參數(shù)資料
型號: MPC8569EVTAQLJA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: RISC PROCESSOR, PBGA783
封裝: 29 X 29 MM, 1 MM PITCH, PLASTIC, BGA-783
文件頁數(shù): 113/126頁
文件大小: 2847K
代理商: MPC8569EVTAQLJA
PCI Express
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
Freescale Semiconductor
87
2.10.3.2
PCI Express AC Physical Layer Receiver Specifications
This section discusses the PCI Express AC physical layer receiver specifications for 2.5 Gb/s.
AC-coupling
capacitor
CTX
75
200
nF
All transmitters are AC-coupled. The
AC-coupling is required either within the media or
within the transmitting component itself. See Note 4.
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 Figure 46 and measured over
any 250 consecutive TX UIs.
3. A TTX-EYE = 0.70 UI provides for a total sum of deterministic and random jitter budget of TTX-JITTER-MAX = 0.30 UI for the
transmitter collected over any 250 consecutive TX UIs. The TTX-EYE-MEDIAN-to-MAX-JITTER median is less than half of the total
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.
4. The MPC8569E SerDes transmitter does not have CTX built-in. An external AC-coupling capacitor is required.
Table 50. PCI Express (2.5Gb/s) Differential Transmitter (TX) Output AC Specifications (continued)
At recommended operating conditions with XVDD = 1.0 V ± 3%. and 1.1 V ± 3%
Parameter
Symbol
Min
Typ
Max
Unit
Comments
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