mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 87

• Manufacturer Part Number: mpc8569e
• Description: Mpc8569e Powerquicc Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

2.10.3.2
This section discusses the PCI Express AC physical layer receiver specifications for 2.5 Gb/s.
Freescale Semiconductor
At recommended operating conditions with XV
AC-coupling
capacitor
Notes:
1. No test load is necessarily associated with this value.
2. Specified at the measurement point into a timing and voltage compliance test load as shown in
3. A T
4. The MPC8569E SerDes transmitter does not have CTX built-in. An external AC-coupling capacitor is required.
any 250 consecutive TX UIs.
transmitter collected over any 250 consecutive TX UIs. The T
TX jitter budget collected over any 250 consecutive TX UIs. It must be noted 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.
Parameter
Table 50. PCI Express (2.5Gb/s) Differential Transmitter (TX) Output AC Specifications (continued)
TX-EYE
= 0.70 UI provides for a total sum of deterministic and random jitter budget of T
PCI Express AC Physical Layer Receiver Specifications
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
C
TX
Symbol
Min
75
DD
= 1.0 V ± 3%. and 1.1 V ± 3%
Typ
—
Max
200
TX-EYE-MEDIAN-to-MAX-JITTER
Unit
nF
All transmitters are AC-coupled. The
AC-coupling is required either within the media or
within the transmitting component itself. See Note 4.
median is less than half of the total
TX-JITTER-MAX
Comments
Figure 46
= 0.30 UI for the
and measured over
PCI Express
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