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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8313E датащи(PDF) 33 Page - Freescale Semiconductor, Inc |
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MPC8313E датащи(HTML) 33 Page - Freescale Semiconductor, Inc |
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33 / 92 page  MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 1 Freescale Semiconductor 33 Ethernet: Three-Speed Ethernet, MII Management Figure 17. Transmitter Reference Circuit 8.4.3.1 SGMII Transmit AC Timing Specifications Table 36 provides the SGMII transmit AC timing targets. A source synchronous clock is not provided. Table 35. DC Receiver Electrical Characteristics Parameter Symbol Min Max Unit Notes DC input voltage range — — — — Input must be externally ac-coupled. Input differential voltage Vrx_diffpp 100 1200 mV Peak to peak input differential voltage. Loss of signal threshold Vlos 30 100 mV — Input AC common mode voltage Vcm_acpp — 100 mV Peak to peak ac common mode voltage. Receiver differential input impedance Zrx_diff 80 120 Ω — Receiver common mode input impedance Zrx_cm 20 35 Ω — Common mode input voltage Vcm xcorevss xcorevss V On-chip termination to xcorevss. Table 36. SGMII Transmit AC Timing Specifications Parameter Symbol Min Max Unit Notes Deterministic Jitter JD — 0.17 UI p-p — Total Jitter JT — 0.35 UI p-p — Unit Interval UI 800 800 ps +/– 100ppm VOD fall time (80%–20%) tfall 50 120 ps — VOD rise time (20%–80%) trise 50 120 ps — Source synchronous clock is not supported 100 ohms SD_TX_B SD_TX Transmitter |
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