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PPC8567CVTAQGGA 数据表(PDF) 72 Page - Freescale Semiconductor, Inc |
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PPC8567CVTAQGGA 数据表(HTML) 72 Page - Freescale Semiconductor, Inc |
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72 / 139 page ![]() MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1 72 Freescale Semiconductor PCI Express VTX-CM-ACp RMS AC Peak Common Mode Output Voltage —— 20 mV VTX-CM-ACp = RMS(|VTXD+ + VTXD-|/2 – VTX-CM-DC) VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2 See Note 2 VTX-CM-DC-ACTIVE- IDLE-DELTA Absolute Delta of DC Common Mode Voltage During L0 and Electrical Idle 0 — 100 mV |VTX-CM-DC (during L0) – VTX-CM-Idle-DC (During Electrical Idle)|<=100 mV VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2 [L0] VTX-CM-Idle-DC = DC(avg) of |VTX-D+ + VTX-D-|/2 [Electrical Idle] See Note 2. VTX-CM-DC-LINE-DELTA Absolute Delta of DC Common Mode between D+ and D– 0— 25 mV |VTX-CM-DC-D+ – VTX-CM-DC-D-| <= 25 mV VTX-CM-DC-D+ = DC(avg) of |VTX-D+| VTX-CM-DC-D- = DC(avg) of |VTX-D-| See Note 2. VTX-IDLE-DIFFp Electrical Idle differential Peak Output Voltage 0— 20 mV VTX-IDLE-DIFFp = |VTX-IDLE-D+ -VTX-IDLE-D-| <= 20 mV See Note 2. VTX-RCV-DETECT The amount of voltage change allowed during Receiver Detection — — 600 mV The total amount of voltage change that a transmitter can apply to sense whether a low impedance Receiver is present. See Note 6. VTX-DC-CM The TX DC Common Mode Voltage 0 — 3.6 V The allowed DC Common Mode voltage under any conditions. See Note 6. ITX-SHORT TX Short Circuit Current Limit — — 90 mA The total current the Transmitter can provide when shorted to its ground TTX-IDLE-MIN Minimum time spent in Electrical Idle 50 — — UI Minimum time a Transmitter must be in Electrical Idle Utilized by the Receiver to start looking for an Electrical Idle Exit after successfully receiving an Electrical Idle ordered set TTX-IDLE-SET-TO-IDLE Maximum time to transition to a valid Electrical idle after sending an Electrical Idle ordered set — — 20 UI After sending an Electrical Idle ordered set, the Transmitter must meet all Electrical Idle Specifications within this time. This is considered a debounce time for the Transmitter to meet Electrical Idle after transitioning from L0. TTX-IDLE-TO-DIFF-DATA Maximum time to transition to valid TX specifications after leaving an Electrical idle condition — — 20 UI Maximum time to meet all TX specifications when transitioning from Electrical Idle to sending differential data. This is considered a debounce time for the TX to meet all TX specifications after leaving Electrical Idle RLTX-DIFF Differential Return Loss 10 — — dB Measured over 50 MHz to 1.25 GHz. See Note 4 Table 51. Differential Transmitter (TX) Output Specifications (continued) Symbol Parameter Min Nom Max Units Comments |
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