Signal integrity correlation results – Xilinx Virtex-5 FPGA ML561 User Manual

Page 69

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Virtex-5 FPGA ML561 User Guide

www.xilinx.com

69

UG199 (v1.2.1) June 15, 2009

Signal Integrity Correlation Results

R

Figure 7-19:

DDR2 Component Read Extrapolation - Eye Scope Shot at Receiver IOB (Fast Corner)

800.0

1200.0

1600.0

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2400.0

2800.0

-100.0

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UG199_c7_19_071007

Time (ps)

Voltage (mV)

Probe 1:U7.P25 (at die)

333 MHz, Fast, PRBS6, 88% UI

Cursor 1: 701.2 mV, 1.0772 ns

Cursor 2: 774.6 mV, 2.3980 ns

Delta Voltage = 73.4 mV, Delta Time = 1.3208 ns (88% UI)

Figure 7-20:

DDR2 Component Read Extrapolation - Waveform Scope Shot at Receiver IOB (Fast Corner)

65.000

75.000

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95.000

105.000

-100.0

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UG199_c7_20_071007

Time (ns)

Voltage (mV)

Probe 1:U7.P25 (at die)

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