參數(shù)資料
型號: PC8641MSH1333JB
廠商: E2V TECHNOLOGIES PLC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, 2.72 MM HEIGHT, 1 MM PITCH, ROHS COMPLIANT, CERAMIC, FC-BGA-1023
文件頁數(shù): 63/111頁
文件大小: 1660K
代理商: PC8641MSH1333JB
55
0893C–HIREL–01/10
e2v semiconductors SAS 2010
PC8641 and PC8641D [Preliminary]
Figure 14-1. Driver and Receiver of SerDes (PCI Express, Serial RapidIO, and
SDn_REF_CLK/SDn_REF_CLK
15. PCI Express
This section describes the DC and AC electrical specifications for the PCI Express bus of the PC8641.
15.1
DC Requirements for PCI Express SDn_REF_CLK and SDn_REF_CLK
15.2
AC Requirements for PCI Express SerDes Clocks
Table 15-1 lists AC requirements.
15.3
Clocking Dependencies
The ports on the two ends of a link must transmit data at a rate that is within 600 parts per million (ppm)
of each other at all times. This is specified to allow bit rate clock sources with a ±300 ppm tolerance.
15.4
Physical Layer Specifications
The following is a summary of the specifications for the physical layer of PCI Express on this device. For
further details as well as the specifications of the Transport and Data Link layer please use the PCI
EXPRESS Base Specification. REV. 1.0a document.
Output
Driver
50
Ω
50
Ω
Serial Data Out
Input
Amp
Serial Data In
50
Ω
50
Ω
Table 15-1.
SDn_REF_CLK and SDn_REF_CLK AC Requirements
Symbol
Parameter Description
Min
Typical
Max
Units
Notes
t
REF
REFCLK cycle time
10
ns
t
REFCJ
REFCLK cycle-to-cycle jitter. Difference in the
period of any two adjacent REFCLK cycles
––
100
ps
tREFPJ
Phase jitter. Deviation edge location in edge
location with respect to mean
-50
–50
ps
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