Xilinx ML561 manual UG199c753070907

Models: ML561

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R

Signal Integrity Correlation Results

 

1800.0

 

 

 

 

 

1600.0

 

 

 

 

 

1400.0

 

 

 

 

 

1200.0

 

 

 

 

(mV)

1000.0

 

 

 

 

 

 

 

 

 

Voltage

800.0

 

 

 

 

600.0

 

 

 

 

 

 

 

 

 

 

400.0

 

 

 

 

 

200.0

 

 

 

 

 

0.000

 

Probe 6:U34.G33 (at die)

 

 

-200.0

 

 

 

 

 

1000.0

1400.0

1800.0

2200.0

2600.0

Time (ps)

UG199_c7_53_070907

300 MHz, Slow, PRBS6, 88% UI

Cursor 1: 1.1008V, 1.2758 ns

Cursor 2: 998.9 mV, 2.7352 ns

Delta Voltage = 101.9 mV, Delta Time = 1.4594 ns (88% UI)

Figure 7-53:QDRII Read Extrapolation - Eye Scope Shot at Receiver IOB (Slow Corner)

 

1900.0

 

 

 

 

 

1700.0

 

 

 

 

 

1500.0

 

 

 

 

 

1300.0

 

 

 

 

(mV)

1100.0

 

 

 

 

 

 

 

 

 

Voltage

900.0

 

 

 

 

700.0

 

 

 

 

 

 

 

 

 

 

500.0

 

 

 

 

 

300.0

 

 

 

 

 

100.0

Probe 6:U34.G33 (at die)

 

 

 

-100.0

 

 

 

 

 

30.000

40.000

50.000

60.000

70.000

 

 

 

Time (ns)

 

UG199_c7_54_071007

 

 

 

 

 

Figure 7-54:QDRII Read Extrapolation - Waveform Scope Shot at Receiver IOB (Slow Corner

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

89

UG199 (v1.2) April 19, 2008

Page 89
Image 89
Xilinx ML561 manual UG199c753070907