參數(shù)資料
型號: MPC8547VUAUG
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 1000 MHz, MICROPROCESSOR, CBGA783
封裝: 29 X 29 MM, 1 MM PITCH, FLIP CHIP, LEAD FREE, CERAMIC, BGA-783
文件頁數(shù): 107/142頁
文件大?。?/td> 1504K
代理商: MPC8547VUAUG
MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
67
High-Speed Serial Interfaces (HSSI)
Figure 46 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 the MPC8548E SerDes reference clock
input’s DC requirement.
Figure 46. Single-Ended Connection (Reference Only)
15.2.4
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.
The detailed AC requirements of the SerDes reference clocks is defined by each interface protocol based
on application usage. Refer to the following sections for detailed information:
15.2.4.1
Spread Spectrum Clock
SD_REF_CLK/SD_REF_CLK are designed to work with a spread spectrum clock (+0% to –0.5%
spreading at 30–33 kHz rate is allowed), assuming both ends have same reference clock. For better results,
a source without significant unintended modulation should be used.
SD_REF_CLK
100
Ω Differential PWB Trace
Clock Driver
CLK_Out
Single-Ended CLK
Driver Chip
MPC8548E
33
Ω
Total 50
Ω. Assume clock driver’s
output impedance is about 16
Ω.
50
Ω
SerDes Refer.
CLK Receiver
50
Ω
50
Ω
相關(guān)PDF資料
PDF描述
MPC8548CHXAVHB 32-BIT, 1500 MHz, MICROPROCESSOR, CBGA783
MPC8548CPXAVJ 32-BIT, 1500 MHz, MICROPROCESSOR, PBGA783
MPC8548CVTAVGB 32-BIT, 1500 MHz, MICROPROCESSOR, PBGA783
MPC8548CVUAUHB 32-BIT, 1333 MHz, MICROPROCESSOR, CBGA783
MPC8548CVUAVHB 32-BIT, 1500 MHz, MICROPROCESSOR, CBGA783
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8547VUAUJ 功能描述:微處理器 - MPU PQ38 8548 PB-FREE RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8548CDS 制造商:Freescale Semiconductor 功能描述:CDS DEV TOOLS FOR 8548 制造商:Freescale Semiconductor 功能描述:CDS DEV TOOLS FOR 8548 - Bulk 制造商:Freescale Semiconductor 功能描述:DEV TOOLS CDS FOR 8548 制造商:Freescale Semiconductor 功能描述:KIT MPC8548 CONFIG DEV SYSTEM
MPC8548CDS 制造商:Freescale Semiconductor 功能描述:CDS DEV TOOLS FOR 8548
MPC8548CHXAQG 功能描述:微處理器 - MPU PQ38 8548 PB-FREE -40C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8548CPXAQGB 功能描述:微處理器 - MPU FG PQ38 8548 RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324