P5010NXN1QMB Freescale Semiconductor, P5010NXN1QMB Datasheet - Page 117

• Manufacturer Part Number: P5010NXN1QMB
• Description: Processors - Application Specialized P5010 Ext Tmp NoEnc 1600/1200 r2.0
• Manufacturer: Freescale Semiconductor

Specifications of P5010NXN1QMB

• Rohs: yes

For recommended operating conditions, see
Unit Interval
Minimum receiver eye width
Maximum time between the jitter
median and maximum deviation
from the median.
Note:
1. No test load is necessarily associated with this value.
2. Specified at the measurement point and measured over any 250 consecutive UIs. The test load in
3. A T
4. It is recommended that the recovered Tx UI is calculated using all edges in the 3500 consecutive UI interval with a fit algorithm using
Rx device when taking measurements. If the clocks to the Rx and Tx are not derived from the same reference clock, the Tx UI
recovered from 3500 consecutive UI must be used as a reference for the eye diagram.
collected any 250 consecutive UIs. The TRX-EYE-MEDIAN-to-MAX-JITTER specification ensures a jitter distribution in which the
median and the maximum deviation from the median is less than half of the total. UI jitter budget collected over any 250 consecutive
Tx UIs. Note that the median is not the same as the mean. The jitter median describes the point in time where the number of jitter
points on either side is approximately equal as opposed to the averaged time value. If the clocks to the Rx and Tx are not derived from
the same reference clock, the Tx UI recovered from 3500 consecutive UI must be used as the reference for the eye diagram.
a minimization merit function. Least squares and median deviation fits have worked well with experimental and simulated data.
2.20.4.5.2
This section discusses the PCI Express AC physical layer receiver specifications 2.5 GT/s, and 5 GT/s.
This table defines the AC specifications for the PCI Express 2.0 (2.5 GT/s) differential input at all receivers. The parameters are
specified at the component pins. The AC timing specifications do not include RefClk jitter.
Freescale Semiconductor
RX-EYE
Parameter
= 0.40 UI provides for a total sum of 0.60 UI deterministic and random jitter budget for the Transmitter and interconnect
Table 69. PCI Express 2.0 (2.5 GT/s) Differential Receiver (Rx) Input AC Specifications
PCI Express AC Physical Layer Receiver Specifications
P5020/P5010 QorIQ Integrated Processor Hardware Specifications, Rev. 0
T
RX-EYE-MEDIAN-to
-MAX-JITTER
Table
Symbol
T
RX-EYE
UI
3.
399.88 400.00 400.12
Min
0.4
—
Typ
—
—
Max
0.3
—
Unit
ps
UI
UI
Each UI is 400 ps ± 300 ppm. UI does not
account for spread spectrum clock dictated
variations. See Note 1.
The maximum interconnect media and
Transmitter jitter that can be tolerated by the
Receiver can be derived as T
– T
See Notes 2 and 3.
Jitter is defined as the measurement variation of
the crossing points (V
to a recovered Tx UI. A recovered Tx UI is
calculated over 3500 consecutive unit intervals
of sample data. Jitter is measured using all
edges of the 250 consecutive UI in the center of
the 3500 UI used for calculating the Tx UI.
See Notes 2, 3 and 4.
RX-EYE
= 0.6 UI.
Figure 44
Electrical Characteristics
RX-DIFFp-p
Note
should be used as the
RX-MAX-JITTER
= 0 V) in relation
117
= 1