• 參數(shù)資料
    型號: MC8641DVU1333GC
    廠商: FREESCALE SEMICONDUCTOR INC
    元件分類: 微控制器/微處理器
    英文描述: MICROPROCESSOR, CBGA1023
    封裝: 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
    文件頁數(shù): 103/140頁
    文件大?。?/td> 1484K
    代理商: MC8641DVU1333GC
    MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 0
    Freescale Semiconductor
    65
    High-Speed Serial Interfaces (HSSI)
    13.2.3
    Interfacing With Other Differential Signaling Levels
    With on-chip termination to SGND, the differential reference clocks inputs are HCSL (High-Speed
    Current Steering Logic) compatible DC-coupled.
    Many other low voltage differential type outputs like LVDS (Low Voltage Differential Signaling)
    can be used but may need to be AC-coupled due to the limited common mode input range allowed
    (100 to 400 mV) for DC-coupled connection.
    LVPECL outputs can produce signal with too large amplitude and may need to be DC-biased at
    clock driver output first, then followed with series attenuation resistor to reduce the amplitude, in
    addition to AC-coupling.
    NOTE
    Figure 43 to Figure 46 below are for conceptual reference only. Due to the
    fact that clock driver chip's internal structure, output impedance and
    termination requirements are different between various clock driver chip
    manufacturers, it’s very possible that the clock circuit reference designs
    provided by clock driver chip vendor are different from what is shown
    below. They might also vary from one vendor to the other. Therefore,
    Freescale Semiconductor can neither provide the optimal clock driver
    reference circuits, nor guarantee the correctness of the following clock
    driver connection reference circuits. The system designer is recommended
    to contact the selected clock driver chip vendor for the optimal reference
    circuits with the MPC8641D SerDes reference clock receiver requirement
    provided in this document.
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