GS2993 Dual Output Adaptive Cable Equalizer

Data Sheet

53966 - 4

August 2012

3 of 23

Propietary & Confidential

Contents

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

1.1 GS2993 Pin Assignment .................................................................................................................4

1.2 GS2993 Pin Descriptions ................................................................................................................4

2. Electrical Characteristics ............................................................................................................................7

2.1 Absolute Maximum Ratings ..........................................................................................................7

2.2 DC Electrical Characteristics ........................................................................................................7

2.3 AC Electrical Characteristics ........................................................................................................9

3. Input/Output Circuits ............................................................................................................................... 11

4. Detailed Description.................................................................................................................................. 13

4.1 Serial Data Inputs .......................................................................................................................... 13

4.2 Cable Equalization ........................................................................................................................ 13

4.3 Serial Digital Outputs ................................................................................................................... 13

4.4 Programmable Squelch Adjust (SQ_ADJ) .............................................................................. 14

4.5 Carrier Detect, Sleep, and Auto-Sleep .................................................................................... 15

4.6 GAIN_SEL ......................................................................................................................................... 16

4.7 Adjustable Output Swing, De-Emphasis and Mute ............................................................ 16

4.8 Cable Length Indicator (CLI) ...................................................................................................... 17

5. Application Information .......................................................................................................................... 18

5.1 High Gain Adaptive Cable Equalizers .................................................................................... 18

5.2 PCB Layout ....................................................................................................................................... 18

5.3 Typical Application Circuit ........................................................................................................ 19

6. Package & Ordering Information .......................................................................................................... 20

6.1 Package Dimensions ..................................................................................................................... 20

6.2 Packaging Data ............................................................................................................................... 20

6.3 Recommended PCB Footprint ................................................................................................... 21

6.4 Marking Diagram ........................................................................................................................... 21

6.5 Solder Reflow Profiles .................................................................................................................. 22

6.6 Ordering Information ................................................................................................................... 22