LXT972 Level One, LXT972 Datasheet - Page 19

• Manufacturer Part Number: LXT972
• Description: 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet
• Manufacturer: Level One

Figure 8: 10BASE-T Clocking
Figure 9: 100BASE-X Clocking
T X _ C L K
(Sourced by LXT972)
R X _ C L K
(Sourced by LXT972)
XI
T X _ C L K
(Sourced by LXT972)
R X _ C L K
(Sourced by LXT972)
XI
2.5 MHz during Auto-Negotiation
2.5 MHz during Auto-Negotiation
2.5 MHz during Auto-Negotiation and 10BASE-T Data & Idle
2.5 MHz during Auto-Negotiation and 10BASE-T Data & Idle
Constant 25 MHz
Constant 25 MHz
LXT972 Functional Description
25 MHz once 100BASE-X
25 MHz once 100BASE-X
Link Established
Link Established
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