tapped, differential, 100 Ω on-chip termination resistors.
The input accepts dc-coupled LVPECL, CML, 3.
3 V CMOS (single ended), and ac-coupled 1.
8 V CMOS, LVDS, and LVPECL inputs.
A VREF pin is available for biasing ac-coupled inputs.
The ADCLK946 features six full-swing emitter-coupled logic (ECL) output drivers.
For LVPECL (positive ECL) operation, bias VCC to the positive supply and VEE to ground.
For ECL operation, bias VCC to ground and VEE to the negative supply.
The ECL output stages are designed to directly drive 800 mV each side into 50 Ω terminated to VCC − 2 V for a total differential output swing of 1.
6 V.
The ADCLK946 is available in a 24-lead LFCSP and is specified for operation over the standard industrial temperature range of −40°C to +85°C.
Figure 1.
Rev.
0 Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice.
No license is granted by implication or otherwise under any patent or patent rights of Analog ...



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