GS2989 Datasheet, PDF (3/19 Pages) Gennum Corporation – Dual-Slew-Rate, Dual-Output Cable Driver with 3Gb/s Capability

Contents
Features ................................................................................................................................................................. 1
Applications.........................................................................................................................................................1
Description ........................................................................................................................................................... 1
Revision History .................................................................................................................................................2
1. Pin Out...............................................................................................................................................................4
1.1 Pin Assignment ..................................................................................................................................4
1.2 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
3. Input/Output Circuits ..................................................................................................................................9
4. Detailed Description.................................................................................................................................. 10
4.1 Serial Data Input ............................................................................................................................ 10
4.2 Input Trace-equalization ............................................................................................................. 10
4.3 Serial Data Output ......................................................................................................................... 10
4.3.1 Slew Rate Selection (Rise/Fall Time Requirement)................................................. 10
4.4 Output Disable ................................................................................................................................ 11
4.5 Output Signal Presence Indicator (OSP) ................................................................................. 11
4.6 Output Amplitude (RSET) ........................................................................................................... 12
4.7 Output Return Loss Measurement ........................................................................................... 13
5. Application Information .......................................................................................................................... 14
5.1 PCB Layout ....................................................................................................................................... 14
5.2 Typical Application Circuit ........................................................................................................ 15
6. Package & Ordering Information .......................................................................................................... 16
6.1 Package Dimensions ..................................................................................................................... 16
6.2 Recommended PCB Footprint ................................................................................................... 17
6.3 Packaging Data ............................................................................................................................... 17
6.4 Solder Reflow Profiles .................................................................................................................. 18
6.5 Marking Diagram ........................................................................................................................... 18
6.6 Ordering Information ................................................................................................................... 19
GS2989 Dual-Slew-Rate, Dual-Output Cable Driver
with 3Gb/s Capability
Data Sheet
52133 - 4
December 2010
3 of 19