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VSC8504-02 датащи(PDF) 102 Page - Microsemi Corporation |
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VSC8504-02 датащи(HTML) 102 Page - Microsemi Corporation |
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102 / 131 page ![]() Electrical Specifications VMDS-10507 VSC8504-02 Datasheet Revision 4.2 91 Figure 38 • SGMII DC Transmit Test Circuit Figure 39 • SGMII DC Definitions Δ|VOD| = | |VOAH – VOBL| – |VOBH – VOAL| | ΔVOS =| ½(VOAH +VOBL) – ½(VOAL +VOBH) | Figure 40 • SGMII DC Driver Output Impedance Test Circuit The following table lists the DC specifications for the SGMII receivers. Change in VOS between 0 and 1, SGMII mode ΔVOS 25 mV RL =100 Ω ±1% Output current, driver shorted to GND, SGMII mode |IOSA|, |IOSB| 40 mA Output current, drivers shorted together, SGMII mode |IOSAB|12 mA 1. Requires AC-coupling for SGMII compliance. 2. Matching of reflection coefficients. For more information about test methods, see IEEE Std 1596.3-1996. Table 102 • SerDes Receiver DC Specifications Parameter Symbol Minimum Maximum Unit Condition Input voltage range, VIA or VIB VI –25 1250 mV Table 101 • SerDes Driver DC Specifications (continued) Parameter Symbol Minimum Maximum Unit Condition V OA V OB 100 Ω ± 1% V OD = VOA – VOB V OS = ½ (VOA + VOB) VOA VOB GND 0 V differential VOD |VOD| |VOD| VOS GND 0 V differential VOS V OA V OB 50 Ω ± 0.1% 0 and 1 50 Ω ± 0.1% V c + – |
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