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      參數(shù)資料
      型號: MPC8378CVRANFA
      廠商: FREESCALE SEMICONDUCTOR INC
      元件分類: 微控制器/微處理器
      英文描述: 32-BIT, 333 MHz, MICROPROCESSOR, PBGA689
      封裝: 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
      文件頁數(shù): 94/125頁
      文件大?。?/td> 894K
      代理商: MPC8378CVRANFA
      MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 5
      Freescale Semiconductor
      70
      A recovered Tx UI is calculated over 3500 consecutive unit intervals of sample data. The eye diagram is created using all edges
      of the 250 consecutive UI in the center of the 3500 UI used for calculating the Tx UI.
      NOTE
      It is recommended that the recovered Tx UI be calculated using all edges in the 3500
      consecutive UI interval with a fit algorithm using a minimization merit function (that is,
      least squares and median deviation fits).
      Figure 46. Minimum Transmitter Timing and Voltage Output Compliance Specifications
      15.4.3
      Differential Receiver (Rx) Input Specifications
      The following table defines the specifications for the differential input at all receivers. The parameters are specified at the
      component pins.
      Table 58. Differential Receiver (Rx) Input Specifications
      Parameter
      Comments
      Symbol
      Min
      Typical
      Max
      Units
      Note
      Unit interval
      Each UPERX is 400 ps ± 300
      ppm. UPERX does not account
      for Spread Spectrum Clock
      dictated variations.
      UI
      399.88
      400
      400.12
      ps
      1
      Differential peak-to-peak
      output voltage
      VPEDPPRX = 2 |VRX-D+
      VRX-D-|
      VRX-DIFFp-p
      0.175
      1.200
      V
      2
      Minimum receiver eye
      width
      The maximum interconnect
      media and transmitter jitter that
      can be tolerated by the receiver
      can be derived as
      TRX-MAX-JITTER = 1 –
      UPEEWRX = 0.6 UI.
      TRX-EYE
      0.4
      ——UI
      2, 3
      [De-emphasized Bit]
      566 mV (3 dB) >= VTX-DIFFp-p-MIN >= 505 mV (4 dB)
      [Transition Bit]
      VTX-DIFFp-p-MIN = 800 mV
      [Transition Bit]
      VTX-DIFFp-p-MIN = 800 mV
      0.7 UI = UI – 0.3 UI(JTX-TOTAL-MAX)
      VTX-DIFF = 0 mV
      (D+ D– Crossing Point)
      VTX-DIFF = 0 mV
      (D+ D– Crossing Point)
      相關(guān)PDF資料
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