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    • 參數(shù)資料
      型號(hào): ISP1581BD
      廠商: NXP SEMICONDUCTORS
      元件分類: 總線控制器
      英文描述: Universal Serial Bus 2.0 high-speed interface device
      中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
      封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
      文件頁(yè)數(shù): 47/73頁(yè)
      文件大?。?/td> 1819K
      代理商: ISP1581BD
      Philips Semiconductors
      ISP1581
      USB 2.0 HS interface device
      Objective specification
      Rev. 02 — 23 October 2000
      47 of 73
      9397 750 07648
      Philips Electronics N.V. 2000. All rights reserved.
      12.1.1
      Template 1 (transmit waveform; device without captive cable)
      The eye pattern in
      Figure 7
      defines the transmit waveform requirements for a hub
      (measured at TP2) or a device without a captive
      1
      cable (measured at TP3). The
      corresponding signal levels and timings are given in
      Table 77
      . Timings are given as a
      percentage of the unit interval (UI), which represents the nominal bit duration T
      PERIOD
      for a 480 Mbit/s transmission rate.
      [1]
      [2]
      In the unit interval following a transition.
      In all other cases.
      1.
      Captive cables have a vendor-specific connector to the peripheral (hardwired or detachable) and a USB “A” connector on the other side.
      For hot plugging, the vendor-specific connector must meet the same performance requirements as a USB “B” connector.
      Fig 7.
      Template 1 eye pattern (transmit waveform).
      Table 77: Template 1 eye pattern definition
      Name
      Differential voltage on DP, DM
      (mV)
      +
      525
      [1]
      +
      475
      [2]
      525
      [1]
      475
      [2]
      0
      0
      +
      300
      +
      300
      300
      300
      Relative duration
      (% of unit interval)
      n.a.
      Level 1
      Level 2
      n.a.
      Point 1
      Point 2
      Point 3
      Point 4
      Point 5
      Point 6
      7.5
      92.5
      37.5
      62.5
      37.5
      62.5
      MBL206
      level 1
      level 2
      point 3
      point 4
      point 2
      point 1
      point 5
      0
      100
      relative duration
      (% of unit interval)
      400 mV
      +
      400 mV
      0
      0
      100
      100
      200
      300
      400
      500
      600
      differential
      output
      voltage
      (mV)
      200
      300
      400
      500
      600
      point 6
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