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VSC7440 Datasheet(PDF) 397 Page - Microsemi Corporation |
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VSC7440 Datasheet(HTML) 397 Page - Microsemi Corporation |
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397 / 444 page  Electrical Specifications VMDS-10492 VSC7440 Datasheet Revision 4.2 380 6.2.4 SERDES6G This section describes the AC specifications for the 6G transceiver. The transceiver supports the following modes: • 100BASE-FX •SGMII •SFP •2.5G •PCIe • 1000BASE-KX The following table lists the AC characteristics for the 6G transmitter in 100BASE-FX, SGMII, SFP, 2.5G, and 1000BASE-KX modes. Applies to the S[6:5]_TXN/P pins. Differential input return loss RLISDD11 –10 + 10 x log (ƒ/625 MHz) dB 625 MHz to 1250 MHz. Jitter tolerance, total1 TOLTJ 600 ps SGMII, SFP, 1000BASE-KX. Measured according to IEEE 802.3 Clause 38.6.8. Jitter tolerance, deterministic1 TOLDJ 370 ps SGMII, SFP, 1000BASE-KX. Measured according to IEEE 802.3 Clause 38.6.8. Jitter tolerance, duty cycle distortion TOLDCD 1.4 nsP-P 100BASE-FX. Measured according to ISO/IEC 9314-3:1990. Jitter tolerance, data dependent TOLDDJ 2.2 nsP-P 100BASE-FX. Measured according to ISO/IEC 9314-3:1990. Jitter tolerance, random TOLRJ 2.27 nsP-P 100BASE-FX. Measured according to ISO/IEC 9314-3:1990. Wideband SyncE jitter tolerance WJT 312.5 UIP-P 10 Hz to 12.1 Hz. Measured according to ITU-T G.8262, section 9.2. Wideband SyncE jitter tolerance WJT 3750/ƒ UIP-P 12.1 Hz to 2.5 kHz (ƒ) Measured according to ITU-T G.8262, section 9.2. Wideband SyncE jitter tolerance WJT 1.5 UIP-P 2.5 kHz to 50 kHz. Measured according to ITU-T G.8262, section 9.2. 1. Jitter requirements represent high-frequency jitter (above 637 kHz) and not low-frequency jitter or wander. Table 293 • 100BASE-FX, SGMII, SFP, 2.5G, 1000BASE-KX Transmitter Parameter Symbol Minimum Maximum Unit Condition Data rate 125 – 100 ppm 125 + 100 ppm Mbps 100BASE-FX Data rate 1.25 – 100 ppm 1.25 + 100 ppm Gbps SGMII, SFP, 1000BASE-KX Data rate 3.125 – 100 ppm 3.125 + 100 ppm Gbps 2.5G Table 292 • 100BASE-FX, SGMII, SFP, 1000BASE-KX Receiver (continued) Parameter Symbol Minimum Maximum Unit Condition |
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