SPRSPB4A June 2024 – December 2024 TDA4APE-Q1 , TDA4VPE-Q1
PRODUCTION DATA
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The PCIe interfaces are compliant with the electrical parameters specified in PCI Express® Base Specification Revision 4.0, September 27, 2017.
This Device imposes an additional limit on SERDES REFCLK when used in Input mode with internal termination enabled, as described by parameter VREFCLK_TERM in Table 6-2, 4-L-PHY SERDES REFCLK Electrical Characteristics. Internal termination is enabled by default and must be disabled before applying a reference clock signal that exceeds the limits defined by VREFCLK_TERM. External termination should always be enabled on the source side.
PARAMETER | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|
VREFCLK_TERM | Single ended voltage threshold at the reference clock pin when internal termination is enabled | 400 | mV | ||
RTERM | Internal termination | 40 | 50 | 62.5 | Ω |
The SerDes USB interfaces are compliant with the USB3.1 SuperSpeed Transmitter and Receiver Normative Electrical Parameters as defined in the Universal Serial Bus 3.1 Specification, Revision 1.0 , July 26, 2013.
The SGMII interfaces electrical characteristics are compliant with 1000BASE-KX per IEEE802.3 Clause 70.
The SGMII 2.5G / XAUI interfaces electrical characteristics are compliant with IEEE802.3 Clause 47.
The QSGMII interface electrical characteristics are compliant with QSGMII Specification revision 1.2.
USXGMII supports IEEE 802.3 TX and RX electrical characteristics of Clause 72-7 and Annex 69B.
IEEE 802.3 Tables 72-7 and 72-8 are not required by USXGMII since these tables are associated with training (Clause 72-6), which is not a requirement of USXGMII.
The pre, main, and post cursors should be set by using BER sweeps.