参数资料
型号: MPC8378E-MDS-PB
厂商: Freescale Semiconductor
文件页数: 115/128页
文件大小: 0K
描述: BOARD PROCESSOR FOR MDS S
标准包装: 1
类型: MPU
适用于相关产品: MPC8378
所含物品:
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
87
This figure shows the SerDes reference clock connection reference circuits for a single-ended clock driver.
It assumes the DC levels of the clock driver are compatible with device SerDes reference clock input’s DC
requirement.
Figure 62. Single-Ended Connection (Reference Only)
20.2.4
AC Requirements for SerDes Reference Clocks
The clock driver selected should provide a high quality reference clock with low phase noise and
cycle-to-cycle jitter. Phase noise less than 100 KHz can be tracked by the PLL and data recovery loops and
is less of a problem. Phase noise above 15 MHz is filtered by the PLL. The most problematic phase noise
occurs in the 1–15 MHz range. The source impedance of the clock driver should be 50
Ω to match the
transmission line and reduce reflections which are a source of noise to the system.
This table describes some AC parameters common to SGMII and protocols
Table 67. SerDes Reference Clock Common AC Parameters
At recommended operating conditions with XVDD_SRDS or XVDD_SRDS = 1.0 V ± 5%.
Parameter
Symbol
Min
Max
Unit
Note
Rising Edge Rate
Rise Edge Rate
1.0
4.0
V/ns
Falling Edge Rate
Fall Edge Rate
1.0
4.0
V/ns
Differential Input High Voltage
VIH
200
mV
Differential Input Low Voltage
VIL
–200
mV
50
Ω
50
Ω
SD
n_REF_CLK
SD
n_REF_CLK
100
Ω differential PWB trace
SerDes Refer.
CLK Receiver
Clock Driver
CLK_Out
Single-Ended CLK
Driver Chip
33
Ω
Total 50
Ω. Assume clock driver’s
output impedance is about 16
Ω.
50
Ω
Chip
相关PDF资料
PDF描述
MPC5553EVBE BOARD EVAL FOR MPC5553
MPC8323E-MDS-PB BOARD MODULE DEV SYSTEM 8323
MPC5534EVBE BOARD EVAL FOR MPC5534
MPC8313E-RDBB BOARD CPU 8313E VER 2.1
STD12W-T WIRE & CABLE MARKERS
相关代理商/技术参数
参数描述
MPC8378EVRAFDA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8378EVRAFFA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8378EVRAFGA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8378EVRAGD 功能描述:微处理器 - MPU PBGA W/ ENCR RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8378EVRAGDA 功能描述:微处理器 - MPU 8378 PBGA ST PbFr W/ENC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324