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參數(shù)資料
| 型號： | MPC8379ECVRALG |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 87/117頁 |
| 文件大?。?/td> | 0K |
| 描述： | MPU POWERQUICC II PRO 689-PBGA |
| 標準包裝： | 27 |
| 系列： | MPC83xx |
| 處理器類型： | 32-位 MPC83xx PowerQUICC II Pro |
| 速度： | 667MHz |
| 電壓： | 1V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 689-BBGA 裸露焊盤 |
| 供應商設備封裝： | 689-TEPBGA II（31x31） |
| 包裝： | 托盤 |
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MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
71
— The SerDes reference clock input can be either differential or single-ended. Refer to the
Differential Mode and Single-ended Mode description below for further detailed requirements.
The maximum average current requirement that also determines the common mode voltage range
— When the SerDes reference clock differential inputs are DC coupled externally with the clock
driver chip, the maximum average current allowed for each input pin is 8 mA. In this case, the
exact common mode input voltage is not critical as long as it is within the range allowed by the
maximum average current of 8 mA (refer to the following bullet for more detail), since the
input is AC-coupled on-chip.
— This current limitation sets the maximum common mode input voltage to be less than 0.4 V
(0.4 V
÷ 50 = 8 mA) while the minimum common mode input level is 0.1 V above
SGND_SRDSn (xcorevss). For example, a clock with a 50/50 duty cycle can be produced by
a clock driver with output driven by its current source from 0 mA to 16 mA (0–0.8 V), such
that each phase of the differential input has a single-ended swing from 0 V to 800 mV with the
common mode voltage at 400 mV.
— If the device driving the SDn_REF_CLK and SDn_REF_CLK inputs cannot drive 50
Ω to
SGND_SRDSn (xcorevss) DC, or it exceeds the maximum input current limitations, then it
must be AC-coupled off-chip.
The input amplitude requirement
— This requirement is described in detail in the following sections.
Figure 49. Receiver of SerDes Reference Clocks
20.2.2
DC Level Requirement for SerDes Reference Clocks
The DC level requirement for the device SerDes reference clock inputs is different depending on the
signaling mode used to connect the clock driver chip and SerDes reference clock inputs as described
below.
Differential Mode
— The input amplitude of the differential clock must be between 400 mV and 1600 mV
differential peak-peak (or between 200 mV and 800 mV differential peak). In other words,
each signal wire of the differential pair must have a single-ended swing less than 800 mV and
Input
Amp
50
Ω
50
Ω
SD
n_REF_CLK
SD
n_REF_CLK
相關PDF資料 |
PDF描述 |
|---|---|
| MPC8379ECVRAJF | MPU POWERQUICC II PRO 689-PBGA |
| 395-012-521-202 | CARD EDGE 12POS DL .100X.200 BLK |
| CAT24C32YI-G | IC EEPROM SERIAL 32KB I2C 8TSSOP |
| MPC8379ECVRAGD | MPU POWERQUICC II PRO 689-PBGA |
| 395-012-521-201 | CARD EDGE 12POS DL .100X.200 BLK |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8379ECVRALGA | 功能描述:微處理器 - MPU 8379 PBGA XT PbFr W/ENC 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8379ECVRANDA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8379ECVRANFA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8379ECVRANG | 功能描述:微處理器 - MPU 837X ENCRYPTED 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8379ECVRANGA | 功能描述:微處理器 - MPU 8379 PBGA XT PbFr W/ENC 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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