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GS4915-INE3 Datasheet(PDF) 3 Page - Gennum Corporation

No. de Pieza. GS4915-INE3
Descripción  ClockCleaner™
Descarga  26 Pages
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Fabricante  GENNUM [Gennum Corporation]
Página de inicio  http://www.gennum.com
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GS4915-INE3 Datasheet(HTML) 3 Page - Gennum Corporation

 
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GS4915 Data Sheet
39145 - 3
November 2007
3 of 26
Contents
Key Features.................................................................................................................1
Applications...................................................................................................................1
Description ....................................................................................................................1
Functional Block Diagram .............................................................................................2
1. Pin Out ......................................................................................................................4
1.1 Pin Assignment ...............................................................................................4
1.2 Pin Descriptions ..............................................................................................5
2. Electrical Characteristics...........................................................................................8
2.1 Absolute Maximum Ratings ............................................................................8
2.2 DC Electrical Characteristics ..........................................................................8
2.3 AC Electrical Characteristics .........................................................................10
2.4 Solder Reflow Profiles ...................................................................................11
3. Detailed Description ................................................................................................12
3.1 Functional Overview .....................................................................................12
3.2 Clock Inputs ..................................................................................................12
3.2.1 Differential Clock Input.........................................................................13
3.2.2 Single-Ended Clock Input ....................................................................13
3.2.3 Input Clock Selection ...........................................................................13
3.2.4 Unused Clock Inputs............................................................................13
3.3 Clock Cleaning PLL ......................................................................................13
3.3.1 Phase Detector ....................................................................................14
3.3.2 Charge Pump.......................................................................................14
3.3.3 Loop Filter............................................................................................14
3.3.4 External VCO.......................................................................................15
3.4 Modes of Operation ......................................................................................15
3.4.1 Frequency Modes ................................................................................15
3.4.2 Bypass Modes .....................................................................................17
3.5 Output Clock Frequency and Jitter ...............................................................18
3.6 Output Skew .................................................................................................20
3.7 Clock Outputs ...............................................................................................21
3.7.1 Differential Clock Output......................................................................21
3.7.2 Single-Ended Clock Output .................................................................21
3.8 Device Reset .................................................................................................21
3.8.1 Hardware Reset...................................................................................21
4. Typical Application Circuit .......................................................................................22
5. References & Relevant Standards..........................................................................23
6. Package & Ordering Information.............................................................................24
6.1 Package Dimensions ....................................................................................24
6.2 Recommended PCB Footprint ......................................................................25
6.3 Packaging Data .............................................................................................25
6.4 Ordering Information .....................................................................................25
7. Revision History ......................................................................................................26


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