参数资料
型号: MC8640DVU1000HC
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 1000 MHz, MICROPROCESSOR, CBGA1023
封装: 33 X 33 MM, ROHS COMPLIANT, CERAMIC, FCBGA-1023
文件页数: 92/130页
文件大小: 1495K
代理商: MC8640DVU1000HC
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
64
Freescale Semiconductor
High-Speed Serial Interfaces (HSSI)
LVDS output driver features 50-
Ω termination resistor. It also assumes that the LVDS transmitter
establishes its own common mode level without relying on the receiver or other external component.
Figure 44. AC-Coupled Differential Connection with LVDS Clock Driver (Reference Only)
Figure 45 shows the SerDes reference clock connection reference circuits for LVPECL type clock driver.
Since LVPECL driver’s DC levels (both common mode voltages and output swing) are incompatible with
MPC8640D SerDes reference clock input’s DC requirement, AC-coupling has to be used. Figure 45
assumes that the LVPECL clock driver’s output impedance is 50
Ω. R1 is used to DC-bias the LVPECL
outputs prior to AC-coupling. Its value could be ranged from 140
Ω to 240 Ω depending on clock driver
vendor’s requirement. R2 is used together with the SerDes reference clock receiver’s 50-
Ω termination
resistor to attenuate the LVPECL output’s differential peak level such that it meets the MPC8640D SerDes
reference clock’s differential input amplitude requirement (between 200 mV and 800 mV differential
peak). For example, if the LVPECL output’s differential peak is 900 mV and the desired SerDes reference
clock input amplitude is selected as 600 mV, the attenuation factor is 0.67, which requires R2 = 25
Ω.
50
Ω
50
Ω
SD
n_REF_CLK
SD
n_REF_CLK
Clock Driver
100
Ω differential PWB trace
SerDes Refer.
CLK Receiver
Clock Driver
CLK_Out
LVDS CLK Driver Chip
10 nF
MPC8640D
相关PDF资料
PDF描述
MC9S12GC32VFA 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP48
MC9S12GC64MPB 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP52
MB88155PFTG-402-ERE1 20 MHz, OTHER CLOCK GENERATOR, PDSO8
MPC8541EVTAKE 32-BIT, 600 MHz, RISC PROCESSOR, PBGA783
MPC8540VTAQFB 32-BIT, 667 MHz, MICROPROCESSOR, PBGA783
相关代理商/技术参数
参数描述
MC8640DVU1000HE 功能描述:微处理器 - MPU G8 REV3 1.1V 105C 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
MC8640DVU1000N 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications Addendum for the MC8640xTxxyyyyaC Series
MC8640DVU1000NC 功能描述:微处理器 - MPU G8,REV2.1,0.95V,105C 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
MC8640DVU1067H 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications Addendum for the MC8640xTxxyyyyaC Series
MC8640DVU1067N 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications Addendum for the MC8640xTxxyyyyaC Series