Xilinx ML561 manual 3100.0 2600.0 2100.0 1600.0 1100.0

Models: ML561

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R

Signal Integrity Correlation Results

 

3100.0

 

 

 

 

 

 

2600.0

 

 

 

 

 

 

2100.0

 

 

 

 

 

 

1600.0

 

 

 

 

 

(mV)

1100.0

 

 

 

 

 

 

 

 

 

 

 

Voltage

600.0

 

 

 

 

 

100.0

 

 

 

 

 

 

 

 

 

 

 

 

-400.0

 

 

 

 

 

 

-900.0

 

 

 

 

 

 

-1400.0

 

Probe 6:U35.G11 (at die)

 

 

 

 

 

 

 

 

 

-1900.0

 

 

 

 

 

 

800.0

1200.0

1600.0

2000.0

2400.0

2800.0

Time (ps)

UG199_c7_46_070907

300 MHz, Fast, PRBS6, 89% UI

Cursor 1: 699.1 mV, 1.1440 ns

Cursor 2: 801.0 mV, 2.6334 ns

Delta Voltage = 101.9 mV, Delta Time = 1.4894 ns (89% UI)

Figure 7-46:QDRII Write Extrapolation - Eye Scope Shot at Receiver IOB (Fast Corner)

 

3400.0

 

 

 

 

 

 

2900.0

 

 

 

 

 

 

2400.0

 

 

 

 

 

 

1900.0

 

 

 

 

 

(mV)

1400.0

 

 

 

 

 

 

 

 

 

 

 

Voltage

900.0

 

 

 

 

 

400.0

 

 

 

 

 

 

 

 

 

 

 

 

-100.0

 

 

 

 

 

 

-600.0

 

 

 

 

 

 

-1100.0

 

Probe 6:U35.G11 (at die)

 

 

 

-1600.0

 

 

 

 

 

 

110.000

120.000

130.000

140.000

150.000

160.000

Time (ns)

UG199_c7_47_070907

Figure 7-47:QDRII Write Extrapolation - Waveform Scope Shot at Receiver IOB (Fast Corner)

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

85

UG199 (v1.2) April 19, 2008

Page 85
Image 85
Xilinx ML561 manual 3100.0 2600.0 2100.0 1600.0 1100.0