Intel L5618 AT80614005079AB Manuale Utente

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AT80614005079AB
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Intel
®
 Xeon
®
 Processor 5600 Series Datasheet Volume 1
47
Electrical Specifications
Notes:
1.
Refers to routing lengths of 10 - 15 inches (25.4 - 38.1 cm).
2.
Refers to routing lengths of 0 - 10 inches (0 - 25.4 cm).
2.8
AC Specifications
AC specifications are defined at the processor pads, unless otherwise noted. 
Therefore, proper simulation is the only means to verify proper timing and signal 
quality. Care should be taken to read all notes associated with each parameter.
Table 2-21. Parameter Values for Intel QuickPath Interconnect Channel at 5.86 or 
6.4 GT/s
Symbol
Parameter
Min
Max
Unit
Note
V
Tx-diff-pp-pin
Transmitter differential swing
800
1400
mV
V
Tx-cm-dc-pin
Transmitter output DC common mode, defined as 
average of V
D+
 and V
D–
. Use setup of 
0.23
0.27
Fraction of 
V
TX-diff-pp-pin
V
Tx-cm-ac-pin
Transmitter output AC common mode, defined as 
((V
D+
 + V
D–
)/2 - V
TX-cm-dc-pin
). Use setup of 
 an
 for illustration of AC 
common mode distribution and spec limits.
–0.0375
0.0375
Fraction of 
V
TX-diff-pp-pin
TX
duty-pin
Average of UI-UI jitter, using setup of 
This appears as bimodal peaks in UI-UI jitter 
distribution 
-0.078
0.078
UI
TX
jitUI-UI-1E-7pin
UI-UI jitter measured at Tx output pins with 1E-7 
probability, using setup of 
. Refer to 
 for illustration of UI-UI jitter distribution 
and spec limits
-0.088
0.088
UI
TX
jitUI-UI-1E-9pin
UI-UI jitter measured at Tx output pins with 1E-9 
probability, using setup of 
. Refer to 
 for illustration of UI-UI jitter distribution 
and spec limits.
-0.095
0.095
UI
TX
clk-acc-jit-N_UI-1E-7
P-P accumulated jitter out of any Tx data or clock 
over 0 <= n <= N UI where N=12, measured with 
1E-7 probability. Refer to 
 for illustration
0
0.15
UI
TX
clk-acc-jit-N_UI-1E-9
P-P accumulated jitter out of any Tx data or clock 
over 0 <= n <= N UI where N=12, measured with 
1E-9 probability. Refer to 
 for illustration
0
0.17
UI
T
Tx-data-clk-skew-pin
Delay of any data lane relative to clock lane, as 
measured at Tx output
-0.4
0.4
UI
T
Rx-data-clk-skew-pin
Delay of any data lane relative to the clock lane, as 
measured at the end of Tx+Channel. This parameter 
is a collective sum of effects of data clock mismatches 
in Tx and on the medium connecting Tx and Rx.
0
2
UI
1
-1
1
2
V
Rx-cm-dc-pin
DC common mode ranges at the Rx input for any data 
or clock channel, defined as average of V
D+
 and V
D-
.
145
350
mV
V
Rx-cm-ac-pin
AC common mode ranges at the Rx input for any data 
or clock channel, defined as ((V
D+
 + V
D-
)/2 - V
RX-cm-
dc-pin
). Refer to 
 for illustration.
–50
50
mV
T
Rx-margin
Measured timing margin during receiver margining 
with any receiver equalizer off or forTx EQ only based 
systems
0.1
UI
V
Rx-margin
Measured voltage margin during receiver margining 
with receiver equalizer off
40
mV