Specifications

8
Page 15
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Simulated Eye Diagram of Measured Connector
Differential, true/compliment skew +/- 50 ps
• Eye opening on left-side is
smaller than on right-side of
crossing point for –50, -40, -
30ps.
• Jitter is higher for – 50, -40
and -30 ps eyes
• Slope of rise is shallower for
+ and – 50 ps eyes
• Eye opening is balanced and
and rise is faster for 0, +10 and
+20ps
• Physical line added to board
to adjust delay based on these
results
Page 16
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Typical SI Problem
IBIS or Spice model
Pattern
Generator
Pre-emphasis / Driver
Encoder
Decoder
Receiver
Equalizer
Physical Channel
Board Traces 2” (51mm) – 10” (254mm)
Card
Card
Package
Die
Package
Die
Driver
Receiver
Card
High speed Connectors
IBIS or Spice model
Backplane Traces
10” (254mm) – 40” (1016mm)
Physical Channel
Channel Adaptation
Signal Recovery