Filter
Top Products
Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
February 2007 HDD
Document Number: 305261, Revision: 004 107
DDR-SDRAM—Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
The simulation results in Figure 51 are for the RCVENIN/RCVENOUT circuit, the voltage
waveform meets the DDR device input voltage requirements. V
il(max)
of V
ref
– 0.150 or
1.10 V and V
ih(min)
of V
ref
+ 0.150 or 1.40 V are easily achieved at the receiver
(RCVENIN). The receiver waveform must also not exceed a maximum voltage of
V
in(max)
= 2.8 V or the minimum voltage of V
in(min)
= -0.3 V.
Figure 51. DDR RCVENIN/RCVENOUT Simulation Results (Rseries = 60 Ω)