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VSC7440 Datasheet(PDF) 391 Page - Microsemi Corporation |
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VSC7440 Datasheet(HTML) 391 Page - Microsemi Corporation |
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391 / 444 page  Electrical Specifications VMDS-10492 VSC7440 Datasheet Revision 4.2 374 The following table lists the DC specifications for the 6G receiver. Applies to the PCIE_RXN/P and S[6:5]_RXN/P pins. 6.1.6 SERDES10G This section provides the DC specifications for the 10G transceiver. The transceiver supports the following modes: • 100BASE-FX •SGMII •SFP • 1000BASE-KX •2.5G • 10GBASE-KR •SFP+ (SFI) The following table lists the 10G transmitter specifications. Applies to the S[10:7]_TXN/P pins. Note that only S[10:9]_TXN/P pins support 10GBASEKR and SFP+ (SFI). Output voltage low VOL 0mV Differential peak-to-peak output voltage1 VO_DIFF 300 800 mVppd 100BASE-FX, SGMII2 Differential peak-to-peak output voltage1 VO_DIFF 500 1200 mVppd SFP, 2.5G Differential peak-to-peak output voltage1 VO_DIFF 800 1200 mVppd 1000BASE-KX and PCIe3 Differential peak-to-peak output voltage with Tx disabled VOD_IDLE 30 mVppd Output current, driver shorted to GND T_ISG 40 mA 1. Drive level depends on register configuration. 2. Compatibility to SGMII receiver requires AC-coupling. 3. Compatibility to supported standards require 1.2 V supply for driver. Table 282 • 6G Receiver Parameter Symbol Minimum Typical Maximum Unit Condition Differential resistance RDIFF 80 100 120 Ω Absolute input voltage range VIN –25 1200 mV Common-mode voltage VCM 0 Internal VCM mV AC-coupled operation1 1. Mode for common-mode termination is specified by configuration register setting. Input amplitude in DC-coupled mode must not exceed maximum input voltage range. For more information about optional DC-coupling, contact your Microsemi representative. Common-mode voltage VCM VDD_A mV DC-coupled operation, load type 21 Differential peak-to-peak input voltage VIN_DIFF 100 1600 mVppd See note 2 2. Compatibility to SGMII transmitter requires AC-coupling. Table 283 • 10G Transmitter Parameter Symbol Minimum Typical Maximum Unit Condition Differential resistance RDIFF 80 100 120 Ω Table 281 • 6G Transmitter (continued) Parameter Symbol Minimum Typical Maximum Unit Condition |
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