LXT972 Level One, LXT972 Datasheet - Page 45

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

Figure 29: Auto Negotiation and Fast Link Pulse Timing
Figure 30: Fast Link Pulse Timing
Table 31: Auto Negotiation and Fast Link Pulse Timing Parameters
Clock/Data pulse width
Clock pulse to Data pulse
Clock pulse to Clock pulse
FLP burst width
FLP burst to FLP burst
Clock/Data pulses per burst
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production testing.
T P O
T P O
Parameter
Clock Pulse
FLP Burst
t1
t4
Sym
t1
t2
t3
t4
t5
t2
–
Min
55.5
123
17
–
–
8
t5
Data Pulse
Typ
100
12
–
–
2
–
t1
t3
1
LXT972 Preliminary Test Specifications
Max
63.8
127
24
33
–
–
Units
FLP Burst
ms
ms
ns
ea
s
s
Clock Pulse
Test Conditions
–
–
–
–
–
–
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