GS2974B GS2974B HD-LINX™ III Adaptive Cable

Equalizer

Data Sheet

45062 - 3

April 2009

3 of 17

Contents

Features.................................................................................................................................................................1

Applications.........................................................................................................................................................1

Description...........................................................................................................................................................1

Revision History .................................................................................................................................................2

1. Pin Out...............................................................................................................................................................4

1.1 GS2974B Pin Assignment ...............................................................................................................4

1.2 GS2974B Pin Descriptions .............................................................................................................4

2. Electrical Characteristics ............................................................................................................................6

2.1 Absolute Maximum Ratings ..........................................................................................................6

2.2 DC Electrical Characteristics ........................................................................................................6

2.3 AC Electrical Characteristics ........................................................................................................7

Test Circuit ...........................................................................................................................................................8

3. Input/Output Circuits ..................................................................................................................................8

4. Detailed Description.....................................................................................................................................9

4.1 Serial Digital Inputs .........................................................................................................................9

4.2 Cable Equalization ........................................................................................................................ 10

4.3 Programmable Maximum Cable Length Adjust (MCLADJ) ............................................. 10

4.4 Mute and Carrier Detect .............................................................................................................. 11

5. Application Information .......................................................................................................................... 12

5.1 High Gain Adaptive Cable Equalizers .................................................................................... 12

5.2 PCB Layout ....................................................................................................................................... 12

5.3 Typical Application Circuit ........................................................................................................ 13

6. Package & Ordering Information .......................................................................................................... 14

6.1 Package Dimensions ..................................................................................................................... 14

6.2 Packaging Data ............................................................................................................................... 14

6.3 Recommended PCB Footprint ................................................................................................... 15

6.4 Marking Diagram ........................................................................................................................... 15

6.5 Solder Reflow Profiles .................................................................................................................. 16

6.6 Ordering Information ................................................................................................................... 16