UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 44391

Kintex-7 - Small Leakage Path Might Exist between a Differential Pair when Vin Levels Exceed Data Sheet Recommended Operating Conditions

Description

When operating with an input voltage that exceeds the Input Voltagespecification (Vin) for a Kintex-7 device, there is a small leakage path from the P to N pin regardless of how the pair is configured.

Solution

The user I/O pins for Kintex-7 can be used as differential pin pairs. Between the two pins of every differential pin pair, there is a programmable circuit that behaves like a differential termination resistor. This circuit can be enabled in differential signaling applications using the DIFF_TERM attribute, but is otherwise disabled. When one pin of a differential pair interfaces with voltages that fall outside the Vin specification from the recommended operating conditions of the family data sheet, there can be a small amount of leakage between the pair regardless of the configuration of the I/Os. If operating within the data sheet specifications, the Pin Leakage (IL) does not violate the specification.
AR# 44391
Date Created 10/04/2011
Last Updated 12/15/2012
Status Active
Type General Article
Devices
  • Kintex-7