186 Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families
Datasheet Volume One
the overshoot specification, when you add the total impact of all overshoot events, the
system may fail. A guideline to ensure a system passes the overshoot and undershoot
specifications is shown below.
1. If only one overshoot/undershoot event magnitude occurs, ensure it meets the
over/undershoot specifications in the following tables, OR
2. If multiple overshoots and/or multiple undershoots occur, measure the worst case
pulse duration for each magnitude and compare the results against the AF = 0.1
specifications. If all of these worst case overshoot or undershoot events meet the
specifications (measured time < specifications) in the table (where AF= 0.1), then
the system passes.
§
Table 7-25. Processor Sideband Signal Group Overshoot/Undershoot Tolerance
Absolute Maximum Overshoot
(V)
Absolute Maximum Undershoot (V)
Pulse Duration (ns)
AF=0.1
Pulse Duration (ns)
AF=0.01
1.3335 V 0.2835 V 3 ns 5 ns
1.2600 V 0.210 V 5 ns 5 ns
Figure 7-11. Maximum Acceptable Overshoot/Undershoot Waveform
V
SS
Over Shoot
Under Shoot
Over Shoot
Duration
Under Shoot
Duration