Intel Q9400S Data Sheet - Page 34
Differential Clock Waveform, Measurement Points for Differential Clock
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Electrical Specifications . Figure 2-3. Differential Clock Waveform Threshold Region Tph BCLK1 VCROSS (ABS) VCROSS (ABS) Ringback Margin BCLK0 Tpl Tp Tp = T1: BCLK[1:0] period T2: BCLK[1:0] period stability (not shown) Tph = T3: BCLK[1:0] pulse high time Tpl = T4: BCLK[1:0] pulse low time T5: BCLK[1:0] rise time through the threshold region T6: BCLK[1:0] fall time through the threshold region Overshoot VH Rising Edge Ringback Falling Edge Ringback VL Undershoot Figure 2-4. Measurement Points for Differential Clock Waveforms +150 mV 0.0 V -150 mV Diff Slew_rise V_swing Slew _fall T5 = BCLK[1:0] rise and fall time through the swing region +150 mV 0.0V - 150 mV § 34 Datasheet
Electrical Specifications
34
Datasheet
.
ยง
Figure 2-3.
Differential Clock Waveform
Figure 2-4.
Measurement Points for Differential Clock Waveforms
Threshold
Region
VH
VL
Overshoot
Undershoot
Ringback
Margin
Rising Edge
Ringback
Falling Edge
Ringback
BCLK0
BCLK1
Tph
Tpl
Tp
Tp
= T1: BCLK[1:0] period
T2: BCLK[1:0] period stability (not shown)
Tph = T3: BCLK[1:0] pulse high time
Tpl = T4: BCLK[1:0] pulse low time
T5: BCLK[1:0] rise time through the threshold region
T6: BCLK[1:0] fall time through the threshold region
V
CROSS (ABS
)
V
CROSS (ABS
)
+150 mV
-150 mV
0.0V
0.0V
Slew_rise
+150mV
- 150 mV
V_swing
Slew _fall
Diff
T5 = BCLK[1:0] rise and fall time through the swing region