• 參數(shù)資料
    型號: MC8641DTVU1250HE
    廠商: Freescale Semiconductor
    文件頁數(shù): 93/130頁
    文件大?。?/td> 0K
    描述: IC MPU DUAL CORE E600 1023FCCBGA
    標(biāo)準(zhǔn)包裝: 1
    系列: MPC86xx
    處理器類型: 32-位 MPC86xx PowerPC
    速度: 1.25GHz
    電壓: 1.05V
    安裝類型: 表面貼裝
    封裝/外殼: 1023-BCBGA,F(xiàn)CCBGA
    供應(yīng)商設(shè)備封裝: 1023-FCCBGA(33x33)
    包裝: 托盤
    MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
    Freescale Semiconductor
    65
    High-Speed Serial Interfaces (HSSI)
    Figure 43 shows the SerDes reference clock connection reference circuits for HCSL type clock driver. It
    assumes that the DC levels of the clock driver chip is compatible with MPC8641D SerDes reference clock
    input’s DC requirement.
    Figure 43. DC-Coupled Differential Connection with HCSL Clock Driver (Reference Only)
    Figure 44 shows the SerDes reference clock connection reference circuits for LVDS type clock driver.
    Since LVDS clock driver’s common mode voltage is higher than the MPC8641D SerDes reference clock
    input’s allowed range (100 to 400 mV), AC-coupled connection scheme must be used. It assumes the
    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
    50
    Ω
    50
    Ω
    SD
    n_REF_CLK
    SD
    n_REF_CLK
    Clock Driver
    100
    Ω differential PWB trace
    Clock driver vendor dependent
    source termination resistor
    SerDes Refer.
    CLK Receiver
    Clock Driver
    CLK_Out
    HCSL CLK Driver Chip
    33
    Ω
    33
    Ω
    Total 50
    Ω. Assume clock driver’s
    output impedance is about 16
    Ω.
    MPC8641D
    CLK_Out
    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
    MPC8641D
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