GX4002 Datasheet, PDF (4/74 Pages) Gennum Corporation – Dynamic on-chip power management control

3.3.4 Pre-Emphasis Driver with Auto-Mute........................................................................ 21
3.3.5 Channel 1 Output Polarity Invert................................................................................. 22
3.4 Crosspoint ........................................................................................................................................ 23
3.5 Status Indicators ............................................................................................................................ 27
3.5.1 Ch0 Loss Of Signal (LOS) ................................................................................................. 27
3.5.2 Ch1 Loss Of Signal............................................................................................................. 29
3.5.3 Loss Of Lock (LOL)............................................................................................................. 32
3.5.4 Ch0FAULT - Channel 0 Fault......................................................................................... 33
3.6 Test Features ................................................................................................................................... 33
3.6.1 PRBS Generator and Checker........................................................................................ 34
3.6.2 Eye Monitor & Peak Detector......................................................................................... 36
3.7 Digital Diagnostics ........................................................................................................................ 38
3.7.1 Analog to Digital Converter (ADC) .............................................................................. 38
3.8 Power Control Options ................................................................................................................ 48
3.9 Device Reset .................................................................................................................................... 49
3.9.1 Reset State During Power-up......................................................................................... 49
3.9.2 RESET Timing...................................................................................................................... 50
3.9.3 I/O and Register States During and After Reset ...................................................... 51
3.10 Digital Control Interface ........................................................................................................... 51
3.10.1 I²C Host Interface Mode................................................................................................ 51
4. Typical Application Circuit ..................................................................................................................... 53
4.1 Power Supply Filter Recommendations ................................................................................ 53
4.2 Power Supply Domains ............................................................................................................... 54
5. Layout Considerations.............................................................................................................................. 55
6. Input/Output Equivalent Circuits......................................................................................................... 56
7. Package and Ordering Information...................................................................................................... 59
7.1 Package Dimensions ..................................................................................................................... 59
7.2 Recommended PCB Footprint ................................................................................................... 59
7.3 Packaging Data ............................................................................................................................... 60
7.4 Solder Reflow Profile .................................................................................................................... 60
7.5 Marking Diagram ........................................................................................................................... 61
7.6 Ordering Information ................................................................................................................... 61
GX4002 2x2 14.025Gb/s Crosspoint Switch with Trace
Equalization and Output De-Emphasis
Data Sheet
55972 - 0
March 2012
4 of 74
Proprietary & Confidential