Analog Power Supply Pins

Versal Adaptive SoC GTM Transceivers Architecture Manual (AM017)
Document ID
AM017
Release Date
2024-09-05
Revision
1.1 English

The GTM transceiver Quad analog power supplies (GTM_AVCC, GTM_AVTT, and GTM_AVCCAUX) have planes inside the package. For some of the packages, there are multiple planes for each analog power supply. The analog power supplies for the transceivers are organized into power supply groups, PSG. Each PSG has a set of power planes. One power plane for each of the transceiver analog power supplies. If there is more than one PSG in the package, the power supply pin names have a suffix (such as _LN, _RN, _LS or _RS) that identifies which pins are associated with which PSG. If all the Quads in a PSG are not used, the associated power pins can be left unconnected or tied to GND. The rules for powering PSGs are as follows:

  • Within a package PSG, if no Quads are used, the PSG can be unpowered.
  • If any Quads in a PSG are used, the PSG must be powered.
  • PSGs on each side (Left or Right) of the package are fully independent. Powering or not powering PSGs on one side of the package does not affect the PSGs on the other sides of the package.
  • If a PSG does not have an RCAL master and it is powered, all the PSGs on that side (left or right) of the package must be powered.
  • If a PSG with an RCAL master is unpowered, any PSG without an RCAL master on that side of the package must also be unpowered.
  • A PSG that does not have an RCAL master can be unpowered without affecting other PSGs.
For each GTM transceiver analog power supply group there are three power supplies (GTM_AVCC, GTM_AVTT, and GTM_AVCCAUX). For example, if there are two PSGs in a package, there are a total of six power supply planes in the package for these groups, with three planes in the package for each PSG. The following table shows the power supply groups for Versal adaptive SoCs.
Note: Refer to Versal Adaptive SoC Packaging and Pinouts Architecture Manual (AM013) for details on the specific package die information.
Table 1. GTM Transceiver Power Supply Groups and RCAL Master by Package
Device GTM Transceiver
109 110 111 112 115 116 117 118 121 122 123 124 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
VM1402VD1760                                                                      
VP1202VA2785                         LC LC RCL LC LC LN                                    
VP1502VA2785 RN RN RCL RN RN                 LC LC RCL LC LC   LN LN RCL LN LN LN LN                        
VP1502VA3340 RN RN RCL RN RN                 LLC LLC RCL LLC LLC LLC LN LN RCL LN LN LN LN                        
VP1702VA3340 RUC RUC RCL RUC RUC RN RN RCL RN RN         LLC LLC RCL LLC LLC LLC LUC LUC RCL LUC       LN LN RCL LN LN LN LN            
VP1802VC4072 RC RC RCL RC RC RUC RUC RCL RUC RUC RN RN RCL RN RN LLC LLC RCL LLC LLC LLC LC LC RCL LC LC LC LC LUC LUC RCL LUC LUC LUC LUC LN LN RCL LN LN LN LN
  1. In each cell, the top row is the power supply group designator. If the second row contains RCL, that Quad is an RCAL master.