Fast Ethernet 10/100 Quad Transceivers — LXT974/LXT975
Figure 33. 10BASE-T Jab and Unjab Timing
TX_EN
TXD
t
1
t
2
COL
Table 38. 10BASE-T Jab and Unjab Timing Parameters
1
Parameter
Sym
Min
Typ
Max
Units
2
Maximum transmit time
Unjab time
t1
t2
20
96 - 128
525
150
750
ms
ms
250
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production testing.
2. Typical transmit time may be either of these values depending on internal 32 ms clock synchronization.
Datasheet
59